Extruder Offset X or Y??

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Omojesu
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Joined: Sun Sep 04, 2016 6:21 pm

Extruder Offset X or Y??

Postby Omojesu » Thu Dec 08, 2016 4:18 pm

Can anyone explain what this means and how to adjust for it, thanks? ;)

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Billucas
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Location: Quebec, Canada

Re: Extruder Offset X or Y??

Postby Billucas » Thu Dec 08, 2016 7:00 pm


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Vicky@Raise3D
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Re: Extruder Offset X or Y??

Postby Vicky@Raise3D » Fri Dec 09, 2016 4:17 pm

That is for dual-extruder. For calibrating the distance between two nozzle.
ideaMaker thinks that the two nozzles have a distance of 25mm in X and 0 in Y by default. But every printer has a little different in nozzle position due to tolerance so that the real distance between two nozzles are not always (25,0). If the set distance is not the same as the real distance, when printing dual-extruder prints, gaps and overlapping will appear at the joint section of the two nozzle printed parts.
For find a perfect value for your printer, you need to do a calibration for dual-extruder. There are a lot choices for it on thingiverse. For example: http://www.thingiverse.com/thing:533814.
After you see the result of your dual calibration, adjust the X and Y offset in ideaMaker. Then apply one more calibration.
You may need to do several times to find out the perfect value.

Omojesu
Posts: 14
Joined: Sun Sep 04, 2016 6:21 pm

Re: Extruder Offset X or Y??

Postby Omojesu » Sat Dec 10, 2016 4:50 pm

Hello and thanks for your help guys. Vicki your explanation is very clear.
I have attached photos of dual extrusion attempt:
Nos 1 and 3 are the dual extrusions showings gaps in the models; No 1 is of single extrusion with no gaps at all.
Looking at 1 and 3 arranged with X as horizontal and Y as vertical, it looks like both X and Y need adjustment???
Attachments
IMG_3107.JPG
IMG_3126.JPG

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Vicky@Raise3D
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Re: Extruder Offset X or Y??

Postby Vicky@Raise3D » Sat Dec 10, 2016 5:20 pm

Yes. Both X and Y needs adjustment. There are gaps in both vertical and horizontal directions.

Omojesu
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Joined: Sun Sep 04, 2016 6:21 pm

Re: Extruder Offset X or Y??

Postby Omojesu » Sat Dec 10, 2016 8:35 pm

Thanks aplenty

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walshlg
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Re: Extruder Offset X or Y??

Postby walshlg » Sat Dec 10, 2016 9:36 pm

BTW - use wipewall -> since those layers are supposed to line up on top of each other you can get a rough idea of offset error after just 2 layers- > to make it quicker I also start with the raft only 2 layers thick. To get the fine resolution, increase the Z scaling by 2x and print 100um layers at a printspeed of 20

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walshlg
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Re: Extruder Offset X or Y??

Postby walshlg » Sat Dec 10, 2016 9:38 pm

also, I modified this object so the lower left corner is cutout. That helps figure out alignment when you go back a week later. Also keep notes on each alignment print
http://www.thingiverse.com/thing:1741265

Omojesu
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Re: Extruder Offset X or Y??

Postby Omojesu » Tue Dec 13, 2016 4:25 pm

Thanks walshlg!


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