#11
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i think i have a little off cut in the garage so i may have a quick go lol
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Neil |
#12
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I am interested in the comparison of times. I gave the question for my orientation in this problem.
How much time do you think you need for to make such a simple shape. You have to measure both radii. The result must be accurate. You make only one piece. I just want to compare. Then I will write to you how much time I needed.
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Jaroslav |
#13
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Today I tried a little smaller again. Step by step photo. Total time 60 min. But no measurement, just a test. I already know the directions of shape. You need to train even silly things. I'm giving the procedure.
DSC00378.jpg DSC00379.jpg DSC00380.jpg DSC00381.jpg DSC00383.jpg DSC00384.jpg DSC00388.jpg DSC00389.jpg DSC00390.jpg DSC00395.jpg DSC00397.jpg DSC00400.jpg
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Jaroslav |
#14
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well i got hold of a piece of scrap, measured up best i could, 500mm long, just under 200mm wide. i don't have much to gauge the radii but it took 20 minutes to go from flat to this shape, with a sand bag and a standard wheel
20190311_112007.jpg 20190311_111959.jpg i don't have much time to waste making scrap i don't need so once it was to this shape at 20 minutes, i reckon under an hour to finish the piece, starting off with a wider piece than needed would be better, that way any shrinking marks would be in the waste material being cut off.
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Neil |
#15
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Quote:
It looks silly, but we were the first fender did 10 hours !!!! Yes - incredible. Of course we talked about it, and so on. I did not understand where the bug was ... we measured and tuned exactly, but the time got me. We just started wrong, it was hardened sheet metal, but the time ..... On my next test, it was confirmed. It should be the 3 hours and the lunch as planned. There was a lot of talks and little masters of shaping. Thank you for all posts. Add your opinions. It's a simple shape, but it can employ you.
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Jaroslav |
#16
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Quote:
Can you show a sketch of the cross slide set up you're describing for making the large diameter dies? I think I understand you description but not sure. Thanks. |
#17
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first picture you see a Boise Crane wood lathe head stock mounted parallel with bed are 2 pipes [ x axis ] one on each side mounted above are 2 pipes at 90 Degrees these 2 pipes slide R & L on first pipes . the square wood top moves on the 90 degree pipes [ Y ] axis .
There is a link mounted to the aluminum extrusion with tee slots and to under side of top by changing length of link you change the radius . This arrangement work better for larger radii I use a pivoting conventional radius cutter for up to 4.25 " and it is a struggle for a few inches on the x y . Would I build it this way again never it was made this way due to materials on hand MOH . The fit of pipe thru fittings is horrid one could make much better pcs out of wood . But it works . The base was screwed up out of 3/4" plywood I used 1/4 bolts as wood screws drilled a 3/16" tap hole 1/4" thru hole in pcs being mounted it takes a bit of force and generates a lot of heat and you want to use min of 3 - 4 time bolt diameter thread engagement . xy wood lathe.jpg xy lathe.jpg Last edited by galooph; 03-12-2019 at 02:12 PM. |
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