Cracked Y Idler Mount

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Cracked Y Idler Mount

Postby twehr » Sat Jul 09, 2011 4:14 pm

Doing a few hours of production today and at one point I started getting what looked like a double-strike on some lettering. It only appears at the end (image x-max).

Notice the double comma at the end.
Normal X Mode.jpg


Here is what it looks like if I do unilateral x swing (only marking with head movement L to R). Of course that will double the time to process a file.
Unilateral X.jpg


Here is the cause. A cracked X Axis Idler Mount.
Cracked Idler Mount.jpg


I probably have more hours on my machine that anybody else. Bart is aware and looking at this. You may want to periodically check yours.
tim
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Re: Cracked Y Idler Mount

Postby bdring » Sat Jul 09, 2011 4:27 pm

Tim actually got the very first 2.x. The amount of material at the top of that bracket was thinner than it should have been and the design changed shortly after that. Most people got the rounded top version. The design is changing to the smooth idler which will not have pressure from the bearing.

I am sending several of the rounded top style and the smooth idler version to Tim overnight.
Bart
"If you didn't build it, you will never own it."
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Re: Cracked Y Idler Mount

Postby twehr » Sat Jul 09, 2011 4:41 pm

bdring wrote:Tim actually got the very first 2.x. The amount of material at the top of that bracket was then than it should have been and the design changed shortly after that. Most people got the rounded top version. The design is changing to the smooth idler which will not have pressure from the bearing.

I am sending several of the rounded top style and the smooth idler version to Tim overnight.


Thanks, Bart.
tim
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Re: Cracked Y Idler Mount

Postby whmeade10 » Sat Jul 09, 2011 5:55 pm

Tim, mine is cracked also. This might be why I had to slow down my max acceleration for the DSP when engraving letters that
drop below the line like a g and y. They were coming out deformed until I slowed the max acceleration
from 10000 to 4000.

DSC_2159.JPG
Crack in top of bearing block.

Bill
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Re: Cracked Y Idler Mount

Postby J45on » Sat Jul 09, 2011 6:10 pm

Mine is also very thin, I shall keep an eye on it
Image
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All Fixed

Postby twehr » Mon Jul 11, 2011 10:52 pm

Bart overnighted a new mount. Took about 4 minutes to install. All is back to normal.

Thanks, Bart, for always being the best vendor in any business.
tim
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Re: Cracked Y Idler Mount

Postby bill griggs » Tue Jul 12, 2011 4:08 pm

Looks like that part could use some more material above the Bearing.
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Re: Cracked Y Idler Mount

Postby bdring » Tue Jul 12, 2011 5:13 pm

That was the first generation bracket. The second generation had more material and had a rounded top to make it easier to distinguish from similar brackets. The third generation was completely redesigned to reduce runout. Those are shipping with all new kits starting this week (no additional charge). The low runout idler is implemented in the X, Y and Z axes.

awesome_idler.jpg
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Re: Cracked Y Idler Mount

Postby cpdude » Wed Jul 13, 2011 3:53 pm

Hmmmm...Mine looks exactly like Bill's

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Re: Cracked Y Idler Mount

Postby Chankster » Wed Oct 05, 2011 4:50 pm

Was working on my machine last night and noticed that mine has also cracked.
"This is not my sig", it said. - I looked at it suspiciously; Who's sig was it, then?
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