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Search: Posts Made By: edrowell
Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains Tue 17 June 2008, 05:56
Replies: 14
Views: 27,135
Posted By edrowell
This is kind of what I am thinking of. Looks very...

This is kind of what I am thinking of. Looks very similar to what we are doing with the rack and pinion setup.
Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains Tue 17 June 2008, 05:20
Replies: 14
Views: 27,135
Posted By edrowell
Gerald, Thanks for the link. Those rotary...

Gerald,

Thanks for the link. Those rotary tables look very, very nice.
I just wanted to check that I'm not doing something silly here, so I think I will try spring loading this gearbox similar to...
Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains Mon 16 June 2008, 05:48
Replies: 14
Views: 27,135
Posted By edrowell
I have used worm gear rotary tables in our...

I have used worm gear rotary tables in our machine shop at work and they would seem to be ideal for an indexer. However, we have several of them, and the ones that have been used for a while all have...
Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains Wed 11 June 2008, 08:21
Replies: 14
Views: 27,135
Posted By edrowell
The ratio for the gears are as follows: ...

The ratio for the gears are as follows:

Pinion - 20 tooth
Gear - 110 tooth
Ratio 5.5:1
Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains Wed 11 June 2008, 06:40
Replies: 14
Views: 27,135
Posted By edrowell
J.R., I actually have two of them, but I...

J.R.,

I actually have two of them, but I have ambitious plans for them. They are gear heads from satellite actuators and you can see the pinion still on the motors. You can find them on ebay every...
Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains Wed 11 June 2008, 05:53
Replies: 14
Views: 27,135
Posted By edrowell
Driving an "indexer" , or a ("4th") rotary axis

I have this gearhead and I'm thinking of buying a new motor and using it for a 4th axis. I'm wondering, if I make a mounting plate similar to the plates for the gantry motor mounts and spring load it...
Forum: 701. Motor Drives Tue 10 June 2008, 08:22
Replies: 148
Views: 164,077
Posted By edrowell
Thanks Gerald. Next time I check with an ohmmeter...

Thanks Gerald. Next time I check with an ohmmeter I'll try and actually read the display. Thanks for the quick replies.

Evan
Forum: 701. Motor Drives Tue 10 June 2008, 06:47
Replies: 148
Views: 164,077
Posted By edrowell
DOH! I checked again and I grabbed the 3300 and...

DOH! I checked again and I grabbed the 3300 and 2200 ohm resistors instead of the 33000 and 22000 ohm resistors. That did it for the motor velocity issue as they are getting up to speed nicely now....
Forum: 701. Motor Drives Tue 10 June 2008, 06:04
Replies: 148
Views: 164,077
Posted By edrowell
1. PMDX-122 JP1 connector must be in the bottom...

1. PMDX-122 JP1 connector must be in the bottom position with G203v stepper drivers.
JP1, JP2, JP3 are all in the bottom position; JP4, LP5, JP6 are all in the top position. "Outputs Enabled" is...
Forum: 701. Motor Drives Mon 09 June 2008, 19:12
Replies: 148
Views: 164,077
Posted By edrowell
I'm having some issues with my setup as well. I...

I'm having some issues with my setup as well. I have one PK296A1A-SG7.2 (half-coil), two compumotor LN series motors (full coil), three g203v drivers, and one pmdx-122. I got everything powered up...
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