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Bob Cleek

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  1. Like
    Bob Cleek got a reaction from Canute in Drawing wood grain pattern with oil paint guide   
    That's a new one on me! I find it hard to believe that shellac's solvent, alcohol, would "melt" oil paint. The highly volatile solvents in lacquer would certainly have that effect, I'd expect, but not shellac. On the other hand, alcohol will thin (i.e. "mellt") most water-based acrylic paints.  
  2. Thanks!
    Bob Cleek got a reaction from Claire7 in Advice of rope work   
    The trick with coils, etc. is to make them off the model and then glue them down on the model when they are finished. By running the bitter end of a line beneath the pre-made coil, it can be made to appear to be part of the separately attached coil.
     
    In very small scales, for uniform coils, such as on pin rails, some will drive a couple of nails or pins a sufficient distance apart and wrap a suitable length of line around the pins to form the coil. For faking mooring lines, a similar approach is used.
     
    What I generally do is to take a piece of scrap styrofoam packing sheet stock (always a good idea to keep a few pieces around) and I wrap it in kitchen plastic wrap. (If I want a number of uniform sized coils or fakes, draw a pattern and place the pattern on the piece of styrofoam beneath the plastic wrap.) The plastic wrap will make it easier to remove the finished shaped line from the block when it's dry. Following the pattern seen through the plastic wrap (or not if you don't use a pattern,) I use sewing pins pushed into the styrofoam block to hold the line in place as I want it to look when attached to the model. You can put pins on either side of the line or through the line, however best suits the occasion. 
     
    After the line is pinned to the block, take a paintbrush and saturate the line with clear ("white") shellac. ("Orange" or "amber" shellac, which is also available, has an amber color and will work the same as "clear" shellac, but for most modeling applications, you don't want the color.) The shellac, right out of the can, is the consistency of water and will soak right into the fabric of the line. Only one application is required. Just a touch with a loaded small brush and the line will soak up the shellac. Let it soak in well but don't overdo it.  Now, let the shellac dry. As the shellac dries, the saturated line will gradually stiffen and you will be able to shape the line further as you may wish, using tweezers or the pins, whatever works for you. (Fingers aren't such a good idea because the shellacked lines will readily stick to your fingers and you may end up with a "tar baby" of string on your fingers.) If, after the shellac hardens, you want to further adjust the coil or fake, you need only apply some alcohol and shellac will soften again until the added alcohol evaporates. When the shellac is completely dry, which will be within a matter of minutes because its alcohol solvent evaporates very quickly, your line will appear as it did before, since the shellac becomes invisible, but it will be stiff and "cemented" into the position you shaped it to. (Blow on to speed up the process, if you want.) You can then remove the pins and carefully peel the line off the plastic wrap, which shouldn't stick too much to the line. and you can then attach the finished coil or fake to the model with glue or a bit more shellac..
     
    This technique can also be used to secure the ends of rigging thread from unraveling and to shape catenaries in things like footropes, or to stiffen rows of reef points so they hang naturally against a sail. Somewhere along the way, many folks have come to use PVA adhesive for similar purposes, but I became familiar with using shellac in the days before PVA became popular and never found watered down PVA to be much use for anything as an alternative to shellac, mainly because I found shellac easier to handle, it has better adhesive properties, and the drying speed of its alcohol solvent is far greater than that of water. Shellac is a perfect sealer for model work. Its archival properties are well-proven, it is readily cleaned up  alcohol, and is is completely safe for man or beast in all respects. I buy white ("clear") shellac (de-waxed if I can get it) by the quart and denatured alcohol by the gallon can (from which I decant it into plastic squirt bottles,) at any paint or hardware store. It's relatively inexpensive, has a relatively infinite shelf-life and a myriad of uses in modeling. It is also completely compatible with all other oil or acrylic coatings which might be applied over it.
     

  3. Like
    Bob Cleek reacted to druxey in Drawing wood grain pattern with oil paint guide   
    Oil paint, when new, is soluble in alcohol. As the paint film ages - and we are talking decades here - it becomes less soluble. After a century or so, if you are prepared to wait it out....
  4. Like
    Bob Cleek reacted to allanyed in Drawing wood grain pattern with oil paint guide   
    Maybe I am missing something, but what is the purpose of adding grain at our most common ship model scales?  If oak or elm or pine or other woods used in ship building could be reduced in scale, the grain would barely show up, if at all, so most model builders look for wood with little or no grain such Castello, Alaskan cedar, bass, holly, pear, &c.   Why would anyone want to add grain when wood with little or no grain is the goal to begin with?  
    Allan
  5. Like
    Bob Cleek reacted to modeller_masa in Drawing wood grain pattern with oil paint guide   
    Yes, definitely. The difference is that I used a lacquer can spray, which didn't touch the surface directly. 
    If you thin the dewaxed shellac from Zinsser with isoprophanol (probably at a 1:1 ratio), you can spray shellac with an airbrush. I didn't write this description because this guide is for newcomers.
  6. Like
    Bob Cleek reacted to dvm27 in Advice of rope work   
    Great tip Bob. I have found that a 50% white glue/PVA solution sometimes leaves a bit of a whitish crust on my darker rope. I'll certainly give the shellac a try.
  7. Like
    Bob Cleek got a reaction from AON in Advice of rope work   
    The trick with coils, etc. is to make them off the model and then glue them down on the model when they are finished. By running the bitter end of a line beneath the pre-made coil, it can be made to appear to be part of the separately attached coil.
     
    In very small scales, for uniform coils, such as on pin rails, some will drive a couple of nails or pins a sufficient distance apart and wrap a suitable length of line around the pins to form the coil. For faking mooring lines, a similar approach is used.
     
    What I generally do is to take a piece of scrap styrofoam packing sheet stock (always a good idea to keep a few pieces around) and I wrap it in kitchen plastic wrap. (If I want a number of uniform sized coils or fakes, draw a pattern and place the pattern on the piece of styrofoam beneath the plastic wrap.) The plastic wrap will make it easier to remove the finished shaped line from the block when it's dry. Following the pattern seen through the plastic wrap (or not if you don't use a pattern,) I use sewing pins pushed into the styrofoam block to hold the line in place as I want it to look when attached to the model. You can put pins on either side of the line or through the line, however best suits the occasion. 
     
    After the line is pinned to the block, take a paintbrush and saturate the line with clear ("white") shellac. ("Orange" or "amber" shellac, which is also available, has an amber color and will work the same as "clear" shellac, but for most modeling applications, you don't want the color.) The shellac, right out of the can, is the consistency of water and will soak right into the fabric of the line. Only one application is required. Just a touch with a loaded small brush and the line will soak up the shellac. Let it soak in well but don't overdo it.  Now, let the shellac dry. As the shellac dries, the saturated line will gradually stiffen and you will be able to shape the line further as you may wish, using tweezers or the pins, whatever works for you. (Fingers aren't such a good idea because the shellacked lines will readily stick to your fingers and you may end up with a "tar baby" of string on your fingers.) If, after the shellac hardens, you want to further adjust the coil or fake, you need only apply some alcohol and shellac will soften again until the added alcohol evaporates. When the shellac is completely dry, which will be within a matter of minutes because its alcohol solvent evaporates very quickly, your line will appear as it did before, since the shellac becomes invisible, but it will be stiff and "cemented" into the position you shaped it to. (Blow on to speed up the process, if you want.) You can then remove the pins and carefully peel the line off the plastic wrap, which shouldn't stick too much to the line. and you can then attach the finished coil or fake to the model with glue or a bit more shellac..
     
    This technique can also be used to secure the ends of rigging thread from unraveling and to shape catenaries in things like footropes, or to stiffen rows of reef points so they hang naturally against a sail. Somewhere along the way, many folks have come to use PVA adhesive for similar purposes, but I became familiar with using shellac in the days before PVA became popular and never found watered down PVA to be much use for anything as an alternative to shellac, mainly because I found shellac easier to handle, it has better adhesive properties, and the drying speed of its alcohol solvent is far greater than that of water. Shellac is a perfect sealer for model work. Its archival properties are well-proven, it is readily cleaned up  alcohol, and is is completely safe for man or beast in all respects. I buy white ("clear") shellac (de-waxed if I can get it) by the quart and denatured alcohol by the gallon can (from which I decant it into plastic squirt bottles,) at any paint or hardware store. It's relatively inexpensive, has a relatively infinite shelf-life and a myriad of uses in modeling. It is also completely compatible with all other oil or acrylic coatings which might be applied over it.
     

  8. Like
    Bob Cleek got a reaction from allanyed in Advice of rope work   
    The trick with coils, etc. is to make them off the model and then glue them down on the model when they are finished. By running the bitter end of a line beneath the pre-made coil, it can be made to appear to be part of the separately attached coil.
     
    In very small scales, for uniform coils, such as on pin rails, some will drive a couple of nails or pins a sufficient distance apart and wrap a suitable length of line around the pins to form the coil. For faking mooring lines, a similar approach is used.
     
    What I generally do is to take a piece of scrap styrofoam packing sheet stock (always a good idea to keep a few pieces around) and I wrap it in kitchen plastic wrap. (If I want a number of uniform sized coils or fakes, draw a pattern and place the pattern on the piece of styrofoam beneath the plastic wrap.) The plastic wrap will make it easier to remove the finished shaped line from the block when it's dry. Following the pattern seen through the plastic wrap (or not if you don't use a pattern,) I use sewing pins pushed into the styrofoam block to hold the line in place as I want it to look when attached to the model. You can put pins on either side of the line or through the line, however best suits the occasion. 
     
    After the line is pinned to the block, take a paintbrush and saturate the line with clear ("white") shellac. ("Orange" or "amber" shellac, which is also available, has an amber color and will work the same as "clear" shellac, but for most modeling applications, you don't want the color.) The shellac, right out of the can, is the consistency of water and will soak right into the fabric of the line. Only one application is required. Just a touch with a loaded small brush and the line will soak up the shellac. Let it soak in well but don't overdo it.  Now, let the shellac dry. As the shellac dries, the saturated line will gradually stiffen and you will be able to shape the line further as you may wish, using tweezers or the pins, whatever works for you. (Fingers aren't such a good idea because the shellacked lines will readily stick to your fingers and you may end up with a "tar baby" of string on your fingers.) If, after the shellac hardens, you want to further adjust the coil or fake, you need only apply some alcohol and shellac will soften again until the added alcohol evaporates. When the shellac is completely dry, which will be within a matter of minutes because its alcohol solvent evaporates very quickly, your line will appear as it did before, since the shellac becomes invisible, but it will be stiff and "cemented" into the position you shaped it to. (Blow on to speed up the process, if you want.) You can then remove the pins and carefully peel the line off the plastic wrap, which shouldn't stick too much to the line. and you can then attach the finished coil or fake to the model with glue or a bit more shellac..
     
    This technique can also be used to secure the ends of rigging thread from unraveling and to shape catenaries in things like footropes, or to stiffen rows of reef points so they hang naturally against a sail. Somewhere along the way, many folks have come to use PVA adhesive for similar purposes, but I became familiar with using shellac in the days before PVA became popular and never found watered down PVA to be much use for anything as an alternative to shellac, mainly because I found shellac easier to handle, it has better adhesive properties, and the drying speed of its alcohol solvent is far greater than that of water. Shellac is a perfect sealer for model work. Its archival properties are well-proven, it is readily cleaned up  alcohol, and is is completely safe for man or beast in all respects. I buy white ("clear") shellac (de-waxed if I can get it) by the quart and denatured alcohol by the gallon can (from which I decant it into plastic squirt bottles,) at any paint or hardware store. It's relatively inexpensive, has a relatively infinite shelf-life and a myriad of uses in modeling. It is also completely compatible with all other oil or acrylic coatings which might be applied over it.
     

  9. Like
    Bob Cleek got a reaction from markjay in Advice of rope work   
    The trick with coils, etc. is to make them off the model and then glue them down on the model when they are finished. By running the bitter end of a line beneath the pre-made coil, it can be made to appear to be part of the separately attached coil.
     
    In very small scales, for uniform coils, such as on pin rails, some will drive a couple of nails or pins a sufficient distance apart and wrap a suitable length of line around the pins to form the coil. For faking mooring lines, a similar approach is used.
     
    What I generally do is to take a piece of scrap styrofoam packing sheet stock (always a good idea to keep a few pieces around) and I wrap it in kitchen plastic wrap. (If I want a number of uniform sized coils or fakes, draw a pattern and place the pattern on the piece of styrofoam beneath the plastic wrap.) The plastic wrap will make it easier to remove the finished shaped line from the block when it's dry. Following the pattern seen through the plastic wrap (or not if you don't use a pattern,) I use sewing pins pushed into the styrofoam block to hold the line in place as I want it to look when attached to the model. You can put pins on either side of the line or through the line, however best suits the occasion. 
     
    After the line is pinned to the block, take a paintbrush and saturate the line with clear ("white") shellac. ("Orange" or "amber" shellac, which is also available, has an amber color and will work the same as "clear" shellac, but for most modeling applications, you don't want the color.) The shellac, right out of the can, is the consistency of water and will soak right into the fabric of the line. Only one application is required. Just a touch with a loaded small brush and the line will soak up the shellac. Let it soak in well but don't overdo it.  Now, let the shellac dry. As the shellac dries, the saturated line will gradually stiffen and you will be able to shape the line further as you may wish, using tweezers or the pins, whatever works for you. (Fingers aren't such a good idea because the shellacked lines will readily stick to your fingers and you may end up with a "tar baby" of string on your fingers.) If, after the shellac hardens, you want to further adjust the coil or fake, you need only apply some alcohol and shellac will soften again until the added alcohol evaporates. When the shellac is completely dry, which will be within a matter of minutes because its alcohol solvent evaporates very quickly, your line will appear as it did before, since the shellac becomes invisible, but it will be stiff and "cemented" into the position you shaped it to. (Blow on to speed up the process, if you want.) You can then remove the pins and carefully peel the line off the plastic wrap, which shouldn't stick too much to the line. and you can then attach the finished coil or fake to the model with glue or a bit more shellac..
     
    This technique can also be used to secure the ends of rigging thread from unraveling and to shape catenaries in things like footropes, or to stiffen rows of reef points so they hang naturally against a sail. Somewhere along the way, many folks have come to use PVA adhesive for similar purposes, but I became familiar with using shellac in the days before PVA became popular and never found watered down PVA to be much use for anything as an alternative to shellac, mainly because I found shellac easier to handle, it has better adhesive properties, and the drying speed of its alcohol solvent is far greater than that of water. Shellac is a perfect sealer for model work. Its archival properties are well-proven, it is readily cleaned up  alcohol, and is is completely safe for man or beast in all respects. I buy white ("clear") shellac (de-waxed if I can get it) by the quart and denatured alcohol by the gallon can (from which I decant it into plastic squirt bottles,) at any paint or hardware store. It's relatively inexpensive, has a relatively infinite shelf-life and a myriad of uses in modeling. It is also completely compatible with all other oil or acrylic coatings which might be applied over it.
     

  10. Like
    Bob Cleek got a reaction from mtaylor in Advice of rope work   
    The trick with coils, etc. is to make them off the model and then glue them down on the model when they are finished. By running the bitter end of a line beneath the pre-made coil, it can be made to appear to be part of the separately attached coil.
     
    In very small scales, for uniform coils, such as on pin rails, some will drive a couple of nails or pins a sufficient distance apart and wrap a suitable length of line around the pins to form the coil. For faking mooring lines, a similar approach is used.
     
    What I generally do is to take a piece of scrap styrofoam packing sheet stock (always a good idea to keep a few pieces around) and I wrap it in kitchen plastic wrap. (If I want a number of uniform sized coils or fakes, draw a pattern and place the pattern on the piece of styrofoam beneath the plastic wrap.) The plastic wrap will make it easier to remove the finished shaped line from the block when it's dry. Following the pattern seen through the plastic wrap (or not if you don't use a pattern,) I use sewing pins pushed into the styrofoam block to hold the line in place as I want it to look when attached to the model. You can put pins on either side of the line or through the line, however best suits the occasion. 
     
    After the line is pinned to the block, take a paintbrush and saturate the line with clear ("white") shellac. ("Orange" or "amber" shellac, which is also available, has an amber color and will work the same as "clear" shellac, but for most modeling applications, you don't want the color.) The shellac, right out of the can, is the consistency of water and will soak right into the fabric of the line. Only one application is required. Just a touch with a loaded small brush and the line will soak up the shellac. Let it soak in well but don't overdo it.  Now, let the shellac dry. As the shellac dries, the saturated line will gradually stiffen and you will be able to shape the line further as you may wish, using tweezers or the pins, whatever works for you. (Fingers aren't such a good idea because the shellacked lines will readily stick to your fingers and you may end up with a "tar baby" of string on your fingers.) If, after the shellac hardens, you want to further adjust the coil or fake, you need only apply some alcohol and shellac will soften again until the added alcohol evaporates. When the shellac is completely dry, which will be within a matter of minutes because its alcohol solvent evaporates very quickly, your line will appear as it did before, since the shellac becomes invisible, but it will be stiff and "cemented" into the position you shaped it to. (Blow on to speed up the process, if you want.) You can then remove the pins and carefully peel the line off the plastic wrap, which shouldn't stick too much to the line. and you can then attach the finished coil or fake to the model with glue or a bit more shellac..
     
    This technique can also be used to secure the ends of rigging thread from unraveling and to shape catenaries in things like footropes, or to stiffen rows of reef points so they hang naturally against a sail. Somewhere along the way, many folks have come to use PVA adhesive for similar purposes, but I became familiar with using shellac in the days before PVA became popular and never found watered down PVA to be much use for anything as an alternative to shellac, mainly because I found shellac easier to handle, it has better adhesive properties, and the drying speed of its alcohol solvent is far greater than that of water. Shellac is a perfect sealer for model work. Its archival properties are well-proven, it is readily cleaned up  alcohol, and is is completely safe for man or beast in all respects. I buy white ("clear") shellac (de-waxed if I can get it) by the quart and denatured alcohol by the gallon can (from which I decant it into plastic squirt bottles,) at any paint or hardware store. It's relatively inexpensive, has a relatively infinite shelf-life and a myriad of uses in modeling. It is also completely compatible with all other oil or acrylic coatings which might be applied over it.
     

  11. Like
    Bob Cleek got a reaction from mtaylor in Drawing wood grain pattern with oil paint guide   
    That's a new one on me! I find it hard to believe that shellac's solvent, alcohol, would "melt" oil paint. The highly volatile solvents in lacquer would certainly have that effect, I'd expect, but not shellac. On the other hand, alcohol will thin (i.e. "mellt") most water-based acrylic paints.  
  12. Like
    Bob Cleek got a reaction from Knocklouder in Cordless Micro Drills   
    Speed is a poor substitute for torque.
  13. Like
    Bob Cleek got a reaction from eddiedo867 in Your preferred Satin finish spray?   
    If you are looking for a recommendation for a finish, I guess the first question is, "What do you want to accomplish by spraying flat varnish on your model?" Any finish recommendation will depend in the first instance upon what kind of wood it is and how you want it to look. Since you are going to be portraying bare wood decks and spars, leaving the wood without any coating of varnish would make the most sense. 
     
    "Satin" varnishes, which is to say simply gloss varnish with fine powder mixed in to kill the gloss, add thickness to the finish coating without any corresponding benefit. The flattening compound not only dulls the gloss, but it dulls the "depth" of the finish below it. "Satin" finishes are simply a product which poorly mimics a traditional hand-rubbed finish. 
     
    If you want to change the color of the bare wood, a stain is in order. 
     
    If you want to accent the figuring of the wood (which most would not, since the figuring is likely hugely over-scale) two-pound cut white (clear) shellac will do that neatly and without any gloss whatsoever.
     
    From my personal perspective, I don't understand why folks want to spray "satin finishes" on their models, but I know that they do. Rubbing on something as simple as a 50/50 mixture of boiled linseed oil and turpentine with result in a very nice satin finish with no discernable build-up of the coating. When it comes to painting and varnishing a scale model, "less is more."
     
    Any finish that is too glossy can be rubbed down with rottenstone and/or pumice or even with a Scotch-Brite pad.) This results in a level of gloss (or "matte," depending which direction you are coming from,) which the modeler can control themselves, depending upon how much rubbing they do, There is no finer finish than a hand-rubbed one. The smoothness of a rubbed finish has to be experienced to be believed. The flatness or "satin" appearance is a function of the polishing of the primary reflective surface of the piece, not from finely ground dirt mixed in with all the coats of varnish applied. 
     
    I know some swear by water-based coatings, but it's my opinion that although some are quite good, Limiting the materials list to the fewest basic natural materials possible yields a model of the highest archival quality possible.
  14. Like
    Bob Cleek got a reaction from DaveBaxt in Forming a rabbet   
    Sorry to hear that Mihail is suffering from the sanctions imposed on Russia. At least it sounds like he's not drafted and freezing his butt off in a foxhole in Ukraine. It saddens me to see that sanctions designed to twist the arms of governments too often hurt the little people who have no say in what their governments do.
     
    Micro-carving tools are easily made from tool steel or even broken drill bits. You won't need a lot of expensive tools. Just a propane torch, a hacksaw, and some small files and sandpaper. (If you have a woodturning lathe, you can get fancy with handles, but any old piece of dowel will work.) YouTube has many tutorial videos on making micro-chisels and carving tools. Search YouTube for "how to make micro-chisels" and you'll find lots of these. Below is one of the best.
     
     
     
     
     
  15. Like
    Bob Cleek got a reaction from Boccherini in Forming a rabbet   
    Sorry to hear that Mihail is suffering from the sanctions imposed on Russia. At least it sounds like he's not drafted and freezing his butt off in a foxhole in Ukraine. It saddens me to see that sanctions designed to twist the arms of governments too often hurt the little people who have no say in what their governments do.
     
    Micro-carving tools are easily made from tool steel or even broken drill bits. You won't need a lot of expensive tools. Just a propane torch, a hacksaw, and some small files and sandpaper. (If you have a woodturning lathe, you can get fancy with handles, but any old piece of dowel will work.) YouTube has many tutorial videos on making micro-chisels and carving tools. Search YouTube for "how to make micro-chisels" and you'll find lots of these. Below is one of the best.
     
     
     
     
     
  16. Like
    Bob Cleek got a reaction from Wawona59 in Wonderful Video of the History and Restoration of the C. A. Thayer Lumber Schooner   
    Time to come over to the dark side, guys! She wouldn't be a daunting task to scratch-build a model of her. Why wait for a kit? You can do it. The complete plans are available on line for free, even in TIFF format, so they can be enlarged for modeling use.  These plans were made as part of the Historic American Engineering Record ("HAER") Available from the Library of Congress on line.: Title Sheet - Schooner C.A. THAYER, Hyde Street Pier, San Francisco, San Francisco County, CA | Library of Congress (loc.gov)  
     
    T
  17. Like
    Bob Cleek got a reaction from allanyed in Forming a rabbet   
    Sorry to hear that Mihail is suffering from the sanctions imposed on Russia. At least it sounds like he's not drafted and freezing his butt off in a foxhole in Ukraine. It saddens me to see that sanctions designed to twist the arms of governments too often hurt the little people who have no say in what their governments do.
     
    Micro-carving tools are easily made from tool steel or even broken drill bits. You won't need a lot of expensive tools. Just a propane torch, a hacksaw, and some small files and sandpaper. (If you have a woodturning lathe, you can get fancy with handles, but any old piece of dowel will work.) YouTube has many tutorial videos on making micro-chisels and carving tools. Search YouTube for "how to make micro-chisels" and you'll find lots of these. Below is one of the best.
     
     
     
     
     
  18. Like
    Bob Cleek reacted to Jaager in Forming a rabbet   
    Flat engravers =  HSS gravers - come in a variety of widths.  They are a bit thicker than a chisel  but the cutting edge is what counts.
    Jewelers supply - like Rio Grande or Otto Frei - not exactly an economy item - but probably long term quality.
    The Sam Alfano tool handle with the bronze quick change holders are kind of neat.
  19. Like
    Bob Cleek got a reaction from mtaylor in Forming a rabbet   
    Sorry to hear that Mihail is suffering from the sanctions imposed on Russia. At least it sounds like he's not drafted and freezing his butt off in a foxhole in Ukraine. It saddens me to see that sanctions designed to twist the arms of governments too often hurt the little people who have no say in what their governments do.
     
    Micro-carving tools are easily made from tool steel or even broken drill bits. You won't need a lot of expensive tools. Just a propane torch, a hacksaw, and some small files and sandpaper. (If you have a woodturning lathe, you can get fancy with handles, but any old piece of dowel will work.) YouTube has many tutorial videos on making micro-chisels and carving tools. Search YouTube for "how to make micro-chisels" and you'll find lots of these. Below is one of the best.
     
     
     
     
     
  20. Like
    Bob Cleek got a reaction from thibaultron in Wonderful Video of the History and Restoration of the C. A. Thayer Lumber Schooner   
    Time to come over to the dark side, guys! She wouldn't be a daunting task to scratch-build a model of her. Why wait for a kit? You can do it. The complete plans are available on line for free, even in TIFF format, so they can be enlarged for modeling use.  These plans were made as part of the Historic American Engineering Record ("HAER") Available from the Library of Congress on line.: Title Sheet - Schooner C.A. THAYER, Hyde Street Pier, San Francisco, San Francisco County, CA | Library of Congress (loc.gov)  
     
    T
  21. Like
    Bob Cleek got a reaction from SighingDutchman in Bearding and Rabbet lines   
    No matter how you cut it, cutting the rolling bevel in a planking rabbet (sometimes called a "rebate") is a tedious process that takes some thought and care. You will find lots of theoretical instructions in boat building and modeling books about how to do it using the information that may be developed using lofting techniques. The exact angle of the rabbet can be developed for any point along the rabbet's length from the lofting (or lines drawings) and from that the rabbet, back rabbet, and bearding lines can then be developed and drawn or lofted. These varying angles define the shape of the rolling bevel that forms the rabbet. In small craft and model construction, there's an easier way to cut the rolling bevel without reference to the drawn or lofted the rabbet lines at all. Experienced boat wrights dispense with a lot of the lofting by "building to the boat," as  they say, rather than "to the plans." With the planking rabbets, this means that the angle and depth of the rabbet at any given point along the rabbet is developed using "fit sticks" and battens to define the rabbet lines and the bevel's rolling angles. It's easier done than said.
     
    What you do is frame out your boat or model. Take care, as is always necessary, to fair the frame face bevels. This requires setting up the frames and sanding the faces so that a flat batten laid across the frames in a generally perpendicular relation to the frames, as well as at lesser angles, will always lay flat against the frame faces. (You may need to place temporary blocking between the frames or otherwise secure them well so they don't wobble when you sand across them.) Your frames should be cut and set up as in full size practice, with the corner of the outboard-most side of the face precisely cut and set up on the section lines such that when fairing wood is removed from the forward side of the faces of frames forward of the maximum beam and from the after side of the faces of the frames aft of the maximum beam. The accurately cut frame corner, the forward corner on frames aft of the maximum beam and the aft corner of frames forward of the maximum beam, is the reference point for fairing your frames. Use one batten for marking the faces of the frames and another, with a suitable sheet of sandpaper glued to its face, or a manicurist's emory board, to sand the excess off the faces until they are fair. The batten used for marking is chalked with carpenter's chalk and rubbed against the faces of the frames to mark the high spots. Where the colored carpenter's chalk transfers from the marking batten to the frame faces is where the frame face is too high and needs to be sanded down some more. When the marking batten lies flat in contact with all the frame faces, transferring chalk to the entire frame face, the frame faces are fair.
     
    Now, with your frames faired, take a small stick of wood the same thickness as your planking and cut across at the ends perfectly square, which is called a "fit stick," and place it against the face of a frame and slide it down until the lower back corner of the fit stick (the inboard corner) rests against the keel. Accurately mark the point where the corner of the fit stick and the keel meet. This mark is where your bearding line is at that point.
     
    Then take a second fit stick and place it on top of the first with the first in the position it was in when you marked the bearding line point and slide it down over the first fit stick until its lower back (inboard) corner touches the keel and mark that point. This mark is where your rabbet line is at that point.
     
    Make these two marks at each frame. Spring a batten between all the upper and lower marks on the keel and draw lines through all the marks. These lines will be your bearding and rabbet lines. Extend them out as far as they will go, but, for the moment, they are relevant only for the span from the forward-most frame to the after-most frame.
     
    Now, at each frame, with your two fit sticks stacked as when you marked the lower rabbet line, take a knife or chisel and using the lower edge of the upper fit stick as a guide, cut into the keel at the same angle as the face of the bottom edge of your upper fit stick, i.e. with the flat of your blade against the edge of your lower fit stick. This cut should be as deep as your planking is thick. (This first cut can be easily made with a small circular saw blade on a rotary tool if you know what you're doing. Mark the blade face with a Sharpie to indicate the depth of cut.) Cut down to the point of the rabbet cut you've made from above so that you end up with the back rabbet face of the keel at a right angle to the rabbet line cut.  Test your cut with a fit stick, which, when the rabbet section cut at that frame is done, should lie perfectly fair on the face of the frame with its bottom edge fit perfectly into the rabbet you've cut. Because the angle of your rabbet is defined by the lower edge of the top fit stick and it's depth by the thickness of your planking, there's no need to worry about where the back rabbet line is. You'll develop the back rabbet naturally when the two lines you are cutting to meet at right angles at the bottom of the cut.
     
    Now, you simply "connect the dots" or rabbet "notches" you've created at each frame by carving out the wood in the way of the rabbet and bearding lines between the frames to form a continuous rabbet with a fair rolling bevel.
     
    The stem, deadwood, and stern post are a bit trickier than the sections where the frames are set up on the keel, but the method of marking them and taking the rabbet angles off of fit sticks is the same and shouldn't need much further explanation. The main difference is that a batten of the same thickness as your planking is place across the frame faces, rather than perpendicular to the frame faces, and extended to where its bottom inboard edge touches the stem, deadwood or stern post and is marked there for the bearding line, and then another fit stick batten is placed on the first to find the rabbet line. You will find a chalked marking fit stick batten to be handy again in fairing up the dubbing on the wide deadwood rabbets. These techniques are a lot easier to learn by doing than to explain in writing. 
     
    On a real vessel, cutting the planking rabbets is a very exacting process because the ease of caulking and the watertightness of these seams are dependent upon the perfect fit of these faying surfaces (where the planks and keel touch.) This isn't a big consideration in a model. What's important for a model is only that the visible rabbet lines and the planking are fair and tight. If the angle is off behind the planking and a bit too much wood is removed, it makes no difference because a sliver can always be glued in place to raise the plank to where it has to be and the rest filled with glue, or if too little is removed, the plank face can be sanded fair after it's hung. (The latter being the less preferable. It's generally better to remove wood from behind the plank than from the plank itself.)
     
    This may seem like a tedious exercise and it is, but doing it correctly will make your planking a far easier task, particularly in hull forms where there is considerable twist in the planks at the ends. A final word of caution for the modelers with a machinist's background: This is a hand job. You won't find a way to do it more easily on your mill. Many have tried to devise some sort of jig which would permit cutting these rolling bevel rabbets with saws, routers, or other power tools. As far as I know, and those I know who know a lot more about it than I do, nobody's succeeded. Don't waste a lot of time trying to figure out what nobody else has been able to accomplish. I expect that it could be accomplished, in theory, at least, with very sophisticated CNC technology, but would probably take a lot longer to program and set up than doing it by hand will.
     
    This video of full-sized construction illustrates the method described fairly well:  
     
     
     
  22. Like
    Bob Cleek got a reaction from mtaylor in Wonderful Video of the History and Restoration of the C. A. Thayer Lumber Schooner   
    Time to come over to the dark side, guys! She wouldn't be a daunting task to scratch-build a model of her. Why wait for a kit? You can do it. The complete plans are available on line for free, even in TIFF format, so they can be enlarged for modeling use.  These plans were made as part of the Historic American Engineering Record ("HAER") Available from the Library of Congress on line.: Title Sheet - Schooner C.A. THAYER, Hyde Street Pier, San Francisco, San Francisco County, CA | Library of Congress (loc.gov)  
     
    T
  23. Like
    Bob Cleek got a reaction from Canute in Oil paint varnish help   
    As you probably know, artists' oil paints are formulated to provide the maximum drying time in order to provide the artist with a paint they can work with, moving it around on the canvas for as long as it might take them to complete a painting. Artists oils generally use raw linseed oil (also called "flax seed oil" under which name it can be found in any health food store.) ("Boiled" linseed oil is raw linseed oil to which driers have already been added to speed up the drying process.) The proprietary driers you are using, such as Liquin, do speed up drying time, but nowhere near as much as would be desired for regular painting rather than artists' oil paints. You want the more powerful stuff, generally sold in hardware and paint stores as "Japan drier." Follow the mixing instructions on the Japan drier container. Think of your artists' oils as "concentrated paint, just pigment and linseed oil, which should be considerably thinned with turpentine, mineral spirits, or acetone, (depending on the user's preference... like a barbecue sauce recipe) and Japan drier to speed the polymerization of the linseed oil base. By adding the correct amount of Japan drier, one can accelerate the drying time of an oil paint as much as is desired. It appears from the manufacturer's literature that Liquin is only intended to modify the artists' oil paints within in the much narrower spectrum of drying times required for classic artists' oil painting techniques, rather than for fast drying times appropriate for modeling.
  24. Like
    Bob Cleek reacted to Barryc in Silver soldering   
    Hi sir,
     
    I do a lot of soldering using Tix solder for strong joints that will not be under a lot of stress. It has a low melt point but is extremely strong.
    https://www.micromark.com/Tix-Solder-Pkg-of-20-Three-Inch-Sticks
     
    I use a silver based solder for joints that will be under potentially a lot of stress.
    https://www.micromark.com/Stay-Brite-Silver-Solder
     

     
    I have found that taking a small piece of apporiate (for need) and pound it flat. I then cut a piece to cover the expected solder
    joint and place it between the properly cleaned sides to be solder. Clamp the solder between the ends and apply a small amount of flux and heat. Clamping can be tricky as you want to hold the pieces but not create a "heat sink" that will prevent proper heating. Usually not a problem when using a Torch.
     









     
    I use a combination of Restrictive, Iron and Torch all for different approaches and techniques.

    I hope you find this helpful.
     
    Barry
  25. Like
    Bob Cleek reacted to Captain Slog in Silver soldering   
    I use 'easy' grade silver solder paste from a syringe but applied with a needle for tiny components and succesfully use it on 0.2mm brass wire.
    The paste is sticky and once in place doesn't blow off with the torch.
    Obtained from a jewellers supply shop.
     
    Slog
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