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Search: Posts Made By: lumberjack_jeff
Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains Tue 19 January 2010, 21:20
Replies: 449
Views: 182,894
Posted By lumberjack_jeff
With the steppers energized, I can get .4mm of...

With the steppers energized, I can get .4mm of movement (entirely gearbox movement - I can feel the pinion rotate) in my y axis. For reasons of which I'm not entirely certain, I have much less in my...
Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains Thu 07 January 2010, 15:50
Replies: 449
Views: 182,894
Posted By lumberjack_jeff
These guys (http://www.stdsteel.com/gear.htm) are...

These guys (http://www.stdsteel.com/gear.htm) are cheaper than McMaster for racks.
Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains Thu 07 January 2010, 15:49
Replies: 449
Views: 182,894
Posted By lumberjack_jeff
One of the reasons a MechMate cuts well is...

One of the reasons a MechMate cuts well is because the gantry has a great deal of mass.

It may be counterintuitive, but if you want to cut aluminum, make it big.
Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains Sun 15 November 2009, 11:16
Replies: 449
Views: 182,894
Posted By lumberjack_jeff
That is very nice work chopper.

That is very nice work chopper.
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