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KeithAug
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KeithAug reacted to tadheus in La Salamandre by tadheus - 1:24
Continuation.
The beginning of the relation is available at this address:
http://5500.forumact...ndre-1-24#66516
Regards, Pawel
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KeithAug got a reaction from Nirvana in Altair 1931 by KeithAug - FINISHED - Scale 1:32 - schooner
I am nearing completion of the hull second planking so a few photos to show progress. By this stage all the remaining planks are parallel so the job is becoming much easier. You can see that I have had to add a couple of wedge pieces to fill out the back of the keel.
I have started looking for fill in jobs while the glue dries on the last plank. Here I have planked the stern.
I have also started doing a bit of rough sanding to get the hull planks smooth.
I also sanded the stem ready to lay up the longitudinal planks from which stem profile is shaped.
Only about 8 planks to go before the hull planking is complete.
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KeithAug got a reaction from Omega1234 in Altair 1931 by KeithAug - FINISHED - Scale 1:32 - schooner
I am nearing completion of the hull second planking so a few photos to show progress. By this stage all the remaining planks are parallel so the job is becoming much easier. You can see that I have had to add a couple of wedge pieces to fill out the back of the keel.
I have started looking for fill in jobs while the glue dries on the last plank. Here I have planked the stern.
I have also started doing a bit of rough sanding to get the hull planks smooth.
I also sanded the stem ready to lay up the longitudinal planks from which stem profile is shaped.
Only about 8 planks to go before the hull planking is complete.
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KeithAug got a reaction from thomaslambo in Altair 1931 by KeithAug - FINISHED - Scale 1:32 - schooner
I am nearing completion of the hull second planking so a few photos to show progress. By this stage all the remaining planks are parallel so the job is becoming much easier. You can see that I have had to add a couple of wedge pieces to fill out the back of the keel.
I have started looking for fill in jobs while the glue dries on the last plank. Here I have planked the stern.
I have also started doing a bit of rough sanding to get the hull planks smooth.
I also sanded the stem ready to lay up the longitudinal planks from which stem profile is shaped.
Only about 8 planks to go before the hull planking is complete.
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KeithAug got a reaction from Julie Mo in Altair 1931 by KeithAug - FINISHED - Scale 1:32 - schooner
I am nearing completion of the hull second planking so a few photos to show progress. By this stage all the remaining planks are parallel so the job is becoming much easier. You can see that I have had to add a couple of wedge pieces to fill out the back of the keel.
I have started looking for fill in jobs while the glue dries on the last plank. Here I have planked the stern.
I have also started doing a bit of rough sanding to get the hull planks smooth.
I also sanded the stem ready to lay up the longitudinal planks from which stem profile is shaped.
Only about 8 planks to go before the hull planking is complete.
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KeithAug got a reaction from Nirvana in Altair 1931 by KeithAug - FINISHED - Scale 1:32 - schooner
Hello Brian
The plans were bought from Cornwall Model Boats. www.cornwallmodelboats.co.uk. They sell a wide range of model boat plans and ship worldwide.
Thank you for the positive comments.
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KeithAug got a reaction from Nirvana in Altair 1931 by KeithAug - FINISHED - Scale 1:32 - schooner
Tom,
Yes hand tools only. Power tools were limited to a mini craft drill, a Black and Decker hand drill and a soldering iron. I didn't even have a power sander. I managed to make a lot of the circular parts out of nesting brass tubes - I got a huge bag of offcuts from a local model shop. What little turning I needed to do was done with the black and decker and various files. I bought the frigates props / shafts / rudders but apart from that all the other metalwork was hand made. That said I don't think I would ever want to do without a lathe and mill now. Both were bought 4 years ago and I rely on them a lot.
I did buy planking pre cut - but this was an expensive option and now I cut my own - as illustrated earlier in my build log.
I have now adopted a policy of if If I need a power tool I buy it or make it, life as a result is much easier.
Tom / Jorgen
Thank you for your kind comments.
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KeithAug got a reaction from Zarkon in Altair 1931 by KeithAug - FINISHED - Scale 1:32 - schooner
Hi Jorgen
Thanks of the feedback.
You clearly have skill - with practice you will be soon be achieving the quality of work you aspire to.
For many years I had relatively simple tools - here are a couple of models I produced with only hand tools and a model makers hand drill.
The tug was my first model - a kit.
The frigate was my second - scratch build
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KeithAug got a reaction from Piet in La Salamandre by tadheus - 1:24
Tadheus
lovely work and very realistic.
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KeithAug got a reaction from cabrapente in Altair 1931 by KeithAug - FINISHED - Scale 1:32 - schooner
Hi Jorgen
Thanks of the feedback.
You clearly have skill - with practice you will be soon be achieving the quality of work you aspire to.
For many years I had relatively simple tools - here are a couple of models I produced with only hand tools and a model makers hand drill.
The tug was my first model - a kit.
The frigate was my second - scratch build
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KeithAug got a reaction from cabrapente in Altair 1931 by KeithAug - FINISHED - Scale 1:32 - schooner
Appart from doing other stuff I have found a bit of time to progress the planking.
On my last post I had started attaching the taper planks.
I progressed the taper planks which started having the desired effect of filling the area of maximum beam while limiting the degree of bending in the stiff direction of the plank. I also planked the end of the keel in front of the rudder position.
You may remember form a previous post I had marked the hull and identified where i would get to if I had pressed on with parallel planking (red line). Also you may recall that i wanted to end up at the black line. The plan worked reasonably well as illustrated by the photographs.
I did have to do a fairly complicated adjustment by letting in a fillet pieces at one position on each side. See 4th plank down on the next photo.
Much of the tricky planking is now done and most of the remaining planks will parallel, supplemented by finely tapered wedges to fill out the rear of keel.
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KeithAug got a reaction from KORTES in Altair 1931 by KeithAug - FINISHED - Scale 1:32 - schooner
So here is my solution to creating uniform shallow taper planks.
I have a home made thickness sander attachment for my milling machine as follows:-
The oak plank up-stand is pivoted about the end towards the front of the photo with coarse adjustment being achieved by the screw adjuster to the right of the oak plank. Fine adjustment down to thousands of an inch is achieved by using the mill table adjustment. It all works very well for sanding parallel planks.
I realised I could use the thickness sander to taper sand by setting the oak plank at the desired angle and sticking the workpiece to the the oak plank using double sided tape. Then by traversing the workpiece past the sanding drum (using the mill table) I was able taper sand the workpiece. I should explain that the final planks were going to be slit from the tapered workpiece using the table saw.
I wanted a taper of about 1/3 of a degree over the 15 inch length of the workpiece - which equates to the narrow end being about 1/2 the thickness of the wide end.
This photo shows the tapered workpiece laid alongside a parallel workpiece.
And the dimensions achieved.
The final photos show the tapered planks being attached to the hull.
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KeithAug got a reaction from Nirvana in Altair 1931 by KeithAug - FINISHED - Scale 1:32 - schooner
For interest - here is what the real thing looks like.
Hopefully the model will do the original justice.
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KeithAug got a reaction from KORTES in Altair 1931 by KeithAug - FINISHED - Scale 1:32 - schooner
Thank you Mark and John for your supportive comments.
I have been progressed a little with the hull 2nd planking.
I find it is quite easy to over think the planking and I prefer to just get on with it and let the planks tell me when they are finding it difficult to follow one another. In this case this started to occur after the 8th / 9th parallel plank. At this stage I marked off the hull as though I would continue with parallel planks. This produced the red line on the photo. I concluded that planking to the red line (even if it was possible) would produce a quite unrealistic planking effect on the keel so I drew the black line to represent where I wanted the planks to fall.
Measuring the space between the lines gave me an indication of how much "extra" planking width I would have to find at the waist - .495 inch (about 3 plank widths) in this case.
I now need a cunning plan for manufacturing a reasonable number of accurately formed taper planks. I feel a bit of experimenting coming on.
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KeithAug got a reaction from KORTES in Altair 1931 by KeithAug - FINISHED - Scale 1:32 - schooner
Before getting too far into the 2nd planking I needed to drill the holes to take the hawse pipes (one on either side of the bow). These are at a compound angle flaring outward and forward as they descend through hull. Three options were available for drilling as follows:-
1, Drill from the deck and exit the drill through the hull.
2, Drill from the hull and exit the drill through the deck.
3, Drill half way from the deck and half way from the hull - meeting in the middle!!!!!
Option 3 would appear to be bonkers however............
Options 1 and 2 have the potential for the exit holes to be out of position - which I thought would look awful. So option 3 it was!
I marked guide lines on the hull at the correct angle and used my hand held drill carefully judging the correct angle. By using a smaller drill than the final hole size and enlarging it with a circular needle file I did manage to make the holes join up. I finished with a 0.16" (4mm reamer to clean up the holes so the hawse pipe would fit snugly.
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KeithAug got a reaction from KORTES in Altair 1931 by KeithAug - FINISHED - Scale 1:32 - schooner
Having completed the ribs I decided to attach the 3rd of the profiled 1/32 inch (actually .036') plywood layers that went to create the profile at the upper edge of the hull.
With this in place it was time to commence the second mahogany planking. This was cut from the old table top mentioned earlier. The planks were .036" x .180" x 15 inch. The first plank went on butting up to the step created by the 3rd plywood layer.
the bulwarks have turned out well and are very solid - testament to the strength of layers of laminated plywood.
3 layers of planking now in place.
so far, so good.
I should probably explain at this stage that the plywood will be painted white while and I am considering leaving the mahogany visible - probably satin poly.
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KeithAug got a reaction from KORTES in Altair 1931 by KeithAug - FINISHED - Scale 1:32 - schooner
I managed to get enough time to complete the ribs. I was struggling a bit to see the laser line until I realised the batteries were about 10 years old. the new ones improved matters greatly.........
With all the ribs attached I used a flexible dowel (zero kerf) pull saw to trim them back to the height of the bulwark.
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KeithAug got a reaction from KORTES in Altair 1931 by KeithAug - FINISHED - Scale 1:32 - schooner
I got a stay of execution on the decorating so managed to do a bit more.
The frames on the model plan don't match the frame positions on the original yacht. The frame positions behind the bulwarks therefore have to simulated by gluing on false ribs.
The ribs do however need to be truly vertical which is a bit difficult when the deck bows from stem to stern with a pronounced rise at the stem. Obviously taking a reference from the deck wasn't an option. I decided the reference had to be taken from the workbench but it wasn't immediately obvious how I would transfer a vertical line from the bench to the inside of the bulwark.
A bit of thinking prompted the following solution.
The key component is a christmas stocking quality laser line level. I mounted it on a v block with a vertical post clamped in place to hold the laser. With a bit of shimming I adjusted the laser to cast a vertical line on the wall. This was then used to transfer vertical lines on to the inside of the bulwarks (using the laser line to as the guide for drawing vertical pencil lines)
The horizontal positions of the ribs were transferred to the deck using a template.
The ribs were cut from .150" x .150" mahogany plank (cut using the slitting saw). Each one had to be shaped on the disc sander to fit the changing profiles of the bulwarks / deck.
So far so good!
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KeithAug got a reaction from KORTES in Altair 1931 by KeithAug - FINISHED - Scale 1:32 - schooner
Praying for Rain!
Its been some time since my last post. My dear daughter purchased a flat in London in a property built in 1880. It needs a degree of refurbishment and I have been appointed to the post of chief joiner/painter. With that and the garden bursting into spring life I have had little time for my favourite pastime. However today I was at home and thankfully it rained so the yacht took a minor step forward.
I needed to mahogany plank the inside of the bulwarks to represent the detail of the original. See photo
I cut the planks 12"x0.2"x.032" on the circular saw using a .032 thick zero kerf slitting saw blade. The finish was almost polished!
I needed 10 planks to complete the whole process.
I used paper to create the template for the stern.
Having had my modelling fix I now return to house refurbishment - yawn!!!!
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KeithAug got a reaction from KORTES in Altair 1931 by KeithAug - FINISHED - Scale 1:32 - schooner
Bulwarks continued.
It feels like I am taking a long time over this. Accurately shaping the 6 bulwark pieces took a lot of time but now it is done.
The the middle of the 3 layers went on first and fortunately it went on well.
The inner layer went on next - thus creating the first sculpture line on the hull.
The bow where the bow sprit passes through is very heavily built on Altair and I wanted to reproduce this on the model.
The transom also has a fairly subtle shape which I will try to reproduce.
But first I needed to get the stern bulwark in place.
And that is how far I have got at present.
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KeithAug got a reaction from KORTES in Altair 1931 by KeithAug - FINISHED - Scale 1:32 - schooner
Bulwarks!!
So I finally got round to making a start on the Bulwarks. From earlier posts it is apparent that I was approaching this with some trepidation. The sculpturing of the hull on the outside of the bulwarks (see photo) is something I have not done before and I tend to explore options in my head for weeks before attempting something like this. In the end I have to get on with it before I go mad.
I had done a bit of preplanning in that I had left the upper edge of the hull un-planked so that the recess could take the lower edge of the bulwark.
To create the sculpturing the bulwark is going to be laid up in 3 layers of .032 inch ply. The middle of the 3 layers is going on first and fits in the un-planked recess. This middle layer will form the upper sculptured line and the outer layer the lower sculptured line. A bit difficult to explain but I'm sure it will become clear as I work through the process over the coming days.
Anyway the starting operation was to make up a cardboard template to get an accurate representation of the hull recess.
The shape of the bulwark pieces is quite complex and it took a lot of assembling, removing, sanding etc etc before I was happy with the shape. After the best part of a days work I now have 2 parts almost complete and temporarily pinned in place.
Only 4 more pieces to go.
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KeithAug got a reaction from KORTES in Altair 1931 by KeithAug - FINISHED - Scale 1:32 - schooner
I'm still watching varnish dry. The second and third coats have gone on and each dried in 10 hours. The 24 hours drying of the first coat must have had something to do with absorption of the varnish into the wood. Anyway it gave me time to finish off the prop shaft. I still have to make the "A" frame for supporting the rear bearing.
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KeithAug got a reaction from KORTES in Altair 1931 by KeithAug - FINISHED - Scale 1:32 - schooner
Today I had to find something to amuse myself as watching varnish dry isn't a very stimuating pass time (it has dried finally after 24 hours).
I thought I would have a go at making the propeller. I have not made one before and the fall back option was going to be to buy one. I don't however like buying fittings as it always feels like cheating.
This is what I did.
Firstly to make the blades I cut 3 identical strips of brass .040 inch thick. The 3 strips were fastened together using double sided tape as I intended cutting out all 3 blades at the same time. A paper template was fastened to the brass strips again using double sided tape . Confidence / experiences was low so I marked out 6 blades. The pin in one of the photo's gives an idea of scale.
I din't need the reserve set of 3 blades as the first lot turned out ok. The small peg at the bottom of each blade was to locate / fasten them in the hub.
The hub was turned on the lathe and 3 equi-spaced holes were drilled around the circumference to take the pegs on the blade. Each blade was given a slight curvature by bending it around a bar - using the vice to apply the pressure. The whole lot was then assembled and soldered together.
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KeithAug got a reaction from KORTES in Altair 1931 by KeithAug - FINISHED - Scale 1:32 - schooner
Slow progress but I did finish sanding the deck. I started with 120 grit emery cloth and removed all the plank thickness irregularities. I then used 400 grit wet and dry paper (used dry) to give a silky smooth finish. I used a damp cloth wiped over the deck to raise the nap and when dry I again used the 400 grit wet and dry. I repeated this twice.
I also sorted out the stern planking detail.
Time is drawing near when I will need to address the bulwarks so I decided to mount the plank required for inverted handling of the hull. To protect the deck rubber pads are attached to the bearers where they bolt to the hull. The plank is mounted parallel to the waterline so that the setting out of hull details (portholes etc) will be easier later on.
Having completed the deck sanding I wanted to protect the deck from workshop grime. I decided to give it a few coats of satin finish varnish. I need to glue ribs etc to the deck edge once the bulwarks are in place so I masked the deck edge mahogany planks so that gluing would not be a problem at a later stage. The photos were taken with the 1st coat of varnish still wet.
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KeithAug got a reaction from KORTES in Altair 1931 by KeithAug - FINISHED - Scale 1:32 - schooner
Deck planking complete - but as yet not sanded:-
A quick post this time consisting mainly of photographs.
Yesterday afternoon / evening and earlier today I completed the deck planking the initial photographs show where i started yesterday.
The accurate marking and positioning of the deck edge planks paid dividends and by the time I reach the deck centre line the symmetry was virtually spot on. No doubt an element of luck played its part.
Deck sanding tomorrow...........
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