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Replacing old rack and pinion technology

Replacing old rack and pinion technology

This is a really cool way to do long travels and fast speeds.  The roller pins on the ‘pinion’ can provide almost zero backlash, and prevent the high wear and tear that traditional racks experience.  I haven’t had a chance to use this yet, hopefully an application will come my way soon, I’d like to take a look at these.Roller-pinion-drive

http://machinedesign.com/motorsdrives/roller-pinion-drive-positions-fast-moving-plasma-cutter