1 Topic by exe (edited by exe 2015-09-18 08:19:17)

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Topic: DaVinci 1.0 1mm offset

Hello,

I am the new owner of a (second hand) DaVinci 1.0 for a while. It is already flashed with repetier firmware and I am using repetier host to print and slic3r to slice.

I have been trying to calibrate it for about a month now. I thought I reached an OK level of calibration (checked and adjusted belts, added shims, adjusted bed, adjusted print speed settings) so I tried to make my first (real) part.

The part printed very good, and the overall deviation is 0.1-0.2mm, however the marked sides in the photo printed as +1mm (exactly!) thicker than they should be.

Im confused as these sides are not on a single axis, but rather in both, and also only on this orientation, as the other sides printed as they should. Any ideas what the problem could be? Also to note here is that my circles are not perfect but have a slight elongation on that direction (from marked side to marked side).

Thanks a lot for the help

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2 Reply by carl_m1968

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Re: DaVinci 1.0 1mm offset

Pull your X carriage all the way forward then look up where it bumps the forward pulleys. You should see one side is not as close. This means that side has jumped teeth on the belt. You will need to loosen the tensioner for that side and move the belt by hand the number of teeth needed to make it bump the pulley as well. Then tighten everything back up.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

3 Reply by exe

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Re: DaVinci 1.0 1mm offset

Thats one of the very first things i did when i got the printer hmm

carl_m1968 wrote:

Pull your X carriage all the way forward then look up where it bumps the forward pulleys. You should see one side is not as close. This means that side has jumped teeth on the belt. You will need to loosen the tensioner for that side and move the belt by hand the number of teeth needed to make it bump the pulley as well. Then tighten everything back up.

4 Reply by carl_m1968

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Re: DaVinci 1.0 1mm offset

Then check the housing around  the bearings at the top back and front of the machine. Many of them have been cracked and will cause your issue.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

5 Reply by exe

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Re: DaVinci 1.0 1mm offset

carl_m1968 wrote:

Then check the housing around  the bearings at the top back and front of the machine. Many of them have been cracked and will cause your issue.

Bearing holders (black) are not cracked.

6 Reply by boxcarmib

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Re: DaVinci 1.0 1mm offset

Is there a possibility that it could be your slicer rather than your printer? Have you tried slicing/printing your part at a larger size to see if you still have a dimensioning error (although out by a whole mm seems kind of severe).
looking at your image preview the two areas you mention do look a bit wider than there corresponding sides... but then again, maybe thats just perspective and i'm seeing what I want to.