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DIY For Audio
CNC - and you thought DIY is a bottomless pit eh?
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<blockquote data-quote="gbyleveldt" data-source="post: 6274" data-attributes="member: 122"><p>OK, we're in serious danger of messing up Norval's thread so I'll keep it short. Rack & pinion is asking for trouble when it comes to tolerances. With a screw it is easier to have the "nut" have an adjustment to cater for machining tolerances to give you super accuracy. It might also be a good idea to visit Huletts to have a look at all the extrusions they have there (I've been meaning to do it myself). Then fashioning a 3 wheel alignment system to keep things straight on the extrusion and Bob's your uncle. In my design I was going to use 2 synchronised steppers for the x axis to help keep things true for long travels. I used <a href="http://www.colinbus.com/English/CBRrange_en.htm" target="_blank">http://www.colinbus.com/English/CBRrange_en.htm</a> for reference.</p><p></p><p>Sorry Norval... ;D ;D ;D</p></blockquote><p></p>
[QUOTE="gbyleveldt, post: 6274, member: 122"] OK, we're in serious danger of messing up Norval's thread so I'll keep it short. Rack & pinion is asking for trouble when it comes to tolerances. With a screw it is easier to have the "nut" have an adjustment to cater for machining tolerances to give you super accuracy. It might also be a good idea to visit Huletts to have a look at all the extrusions they have there (I've been meaning to do it myself). Then fashioning a 3 wheel alignment system to keep things straight on the extrusion and Bob's your uncle. In my design I was going to use 2 synchronised steppers for the x axis to help keep things true for long travels. I used [url=http://www.colinbus.com/English/CBRrange_en.htm]http://www.colinbus.com/English/CBRrange_en.htm[/url] for reference. Sorry Norval... ;D ;D ;D [/QUOTE]
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DIY & Tutorials
DIY For Audio
CNC - and you thought DIY is a bottomless pit eh?
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