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Author Topic: Perfect Square?  (Read 18435 times)

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Offline kolias

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Re: Perfect Square?
« Reply #40 on: August 26, 2009, 06:22:06 PM »
I have double shaft steppers. They mount on the back.

Me too but how you attach the damper to the shaft, with a coupling?
Nicolas
Nicolas

Offline ger21

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Re: Perfect Square?
« Reply #41 on: August 26, 2009, 06:23:04 PM »
It's got a hub that get's glued into it, and has a setscrew.

Read through this.

http://www.cnczone.com/forums/showthread.php?p=256639#post256639
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html

Offline ger21

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Re: Perfect Square?
« Reply #42 on: August 26, 2009, 09:31:45 PM »
Here's some pics of the dampers and a YouTube video showing with and without.
http://www.youtube.com/watch?v=UJjivsVwSsQ
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html

Offline kolias

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Re: Perfect Square?
« Reply #43 on: August 26, 2009, 10:33:36 PM »
Nice work Gerry, thanks for sharing
Nicolas
Nicolas

Offline kolias

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Re: Perfect Square?
« Reply #44 on: August 27, 2009, 04:46:23 PM »
Well Gerry my dampers are a shame in comparison to yours but I did notice a reasonable decrease of resonance on the Y axis. The damper is press fitted to the motor shaft and as the time goes I may get some better ideas but for now it will do.

The diameter of the disks is 2-3/8" and that is the max I can fit there considering the available space. The Y axis motor is under the table and I have very limited space to work on the shaft without major modifications.
Nicolas
Nicolas

Offline kolias

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Re: Perfect Square?
« Reply #45 on: August 28, 2009, 01:39:48 PM »
This design I got it from the web sometime ago (solsylva?) and after the installation resonance=0. Very happy about it

Did not notice any speed increase in the Y axis but at least she now works smooth and silent, coffee grinder sound is gone

The caster wobbles a bit, very difficult to do a good align job, but makes no difference.

Later I might get a proper coupling and then there will be no wobbling.
Nicolas
Nicolas