KeithAug
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Stevenson's ER32 Collet Blocks
KeithAug replied to KeithAug's topic in Modeling tools and Workshop Equipment
John, You need to think about getting something with a decent sized hole through it to take longer stock. Not all round collet holders have a decent bore. The ER collet blocks work fine in the lathe chuck if you are wanting to quickly mount something that isn't going to damage a finished surface of softer bar stock such as aluminium or brass (the 3 jaw chuck can damage these quite easily). If you don't want to go through the bother of dismounting and remounting the chuck then the collet blocks are a quick and easy solution and do have a decent bore. It isn't as accurate as a collet chuck but I checked my set up and can get concentricity of better than .002" which is good enough for most of what I do. I do have a collet chuck which I use for more accurate work. If you need smaller then you can get ER25 versions. -
John. Don't mention the cricket, or rugby league for that matter. Much better to mention Rugby Union. Have a happy Christmas.
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Michael - hope you are better for Christmas day - its miserable when you can't ask for more pudding.
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Its all looking very professional. Impressive.
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Sometimes when I am about to start a new element I find myself getting frustrated with the state of the workshop. This happened on Sunday so I spent the day tidying up. That done I was forced to make a start on the launch. I redrew the sections at twice scale to get them as well defined as possible. I then reduced them to scale size on the printer. The launch is about 7 inches long and 1.6 inches wide. I made a test section to have a little practice on the scroll saw - bottom left quadrant. The sections are just formers and will be removed once the hull is planked. I then made the base board on the mill - the slots are .080" i.e. the thickness of the ply sections. I found cutting the sections on the scroll saw quite challenging. It took a great deal of concentration to keep the cut on the line. This was predominantly because the cut line looked almost identical to the black drawn line I was following. As a result I struggled to see where along the line the blade actually was. Next time I will draw the line I am following in another colour - probably orange (dark enough to see, light enough not to blend with the black slot of the cut). Taking the cut slow and steady produced acceptable results - the frames temporarily fitted in the next photo are as cut. The frames were squared up and glued using the right angle edge of some "V" blocks. They were clamped while drying using rare earth bar magnets (3mm x 10mm x 40 mm). With the 7 frames installed a keel was made and glued in the pre cut notches. The keel is much deeper than needed and will be cut back later. Balsa blocks were glued between the sections to add stiffnes during planking. I am thinking of single planking in mahogany of .125" x .040" section. I have to admit that i'm not entirely sure what I am doing. Its all bit of an experiment. Oh Hummm! I may not get another post done before Christmas as the house is already in entertain guests mode. So if I don't can I wish you all the compliments of the season.
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This is a better scroll blade chart:- http://www2.woodcraft.com/PDF/Olson-scrollblade-chart.pdf
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Hello Mark I got the heat shrink from Amazon. I got the smallest diameter possible 1.6mm pre shrunk 0.8mm shrunk.
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Michael thank you. Not quite as heavily built as your coffee table. Jon / Noel:- I had a practice with the saw today. It came with a lot of blades - the first pulled as you described but the second (a much finer blade) didn't. I'm pretty sure I had both the right way round but its difficult to check - in the end I got the jewellers loupe out to check. That said there are a lot of blade types - most of which I have as they came with the saw. It will take a while to try them all.
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Dan. What an amazing job you are doing and a good read as well. I’m still wondering how it is possible to get such detail at this scale. Wishing you a Happy Christmas and a prosperous New Year.
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They are looking pretty smart Michael. Have you recalculated your hourly rate recently? It must be dropping like a stone.
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A few months ago I bought a second hand scroll saw, predominantly to make the cutting of frames easier and more accurate. Since then it has sat on the floor of the workshop gathering dust. Making the launch frames was the first opportunity to use it and practice. What I needed was a solid table to mount it on - hence the wood in the previous post. It would have been easier to have cut the frames with a piercing saw but that would have made the purchase of the scroll saw even more extravagant. Anyway to the bench - which I wanted to be of high mass and stiffness with good vibration absorption properties. I didn't want it bolted down to keep flexibility of space in the workshop. The frame was made from 3" x 1.5" pine with a very solid top made from a piece of 1.625" thick oak. To add stiffness and mass 3 sides and the base had inserted panels made from 0.9" flooring quality chipboard. I had a few rubber bushes from washing machine delivery packaging that I decided to use to isolate and damp the saw mounting lugs. The bushing was arranged to ensure that the only connection between the saw and the bench was through the rubber. The table top was drilled to take the bushes together with a clearance hole for the bolt. I built storage into the bench to take heavy items, increasing the mass further. So now I have the scroll saw ready to start making the launch.
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A merry Christmas to you and yours Jon. I do get your reasoning on the future of this build. I keep thinking I need to get on to quite a few outstanding projects and that Altair is getting in the way. However I'm still thinking that the best way forward is to finish it, time will tell if I continue with this view.
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Nils, its quite an attractive feature, its just a bit interesting that the original builders didn't just extend the hull length to give greater capacity and speed. I guess we may never know their thinking.
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Nils m- was there a specific reason for the overhanging deck / gratings at the stern? By the way the grating looks very neat.
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ancre La Salamandre by tadheus - 1:24
KeithAug replied to tadheus's topic in - Build logs for subjects built 1751 - 1800
Very interesting Pawel. What metal are you using? -
Michael - not sure about the tea idea. Have you thought about Macallan 25 year malt. Much the same colour as tea but with greater preservative qualities. A further advantage is everything looks fuzzy after a while so the line fuzz wouldn't stand out.
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Roger / John Its probably safe to say that while the wood is part of my plan for completion of the launch it isn't actually on the main route. Julie, thank you very much for looking in and for your kind comments.
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I was wondering what was happening - good to see this again.
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Oh goody, more entertainment. I have been missing this.
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