Non-Concentric Circles

[HamadaRed]

I've been searching online for this issue and apparently it's a belt tension problem. I used a belt tension gauge to ensure both belts on the y axis movement were equal. I have not adjusted steps... Any ideas or suggestions would be very much appreciated.

BTW I have a replicator (dual) clone.

Thanks Guys and Gals!

IMG_0019.jpg

[Mjolinor]

In the absence of a description of the fault one assumes the problem is that the circles should be concentric.

An idea of scale would help, ie. what diameter are the "circles".

My first port of call would be to actually check the Gcode or draw a circle, convert to Gcode then edit the Gcode to duplicate the circle. That way you know they are identical circles. Slicers can do weird things while slicing.

[HamadaRed]

In the absence of a description of the fault one assumes the problem is that the circles should be concentric.

An idea of scale would help, ie. what diameter are the "circles".

My first port of call would be to actually check the Gcode or draw a circle, convert to Gcode then edit the Gcode to duplicate the circle. That way you know they are identical circles. Slicers can do weird things while slicing.

The outer most circle is 40mm. It's meant to test the ability of one's printer to product circles. It gets increasingly smaller to test for precision at smaller scales. Any circles I currently produce are slightly warped in the +X-Y and -X+Y direction. I'm quite new at performing adjustments and finding the cause of this issue in particular has been a little tricky. I'll have a look at some gcode and see what results I can come up with. Thank you!

[richardphat]

Another problems;
It feels that your layers aren't adhering properly. We can see the dark tables texture through the infill. Further, if you notice the picture, there's 2 section that is squished nice and even while the other sectors seems to be completely off.

[HamadaRed]

I just finished printing a 10mm cube to measure with a caliper and made some minor X/Y adjustments (Z was perfect) to ensure measurements were accurate. I'm going to run through a solid cylinder to see how it looks. I really appreciate any help I can get.

[GOC]

- Not sure what board your using on the clone, but its not an uncommon issue. My solution was simply a calibration that was needed to be done in the machine firmware, but I have a delta style so your solution may be different.

Here are some links with others having this same issue & their solutions.

How to Calibrate for perfect circles - https://groups.google.com/forum/#!to...le/MNnym1MC94Y

Circles not coming out Circles - http://forums.reprap.org/read.php?151,71788,page=1

Printrbot print a oval instead of a circle - http://www.printrbottalk.com/forum/v...hp?f=20&t=3510

Circles aren't printing like they should be - http://3dprintboard.com/showthread.p...they-should-be

Hole diameter smaller and holes are not round. (Replicator 2) - https://groups.google.com/forum/#!to...ot/t37iS3MdAqQ

[printrboy]

- Not sure what board your using on the clone, but its not an uncommon issue. My solution was simply a calibration that was needed to be done in the machine firmware, but I have a delta style so your solution may be different.

Here are some links with others having this same issue & their solutions.

How to Calibrate for perfect circles - https://groups.google.com/forum/#!topic/solidoodle/MNnym1MC94Y

Just saying, the M98 and M99 command that Neil added and mentioned there got removed, it isnt there now...

Perhaps this can also be done in Slic3r?

[HamadaRed]

- Not sure what board your using on the clone, but its not an uncommon issue. My solution was simply a calibration that was needed to be done in the machine firmware, but I have a delta style so your solution may be different.

Here are some links with others having this same issue & their solutions.

How to Calibrate for perfect circles - https://groups.google.com/forum/#!to...le/MNnym1MC94Y

Circles not coming out Circles - http://forums.reprap.org/read.php?151,71788,page=1

Printrbot print a oval instead of a circle - http://www.printrbottalk.com/forum/v...hp?f=20&t=3510

Circles aren't printing like they should be - http://3dprintboard.com/showthread.p...they-should-be

Hole diameter smaller and holes are not round. (Replicator 2) - https://groups.google.com/forum/#!to...ot/t37iS3MdAqQ

I'll be going through all of this. Thanks for the help.