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Jaager

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  1. Like
    Jaager got a reaction from allanyed in Cutty Sark by Richard Dunn - 1/40 scale - scratch built semi-kit prototype   
    I regret that my intent was misunderstood.  I two finger type and tend to leave out a lot of explanation, assuming that my mind can be read.
    For the record,  if I have a negative view about something in logs or technical forums - I keep it to myself.  I do not see a "be careful, you might be walking into a minefield" comment as being negative.  I would want to know.  I guess spending months on an experiment and almost presenting a paper on something that was really artifact, not recognized because of poor controls, has made me too careful about trusting assumptions. 
     
    Wood identification is plenty difficult and regional differences abound.  
    I was trying to suggest that while the silica inclusions and significant tool dulling correlates with your report, the hardness that you find in your stock does not seem to match that reported for the Anigre supplied with some kits?  I have not personally used the species and have no investment either way.  In your place, I would see the hardness factor as a potential red flag when ordering more.  Maybe a PM would have been a better choice to give a warning.
     
    I am not telling you what you should use,  in the way that you took it.  
    I see shipping costs as becoming a significant problem.  Wood has weight and volume.
    There is a cachet around a few species of wood that seems to affect choices.
    In the US, we are at a cost disadvantage for Pyrus communis ( Pear, Swiss Pear ) it is not a domestic species here - I am guessing that it is almost a weed in certain areas of Europe.  The premium that we pay places it as being difficult to justify for high volume use.
    Boxwood (Buxus sempervirens) would be expensive, but it cannot be had for ready money.
    The commonly selected substitute  Castelo  is seeing an imbalance in demand vesus supply.  The cost is becoming usurious here.
     
    I am focused exclusively  on POF at a  larger scale.  The volume  of wood needed for a single hull is in the 10's of board feet.
    I cannot justify paying import prices for framing stock. 
    There are readily available species that will substitute.  They are not a perfect match, but are "close enough for government work".
    For Boxwood - Hard Maple,  for Pear  - Black Cherry.    Birch and certain species of Beech work as well as Hard Maple.
    Right now, they are ~$9 / BF.  So, a  "I want to make sure I have enough"  50 BF is $450.  Keep in mind, that WELL OVER 50% is going to be sawdust and scroll cut discards.
    I find it a bit ....ironic?..  when build logs that celebrate finding that Maple and Cherry work and turnout as well as they do - given that they are a forced substitute - are taken as recommendations for their use in regions of the world where they are expensive imports.  In Europe, where this most often appears, there are much better and lower cost domestic lumber species.
     
    Australia is a bit of a major player here.   Most everything used in North America and Europe is an import there.  I am guessing that the prices are a bit onerous. 
    What I was trying to do:    it was meant as bait to produce a discussion  - or better,  locally informed suggestions for species, domestic for Australia.  Species that can be your substitutes and not pay the significant import costs.  I was thinking that economy and saving money is a GOOD thing.   The bait was for you to jump on the chance to recommend locally harvested lumber that your fellow countrymen can use as  reasonably priced and easy to obtain substitutes.
     
      I was thinking that you might know ways to avoid enriching Maersk et al. and still get suitable lumber.  
     
     
  2. Like
    Jaager got a reaction from mtaylor in Cutty Sark by Richard Dunn - 1/40 scale - scratch built semi-kit prototype   
    I regret that my intent was misunderstood.  I two finger type and tend to leave out a lot of explanation, assuming that my mind can be read.
    For the record,  if I have a negative view about something in logs or technical forums - I keep it to myself.  I do not see a "be careful, you might be walking into a minefield" comment as being negative.  I would want to know.  I guess spending months on an experiment and almost presenting a paper on something that was really artifact, not recognized because of poor controls, has made me too careful about trusting assumptions. 
     
    Wood identification is plenty difficult and regional differences abound.  
    I was trying to suggest that while the silica inclusions and significant tool dulling correlates with your report, the hardness that you find in your stock does not seem to match that reported for the Anigre supplied with some kits?  I have not personally used the species and have no investment either way.  In your place, I would see the hardness factor as a potential red flag when ordering more.  Maybe a PM would have been a better choice to give a warning.
     
    I am not telling you what you should use,  in the way that you took it.  
    I see shipping costs as becoming a significant problem.  Wood has weight and volume.
    There is a cachet around a few species of wood that seems to affect choices.
    In the US, we are at a cost disadvantage for Pyrus communis ( Pear, Swiss Pear ) it is not a domestic species here - I am guessing that it is almost a weed in certain areas of Europe.  The premium that we pay places it as being difficult to justify for high volume use.
    Boxwood (Buxus sempervirens) would be expensive, but it cannot be had for ready money.
    The commonly selected substitute  Castelo  is seeing an imbalance in demand vesus supply.  The cost is becoming usurious here.
     
    I am focused exclusively  on POF at a  larger scale.  The volume  of wood needed for a single hull is in the 10's of board feet.
    I cannot justify paying import prices for framing stock. 
    There are readily available species that will substitute.  They are not a perfect match, but are "close enough for government work".
    For Boxwood - Hard Maple,  for Pear  - Black Cherry.    Birch and certain species of Beech work as well as Hard Maple.
    Right now, they are ~$9 / BF.  So, a  "I want to make sure I have enough"  50 BF is $450.  Keep in mind, that WELL OVER 50% is going to be sawdust and scroll cut discards.
    I find it a bit ....ironic?..  when build logs that celebrate finding that Maple and Cherry work and turnout as well as they do - given that they are a forced substitute - are taken as recommendations for their use in regions of the world where they are expensive imports.  In Europe, where this most often appears, there are much better and lower cost domestic lumber species.
     
    Australia is a bit of a major player here.   Most everything used in North America and Europe is an import there.  I am guessing that the prices are a bit onerous. 
    What I was trying to do:    it was meant as bait to produce a discussion  - or better,  locally informed suggestions for species, domestic for Australia.  Species that can be your substitutes and not pay the significant import costs.  I was thinking that economy and saving money is a GOOD thing.   The bait was for you to jump on the chance to recommend locally harvested lumber that your fellow countrymen can use as  reasonably priced and easy to obtain substitutes.
     
      I was thinking that you might know ways to avoid enriching Maersk et al. and still get suitable lumber.  
     
     
  3. Like
    Jaager got a reaction from mtaylor in Cutty Sark by Richard Dunn - 1/40 scale - scratch built semi-kit prototype   
    You may wish to verify the identity of the wood that you are calling Anigre.
    My only purpose for questioning this,  is if you order a resupply from a different vendor,  what is supplied could be an unpleasant surprise.
    What leads me to question your identification is:
    The Wood Database gives Anigre a Janka rating of 990
    Pear 1660
    Obeche  440
    Basswood  410
    Lime  700
    Castelo  1810
     
    For scratch builds using POF - I think the economical and practical choice is to use a domestic species with scale appropriate grain and closed pores.
    The only local lumber there - based on the US based Wood Database appears to be  Tasmanian Myrtle ( Myrtle Beech, Silver Beech ) Janka 1310.
    Of course any immigrant fruitwood species is likely to be ideal. 
  4. Like
    Jaager got a reaction from allanyed in Cutty Sark by Richard Dunn - 1/40 scale - scratch built semi-kit prototype   
    You may wish to verify the identity of the wood that you are calling Anigre.
    My only purpose for questioning this,  is if you order a resupply from a different vendor,  what is supplied could be an unpleasant surprise.
    What leads me to question your identification is:
    The Wood Database gives Anigre a Janka rating of 990
    Pear 1660
    Obeche  440
    Basswood  410
    Lime  700
    Castelo  1810
     
    For scratch builds using POF - I think the economical and practical choice is to use a domestic species with scale appropriate grain and closed pores.
    The only local lumber there - based on the US based Wood Database appears to be  Tasmanian Myrtle ( Myrtle Beech, Silver Beech ) Janka 1310.
    Of course any immigrant fruitwood species is likely to be ideal. 
  5. Like
    Jaager got a reaction from Canute in How long until dry enough to work..?   
    I follow those Apple choices too.   The Hearne is expensive and does not look clear enough to use for framing stock - which is what I would use a large volume for.
    Framing uses an unbelievable wood volume - even at 1:60.
     
    A yellow variety of Holly is a weed on the family plantation in Caroline county  but not as much as the Sweet Gum.  I do not remember seeing much of it in central Kentucky.
    The Apple would probably be easier to find the Eastern mountains.
  6. Like
    Jaager got a reaction from Canute in How long until dry enough to work..?   
    Back when I was doing all that, I had 5 acres in Delaney Woods, Jessamine Co.  I worked at Cooper Drive VAMC  (It was 400 beds then). 
    Red Maple ain't  Sugar Maple (Hard  -  Rock)  Acer saccharum .  I use Hard Maple exclusively from the Acer family.
    Probably not in business anymore, but I bought a supply of Hard Maple and Black Cherry from Homer Gregeory  in Morehead.  I also bought too much Sycamore - back before I learned that Underhill was taking about a European Maple species - not the American Plantus occidentalis junk that I bought.  They were a whole sale country sawmill then.  Rough ricks in the weather - it was all well seasoned - I got 4x4 - today I would get 8x4.
    If I were young and where you are, I would make friends with the county extension network and try to find farmers with healthy but past production full size Apple trees.  Work a deal to get some logs . Who knows, maybe you could get some Holly, Dogwood, or Hornbeam that way?  It is a big regret that I did not try that when I could.  Too much grafted to easy pick size now.  For Holly  it is a fight to beat the Blue Mold before it is seasoned.  I now realize that for us, even the worst Blue Mold infected wood is perfectly OK for our use.  It is just as sound.  It is just grey.  That is a more perfect deck color than the commercial snow white Holly.  No species of wood used for decks is white and the grey mimics the effect of sun and seawater.  The white has become ridiculously expensive and the stuff that is perfect of us  is probably being burned. 
     
  7. Like
    Jaager got a reaction from Canute in How long until dry enough to work..?   
    You do not provide your location here on Terra, but the straight narrow trunk looks like a small Hard Maple I lost to a tornado - one of the bunch that destroyed Xenia, OH.
    My local Hardwood supplier has kiln dried Hard Maple.  There is also Soft Maple - which I despise - I prefer Yellow Poplar for stock where a low density hardwood does the job.   Seasoning and processing logs into usable lumber is a lot of work, ages expensive tools, and takes up time and space.  I see it as prudent to only expend that effort on wood species that are either unavailable any other way, or very expensive.  And expensive is a toss up.  Hard Maple and Black Cherry are both available here in the eastern US and are less than $10 /BF.  I have and use a lot of both,  but processing either from a log would cost me way more than $10 - all factors included.
    No,  but my present situation - age, hernia, physical location (as far from rural as it gets in Virginia and actually on The Bay) places me out of the running any more.  The Bradford Pear was street trash on Pretty Lake Blvd. after the last hurricane.  I had to tie a rope around the big log and drag it up the street to my condo behind my "Z".  It was both too heavy to lift and I am lucky that the Z has enough room for food resupply.  No way that log would fit.
    I tried to buy an Alaskan Mill or something like it - from Silvo Hardware.   I waited and waited, then one day I got a letter stating than I was a party in a bankruptcy proceeding.  
    I have a 16" Shindaiwa  buried in the back of a closet - everything rubber is probably oxidized to brittle by now - and back when I was getting all this, there was a type of chain available that was pretty aggressive - if I had gotten the mill, I probably would have bought it - but then it must have set some regulator hair on fire, because it disappeared from the market.
  8. Like
    Jaager reacted to Roger Pellett in Favorite hull and deck planking wood   
    I personally feel that unpainted models are overdone.  I agree that wood left naturally is  appropriate for true Dockyard style models with exposed framing built from the big three woods- boxwood, pear, holly.  On the other hand there is something about unpainted POB kit models that makes them look like either “gift shop specials” or toys.
     
    My models are long term projects. They involve years of dreaming, mental construction and planning before I pick up a tool.  Part of this involves an artistic vision involving display of the model.  This includes selection of materials for baseboard rd and case.  All but one of my models are painted, except where the actual component on the real vessel was finished bright.
     
    Roger.
  9. Like
    Jaager got a reaction from mtaylor in How long until dry enough to work..?   
    Back when I was doing all that, I had 5 acres in Delaney Woods, Jessamine Co.  I worked at Cooper Drive VAMC  (It was 400 beds then). 
    Red Maple ain't  Sugar Maple (Hard  -  Rock)  Acer saccharum .  I use Hard Maple exclusively from the Acer family.
    Probably not in business anymore, but I bought a supply of Hard Maple and Black Cherry from Homer Gregeory  in Morehead.  I also bought too much Sycamore - back before I learned that Underhill was taking about a European Maple species - not the American Plantus occidentalis junk that I bought.  They were a whole sale country sawmill then.  Rough ricks in the weather - it was all well seasoned - I got 4x4 - today I would get 8x4.
    If I were young and where you are, I would make friends with the county extension network and try to find farmers with healthy but past production full size Apple trees.  Work a deal to get some logs . Who knows, maybe you could get some Holly, Dogwood, or Hornbeam that way?  It is a big regret that I did not try that when I could.  Too much grafted to easy pick size now.  For Holly  it is a fight to beat the Blue Mold before it is seasoned.  I now realize that for us, even the worst Blue Mold infected wood is perfectly OK for our use.  It is just as sound.  It is just grey.  That is a more perfect deck color than the commercial snow white Holly.  No species of wood used for decks is white and the grey mimics the effect of sun and seawater.  The white has become ridiculously expensive and the stuff that is perfect of us  is probably being burned. 
     
  10. Like
    Jaager got a reaction from mtaylor in How long until dry enough to work..?   
    You do not provide your location here on Terra, but the straight narrow trunk looks like a small Hard Maple I lost to a tornado - one of the bunch that destroyed Xenia, OH.
    My local Hardwood supplier has kiln dried Hard Maple.  There is also Soft Maple - which I despise - I prefer Yellow Poplar for stock where a low density hardwood does the job.   Seasoning and processing logs into usable lumber is a lot of work, ages expensive tools, and takes up time and space.  I see it as prudent to only expend that effort on wood species that are either unavailable any other way, or very expensive.  And expensive is a toss up.  Hard Maple and Black Cherry are both available here in the eastern US and are less than $10 /BF.  I have and use a lot of both,  but processing either from a log would cost me way more than $10 - all factors included.
    No,  but my present situation - age, hernia, physical location (as far from rural as it gets in Virginia and actually on The Bay) places me out of the running any more.  The Bradford Pear was street trash on Pretty Lake Blvd. after the last hurricane.  I had to tie a rope around the big log and drag it up the street to my condo behind my "Z".  It was both too heavy to lift and I am lucky that the Z has enough room for food resupply.  No way that log would fit.
    I tried to buy an Alaskan Mill or something like it - from Silvo Hardware.   I waited and waited, then one day I got a letter stating than I was a party in a bankruptcy proceeding.  
    I have a 16" Shindaiwa  buried in the back of a closet - everything rubber is probably oxidized to brittle by now - and back when I was getting all this, there was a type of chain available that was pretty aggressive - if I had gotten the mill, I probably would have bought it - but then it must have set some regulator hair on fire, because it disappeared from the market.
  11. Like
    Jaager got a reaction from mtaylor in How long until dry enough to work..?   
    I follow those Apple choices too.   The Hearne is expensive and does not look clear enough to use for framing stock - which is what I would use a large volume for.
    Framing uses an unbelievable wood volume - even at 1:60.
     
    A yellow variety of Holly is a weed on the family plantation in Caroline county  but not as much as the Sweet Gum.  I do not remember seeing much of it in central Kentucky.
    The Apple would probably be easier to find the Eastern mountains.
  12. Like
    Jaager got a reaction from Canute in How long until dry enough to work..?   
    I have a bit of it.  Some is on the floor of my garage - dry and waiting to be processed into billets.  It is excellent for our use.  I love it.  Not near as much as Apple, but it is wonder stuff.  Differences from Pyrus communis is that it is more brown than pink and it has a waxed sheen to it.  There is some difference in the color of Spring and Summer wood and each can be fairly wide - the tree is fairly fast growing.
     
    I used an electric chain saw (el cheepo HF) to bisect the largest - to speed seasoning and remove the pith. There was significant loss to kerf and a freehand chainsaw rip cut is dangerous.  An Alaska mill is both safer and produces more precise planks.  A log is difficult to place so that it does not move and the end of the bar does not have the teeth digging up soil.  The electric has lower power so the kickback force is easier to resist.  Beyond a certain thickness, a completely round log can be a real challenge to resaw on a bandsaw.  About the best that a tablesaw can do is 2" and a rolling log is a nightmare to rip cut.
     
    I used left over enamel paint to make thick coats on the cut ends - too much checking if you do not seal the ends.  It dries faster if it is debarked and it removes carpenter ants and wood boring larvae eggs.  Seasoning is usually one year per inch of thickness.
    For a lot of tree species, the branches are at ~ 90 degrees.  This offers the possibility of getting compass timber.  Unfortunately - Bradford Pear branches - splits into two equal forks mostly at a sharp "Y" .  This does not make for much useful compass timber.  For the tree itself, it means that the tree tends split like pealing a banana when exposed to high winds and the tree is old enough that there is a significant diameter ( weight).
  13. Like
    Jaager reacted to Bob Cleek in How long until dry enough to work..?   
    Have you ever tried running a circular saw down the length of a log to cut as deep a kerf as possible and then splitting the log with wedges and a maul? I've found success with the method. The flat side of a split can then be run through a jointer (or planed) and that will produce a flat surface to start milling billets on a bandsaw. It also has the advantage of yielding a flat side that runs parallel to the grain without runout.
     
    I second the recommendation of an Alaskan mill. The do very good work for the use intended, although a suitably powered chainsaw is highly advised, as is the use of a proper ripping chain. The Granberg "Alaskan" chainsaw mill was invented by the late Elof Granberg, a friend and sailing buddy of mine. It's a very well-made tool that's stood the test of time and, for what it can accomplish, very reasonably priced. Elof's son now runs the family-owned Grandberg International company.  Interestingly, Elof started Grandberg International to manufacture and market hospital bed equipment such as the metal framing used to mount IV bottles, elevate leg casts and hang "pull up" bars. He was an avid sailor and woodworker and he figured there had to be a "better mouse trap" for sharpening his chainsaw. He came up with a small 12 VDC rotary tool that spun a small carbide grinding drum sized to fit the chain tooth's gullet and could be plugged into a pickup truck cigarette lighter for use in the field. As the saying goes, "The rest was history." The Granberg chain sharpener took off and soon afterwards he invented the Alaskan(tm) Sawmill that really put Granberg into the chainsaw accessory business for good. 
     
  14. Like
    Jaager got a reaction from mtaylor in Vertical Scarf Joints on Keels   
    I have it in mind that the English keel scarphs would be a vertical line seen from the side and a elongated "Z" seen from the top.
    The French method was 90 degrees different - a horizontal line seen from the top and the elongated "Z" seen from the side.
    To me, that means that the scarph on an English can be faked with a simple butt joint - the false keel would hide the "Z".
     
    If I have it correct, then the rectangle with the "X"  indicates two things:  where the scarph is  and how long it is.
     
    I guess that North American practice could be either one - I see heavy Frog influence here as well as English.  My bet is that which ever method was more efficient and less labor intensive was preferred at each step.
  15. Like
    Jaager got a reaction from tmj in Vertical Scarf Joints on Keels   
    I have it in mind that the English keel scarphs would be a vertical line seen from the side and a elongated "Z" seen from the top.
    The French method was 90 degrees different - a horizontal line seen from the top and the elongated "Z" seen from the side.
    To me, that means that the scarph on an English can be faked with a simple butt joint - the false keel would hide the "Z".
     
    If I have it correct, then the rectangle with the "X"  indicates two things:  where the scarph is  and how long it is.
     
    I guess that North American practice could be either one - I see heavy Frog influence here as well as English.  My bet is that which ever method was more efficient and less labor intensive was preferred at each step.
  16. Like
    Jaager got a reaction from mtaylor in How long until dry enough to work..?   
    I have a bit of it.  Some is on the floor of my garage - dry and waiting to be processed into billets.  It is excellent for our use.  I love it.  Not near as much as Apple, but it is wonder stuff.  Differences from Pyrus communis is that it is more brown than pink and it has a waxed sheen to it.  There is some difference in the color of Spring and Summer wood and each can be fairly wide - the tree is fairly fast growing.
     
    I used an electric chain saw (el cheepo HF) to bisect the largest - to speed seasoning and remove the pith. There was significant loss to kerf and a freehand chainsaw rip cut is dangerous.  An Alaska mill is both safer and produces more precise planks.  A log is difficult to place so that it does not move and the end of the bar does not have the teeth digging up soil.  The electric has lower power so the kickback force is easier to resist.  Beyond a certain thickness, a completely round log can be a real challenge to resaw on a bandsaw.  About the best that a tablesaw can do is 2" and a rolling log is a nightmare to rip cut.
     
    I used left over enamel paint to make thick coats on the cut ends - too much checking if you do not seal the ends.  It dries faster if it is debarked and it removes carpenter ants and wood boring larvae eggs.  Seasoning is usually one year per inch of thickness.
    For a lot of tree species, the branches are at ~ 90 degrees.  This offers the possibility of getting compass timber.  Unfortunately - Bradford Pear branches - splits into two equal forks mostly at a sharp "Y" .  This does not make for much useful compass timber.  For the tree itself, it means that the tree tends split like pealing a banana when exposed to high winds and the tree is old enough that there is a significant diameter ( weight).
  17. Like
    Jaager got a reaction from allanyed in Vertical Scarf Joints on Keels   
    I have it in mind that the English keel scarphs would be a vertical line seen from the side and a elongated "Z" seen from the top.
    The French method was 90 degrees different - a horizontal line seen from the top and the elongated "Z" seen from the side.
    To me, that means that the scarph on an English can be faked with a simple butt joint - the false keel would hide the "Z".
     
    If I have it correct, then the rectangle with the "X"  indicates two things:  where the scarph is  and how long it is.
     
    I guess that North American practice could be either one - I see heavy Frog influence here as well as English.  My bet is that which ever method was more efficient and less labor intensive was preferred at each step.
  18. Like
    Jaager got a reaction from bruce d in Vertical Scarf Joints on Keels   
    I have it in mind that the English keel scarphs would be a vertical line seen from the side and a elongated "Z" seen from the top.
    The French method was 90 degrees different - a horizontal line seen from the top and the elongated "Z" seen from the side.
    To me, that means that the scarph on an English can be faked with a simple butt joint - the false keel would hide the "Z".
     
    If I have it correct, then the rectangle with the "X"  indicates two things:  where the scarph is  and how long it is.
     
    I guess that North American practice could be either one - I see heavy Frog influence here as well as English.  My bet is that which ever method was more efficient and less labor intensive was preferred at each step.
  19. Like
    Jaager got a reaction from aaronc in How long until dry enough to work..?   
    I have a bit of it.  Some is on the floor of my garage - dry and waiting to be processed into billets.  It is excellent for our use.  I love it.  Not near as much as Apple, but it is wonder stuff.  Differences from Pyrus communis is that it is more brown than pink and it has a waxed sheen to it.  There is some difference in the color of Spring and Summer wood and each can be fairly wide - the tree is fairly fast growing.
     
    I used an electric chain saw (el cheepo HF) to bisect the largest - to speed seasoning and remove the pith. There was significant loss to kerf and a freehand chainsaw rip cut is dangerous.  An Alaska mill is both safer and produces more precise planks.  A log is difficult to place so that it does not move and the end of the bar does not have the teeth digging up soil.  The electric has lower power so the kickback force is easier to resist.  Beyond a certain thickness, a completely round log can be a real challenge to resaw on a bandsaw.  About the best that a tablesaw can do is 2" and a rolling log is a nightmare to rip cut.
     
    I used left over enamel paint to make thick coats on the cut ends - too much checking if you do not seal the ends.  It dries faster if it is debarked and it removes carpenter ants and wood boring larvae eggs.  Seasoning is usually one year per inch of thickness.
    For a lot of tree species, the branches are at ~ 90 degrees.  This offers the possibility of getting compass timber.  Unfortunately - Bradford Pear branches - splits into two equal forks mostly at a sharp "Y" .  This does not make for much useful compass timber.  For the tree itself, it means that the tree tends split like pealing a banana when exposed to high winds and the tree is old enough that there is a significant diameter ( weight).
  20. Like
    Jaager got a reaction from mtaylor in Seeking input on case refinishing   
    No, I have not.  I bought a large green and a large blue single tile from Home Depot in the late 90's for the heck of it.  I do not remember to price being all that prohibitive.
    It is just another armchair thought experiment.
  21. Like
    Jaager got a reaction from mtaylor in Seeking input on case refinishing   
    I have been imagining using sea green or blue marble tile as a base.  It does increase the weight significantly, but it sure ain't going to tip over very easily.
    It would be a chance to use the diamond hole boring bits from American Surplus.
     
    A dark Rosewood dye on the frame?
  22. Like
    Jaager got a reaction from mtaylor in How shall I fix this Swampscott Dory?   
    Isopropyl alcohol - the 91% first aid stuff - will debond PVA and alcohol does not swell the wood and dries fairly quickly.
    PVA is not sensitive to acetone,  but the hated CA is.  Duco nitrocellulose is.
    Hide glue is completely denatured by hot ethanol.
    I use Titebond II (a yellow PVA) - with is water resistant - because we live on a water planet.  Titebond III ( an amber PVA) is waterproof.
     
    A flat board wider and longer than the dory.
    Draw a center line the length of the board,
    A block of wood about 1/4" thick -  cut one end at the same angle as the slope of the transom.
    A couple of holes - counter sunk under the base board and drilled thru the block can be used for threaded bolts to hold the transom support block - If the holes are a tad larger in diameter than the bolts, there will be some play to allow adjustment to square before the washered wingnuts tighten it to the baseboard.
     
    Fix it to the base at one end.  The slope and flat edge of the block will support the transom at the angle cut and if mounted correctly square to the midline.
    A similar block can be cut to match the stem and fix it square.
     
    I would use Dritz 3009 1 3/4" quilting pins - at #70 hole is tight enough, but does not freeze the pin.   A bamboo trunnel can fill the holes or a brass pin - do not leave the steel pins in the model - they will rust,
     
    Outboard blocks can be placed outside the dory body at each rib location . if placed square a wood strip connecting them will hold each rib perpendicular and vertical.
     
    Once all that is setup and bonded the fore and aft blocks can be removed and the side blocks used to secure the inverted hull.
     
    Use a curling iron - a rheostat may control the heat - to bend the planking - only heat is needed - water just swells the wood and it does not return the wood to its greenwood state - Prebending allows for an easier glue bond - no resisting forces.
     
    With a jig this involved, you can go into the mass produced dory model business. 
     
    If you know the dimensions of any future models, the baseboard can be cut large enough for their use.
  23. Like
    Jaager got a reaction from Ryland Craze in How shall I fix this Swampscott Dory?   
    Isopropyl alcohol - the 91% first aid stuff - will debond PVA and alcohol does not swell the wood and dries fairly quickly.
    PVA is not sensitive to acetone,  but the hated CA is.  Duco nitrocellulose is.
    Hide glue is completely denatured by hot ethanol.
    I use Titebond II (a yellow PVA) - with is water resistant - because we live on a water planet.  Titebond III ( an amber PVA) is waterproof.
     
    A flat board wider and longer than the dory.
    Draw a center line the length of the board,
    A block of wood about 1/4" thick -  cut one end at the same angle as the slope of the transom.
    A couple of holes - counter sunk under the base board and drilled thru the block can be used for threaded bolts to hold the transom support block - If the holes are a tad larger in diameter than the bolts, there will be some play to allow adjustment to square before the washered wingnuts tighten it to the baseboard.
     
    Fix it to the base at one end.  The slope and flat edge of the block will support the transom at the angle cut and if mounted correctly square to the midline.
    A similar block can be cut to match the stem and fix it square.
     
    I would use Dritz 3009 1 3/4" quilting pins - at #70 hole is tight enough, but does not freeze the pin.   A bamboo trunnel can fill the holes or a brass pin - do not leave the steel pins in the model - they will rust,
     
    Outboard blocks can be placed outside the dory body at each rib location . if placed square a wood strip connecting them will hold each rib perpendicular and vertical.
     
    Once all that is setup and bonded the fore and aft blocks can be removed and the side blocks used to secure the inverted hull.
     
    Use a curling iron - a rheostat may control the heat - to bend the planking - only heat is needed - water just swells the wood and it does not return the wood to its greenwood state - Prebending allows for an easier glue bond - no resisting forces.
     
    With a jig this involved, you can go into the mass produced dory model business. 
     
    If you know the dimensions of any future models, the baseboard can be cut large enough for their use.
  24. Like
    Jaager got a reaction from JacquesCousteau in How shall I fix this Swampscott Dory?   
    Isopropyl alcohol - the 91% first aid stuff - will debond PVA and alcohol does not swell the wood and dries fairly quickly.
    PVA is not sensitive to acetone,  but the hated CA is.  Duco nitrocellulose is.
    Hide glue is completely denatured by hot ethanol.
    I use Titebond II (a yellow PVA) - with is water resistant - because we live on a water planet.  Titebond III ( an amber PVA) is waterproof.
     
    A flat board wider and longer than the dory.
    Draw a center line the length of the board,
    A block of wood about 1/4" thick -  cut one end at the same angle as the slope of the transom.
    A couple of holes - counter sunk under the base board and drilled thru the block can be used for threaded bolts to hold the transom support block - If the holes are a tad larger in diameter than the bolts, there will be some play to allow adjustment to square before the washered wingnuts tighten it to the baseboard.
     
    Fix it to the base at one end.  The slope and flat edge of the block will support the transom at the angle cut and if mounted correctly square to the midline.
    A similar block can be cut to match the stem and fix it square.
     
    I would use Dritz 3009 1 3/4" quilting pins - at #70 hole is tight enough, but does not freeze the pin.   A bamboo trunnel can fill the holes or a brass pin - do not leave the steel pins in the model - they will rust,
     
    Outboard blocks can be placed outside the dory body at each rib location . if placed square a wood strip connecting them will hold each rib perpendicular and vertical.
     
    Once all that is setup and bonded the fore and aft blocks can be removed and the side blocks used to secure the inverted hull.
     
    Use a curling iron - a rheostat may control the heat - to bend the planking - only heat is needed - water just swells the wood and it does not return the wood to its greenwood state - Prebending allows for an easier glue bond - no resisting forces.
     
    With a jig this involved, you can go into the mass produced dory model business. 
     
    If you know the dimensions of any future models, the baseboard can be cut large enough for their use.
  25. Like
    Jaager got a reaction from Canute in How shall I fix this Swampscott Dory?   
    Isopropyl alcohol - the 91% first aid stuff - will debond PVA and alcohol does not swell the wood and dries fairly quickly.
    PVA is not sensitive to acetone,  but the hated CA is.  Duco nitrocellulose is.
    Hide glue is completely denatured by hot ethanol.
    I use Titebond II (a yellow PVA) - with is water resistant - because we live on a water planet.  Titebond III ( an amber PVA) is waterproof.
     
    A flat board wider and longer than the dory.
    Draw a center line the length of the board,
    A block of wood about 1/4" thick -  cut one end at the same angle as the slope of the transom.
    A couple of holes - counter sunk under the base board and drilled thru the block can be used for threaded bolts to hold the transom support block - If the holes are a tad larger in diameter than the bolts, there will be some play to allow adjustment to square before the washered wingnuts tighten it to the baseboard.
     
    Fix it to the base at one end.  The slope and flat edge of the block will support the transom at the angle cut and if mounted correctly square to the midline.
    A similar block can be cut to match the stem and fix it square.
     
    I would use Dritz 3009 1 3/4" quilting pins - at #70 hole is tight enough, but does not freeze the pin.   A bamboo trunnel can fill the holes or a brass pin - do not leave the steel pins in the model - they will rust,
     
    Outboard blocks can be placed outside the dory body at each rib location . if placed square a wood strip connecting them will hold each rib perpendicular and vertical.
     
    Once all that is setup and bonded the fore and aft blocks can be removed and the side blocks used to secure the inverted hull.
     
    Use a curling iron - a rheostat may control the heat - to bend the planking - only heat is needed - water just swells the wood and it does not return the wood to its greenwood state - Prebending allows for an easier glue bond - no resisting forces.
     
    With a jig this involved, you can go into the mass produced dory model business. 
     
    If you know the dimensions of any future models, the baseboard can be cut large enough for their use.
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