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Forum: Miscellaneous / General / Whatever / Catchall Mon 18 June 2012, 11:04
Replies: 308
Views: 303,522
Posted By Allegheny
If I understand what Mike is saying - chatter...

If I understand what Mike is saying - chatter occurs at the resonate frequency/rpm of a given motor. Any attempts at minimizing chatter, therefore, should revolve around keeping that stepper from...
Forum: Miscellaneous / General / Whatever / Catchall Sat 17 September 2011, 11:36
Replies: 308
Views: 303,522
Posted By Allegheny
How about some tightly fitting rigid felt wipers...

How about some tightly fitting rigid felt wipers on both faces of the bearing blocks?

I don't know exactly how you would do this for a CNC router, but in the machine tool world, the felt is cut to...
Forum: Miscellaneous / General / Whatever / Catchall Fri 16 September 2011, 05:21
Replies: 308
Views: 303,522
Posted By Allegheny
That was very interesting. The main take away...

That was very interesting. The main take away message for me was the ability of the round rails to self-align. Given that our machines may not be perfectly flat straight and/or square (especially...
Forum: Miscellaneous / General / Whatever / Catchall Fri 16 September 2011, 05:04
Replies: 308
Views: 303,522
Posted By Allegheny
Hi Kim, I am slowly getting closer to...

Hi Kim,

I am slowly getting closer to starting a build and the more I look at this thread, the more convinced I become that linear bearing slides are the way to go.

I was wondering if you could...
Forum: Miscellaneous / General / Whatever / Catchall Mon 28 March 2011, 05:51
Replies: 308
Views: 303,522
Posted By Allegheny
I like the built-in bottle/cup holder :D ! ...

I like the built-in bottle/cup holder :D !

Brian
Taxachusetts
Forum: Miscellaneous / General / Whatever / Catchall Mon 21 March 2011, 07:00
Replies: 308
Views: 303,522
Posted By Allegheny
Ouch - that is a huge tube! The only bending I'd...

Ouch - that is a huge tube! The only bending I'd be worried about would be the support table! Would sure make for good dampening though. With such a heavy tube, I would think you'd need some...
Forum: Miscellaneous / General / Whatever / Catchall Thu 10 March 2011, 15:07
Replies: 308
Views: 303,522
Posted By Allegheny
Hi myousry, While I wouldn't consider myself...

Hi myousry,

While I wouldn't consider myself "metrically" challenged, I'm not all that familiar with common metric stock sizes. Looking at the gantry in post #197, I'd estimate it at 4x8" tubing,...
Forum: Miscellaneous / General / Whatever / Catchall Thu 10 March 2011, 13:03
Replies: 308
Views: 303,522
Posted By Allegheny
Hi myousry, I see what you need to do. But...

Hi myousry,

I see what you need to do. But there's more then one way to "skin a cat" as we say in the states.

How about spacing the ball screw mounts further from the gantry by putting some...
Forum: Miscellaneous / General / Whatever / Catchall Thu 10 March 2011, 09:16
Replies: 308
Views: 303,522
Posted By Allegheny
The other concern I would have with a multi-part...

The other concern I would have with a multi-part gantry - as opposed to a single large tube on which to mount the z-axis - is the difficulty in keeping everything in alignment. As configured, there...
Showing results 1 to 9 of 9

 
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