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Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains

Thu 21 January 2010, 08:17

Replies: 37

Backlash in the gearhead of the Oriental Motor PK296A2A-SG7.2

Views: 47,864

Posted By lumberjack_jeff

Yes Brad, exactly. The motors were an...

Yes Brad, exactly.

The motors were an inexpensive eBay find, I wouldn't have ordinarily purchased dual shaft motors.

I hadn't really intended to put encoders on those shafts, but it is my...

Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains

Wed 20 January 2010, 20:07

Replies: 37

Backlash in the gearhead of the Oriental Motor PK296A2A-SG7.2

Views: 47,864

Posted By lumberjack_jeff

I wasn't clear. While holding the pinion gear, I...

I wasn't clear. While holding the pinion gear, I can rock the y-carriage back and forth exactly .015" - no more. The pinion gear rotates, but the motor shaft (my motors have dual shafts) does not....

Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains

Tue 19 January 2010, 21:20

Replies: 37

Backlash in the gearhead of the Oriental Motor PK296A2A-SG7.2

Views: 47,864

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...

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