SoliForum - 3D Printing Community — F*%king irregular circles

Re: F*%king irregular circles

null@example.com (wardjr) — Mon, 04 Aug 2014 23:24:16 +0000

Damn smart phone
It was mixed into the body of your post.

Re: F*%king irregular circles

null@example.com (aaronstalling) — Mon, 04 Aug 2014 23:17:38 +0000

wardjr your post is empty :-(

Re: F*%king irregular circles

null@example.com (wardjr) — Mon, 04 Aug 2014 21:09:07 +0000

aaronstalling wrote:

Please help me!
I've installed two pillow blocks on the rear, played with the belt tensions and I'm still getting up to 0.3mm gaps between the perimeter and infill at 11 and 5 o'clock.
Somethings I have noticed are:
● When I do the "perfect circles" calibration to centre the y-axis drive pulley the left pulley's position will move left to right by up to 2mm, the right one doesn't move.
● The left y-axis front idler bracket bends a lot with the littlest amount of force when I tension the left side carriage. I think this flex is the issue. Anyone got the stl for this part?
● It doesn't matter where I print the circles on the bed, I get the same result.
● Tightening the y and x axis very tight has no improvement on the circles.
● My Y axis belt from shaft to rod is tight.
● I have equal tension between the left and right side (as best I can using feel and the Ian's coin weight)
Has anyone ever thought of using the holes in the front of the the chassis to install bushings and a long rod similar to the back to hold the idlers?

I have though of doing that and probably will some day. In the mean time those are on Thingiverse. I think Adrian posted them otherwise just search Solidoodle and they should pop up.

F*%king irregular circles

null@example.com (aaronstalling) — Mon, 04 Aug 2014 21:02:48 +0000

Please help me!

I've installed two pillow blocks on the rear, played with the belt tensions and I'm still getting up to 0.3mm gaps between the perimeter and infill at 11 and 5 o'clock.

Somethings I have noticed are:
● When I do the "perfect circles" calibration to centre the y-axis drive pulley the left pulley's position will move left to right by up to 2mm, the right one doesn't move.
● The left y-axis front idler bracket bends a lot with the littlest amount of force when I tension the left side carriage. I think this flex is the issue. Anyone got the stl for this part?
● It doesn't matter where I print the circles on the bed, I get the same result.
● Tightening the y and x axis very tight has no improvement on the circles.
● My Y axis belt from shaft to rod is tight.
● I have equal tension between the left and right side (as best I can using feel and the Ian's coin weight)

Has anyone ever thought of using the holes in the front of the the chassis to install bushings and a long rod similar to the back to hold the idlers?