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| surface grindy type project |
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| shipto:
Loosely bolted together but not set up yet and I have to say I am very pleased with how smoothly the table glides along on this plate. Dont want to jinx it but maybe it will give good results after all. |
| shipto:
I have been trying to work on the gears for the feed screw but forged ahead without a clear idea in mind about what i needed and as such I have worked myself into a corner. I am now thinking its a scrap it and start again job, however the gearing I have found should (if I have done my maths properly) give me a little over 0.1mm per full turn of the handle I just hope this will be fine enough control. |
| awemawson:
Many a grinder has two speed gearing, as the fine feed needed is a right royal pain if you need to move a significant distance while setting up. On my cylindrical and also my surface grinder you pull out a knob to engage a coarser feed. Perhaps you could incorporate something similar ? |
| shipto:
--- Quote from: awemawson on March 19, 2014, 04:17:29 PM ---Many a grinder has two speed gearing, as the fine feed needed is a right royal pain if you need to move a significant distance while setting up. On my cylindrical and also my surface grinder you pull out a knob to engage a coarser feed. Perhaps you could incorporate something similar ? --- End quote --- Its not a bad idea actually if I can figure out a way of driving the second stage of gearing direct then that would bring the travel to .5mm per turn and would certainly save a lot of handle turning. |
| SwarfnStuff:
Not sure why you think it's a scrap and start again job as you didn't say. Or I didn't read carefully enough. From my looking at the last pic, if the gear plate attached to the lead screw is rotated 180deg it looks like it would line up close enough to allow fixing of the two plates so the gears mesh ok. Of course the way you have it may be what is needed for mounting. Good luck with whatever you decide - tis all a learning experience. Think of it a practice if it helps. John B :mmr: |
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