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| My 9*20 mods |
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| John Rudd:
I started to add a tacho readout on my 9*20...Here's a shot of the interruptor disc I made and the opto coupler that I'm using |
| John Rudd:
Heres a piccy of the disc after being made on my mill.. Its about 65mm in dia and has 20 slots 6mm wide iirc... |
| sbwhart:
Thats an interesting indexing set up John, is it home made ?. Nice neat bit of maching by the way :thumbup: Stew |
| Divided he ad:
Looks interesting John..... Keep us up to date on this one...... I have some little bits lying around somewhere that look just like that optical doofor and a 9x20 :) Ralph. |
| John Rudd:
--- Quote from: sbwhart on June 29, 2009, 05:51:35 AM ---Thats an interesting indexing set up John, is it home made ?. Nice neat bit of maching by the way :thumbup: Stew --- End quote --- Stew, Yes it is home made form a design by Harold Hall in his book 'Milling a complete course' I used a 60 tooth change wheel from the lather gear set to divide to 20 slots to get the accuracy..Worked rather well I must say :thumbup: |
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