i3 Pro B Extruder calibration

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deviate
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i3 Pro B Extruder calibration

Post by deviate » Fri Oct 06, 2017 4:42 am

I have been trying to calibrate my extruder.. I finally got the filament moving smoothly with no skipping.
I am editing Marlin firmware steps_per_unit , but it seems no matter what value I put in, the same amount is being extruded.
I'm using Repetier Host manual control - 50mm extrude with the single arrow - I am thinking this speed is constant and not connected to the steps_per_unit in firmware.
I have tried values of 100-1000 in firmware, it always seems to extrude ~100mm when I tell it to do 50 on manual control.
How do I extrude at the speed set in the firmware?

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William
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Re: i3 Pro B Extruder calibration

Post by William » Fri Oct 06, 2017 2:28 pm

There is a video about how to calibrate extruder.
https://www.youtube.com/watch?v=fb7lit5 ... e=youtu.be
-Keep your mind and try to test it. :)
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-You can ask me the questions and I will kindly reply.
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Rodribike
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Joined: Thu Mar 02, 2017 10:01 pm

Re: i3 Pro B Extruder calibration

Post by Rodribike » Wed Jan 24, 2018 3:31 pm

Hello!

I tried to do this but I made 3 times 100mm pushing and in thoses 3 cases I had 3 very different results...

1st I got 73 mm filament movement
2nd 69.3mm
3rd 77.5mm

So 3 very differen results
Is this normal? What this values man? Under extrusion?
I used pla with 215°c extruding temperature

Can you help please?

Thanks

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William
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Re: i3 Pro B Extruder calibration

Post by William » Thu Jan 25, 2018 4:47 pm

You should calibrate X, Y, Z step per mm
You can refer to this video

https://www.youtube.com/watch?v=Wk3qYOB4E9I
-Keep your mind and try to test it. :)
-Everything will be fun!-Support all Getech printer.
-You can ask me the questions and I will kindly reply.
-Respect others is the best way you can get help!

Rodribike
Posts: 1
Joined: Thu Mar 02, 2017 10:01 pm

Re: i3 Pro B Extruder calibration

Post by Rodribike » Sat Feb 17, 2018 8:28 am

X Y and Z are calibrated with that method

But for the extruder is complicated. I measured the lenght that the filament moved when I Press 100mm to move but it doesnt move constant. ..
I did 3 measures and all with diferent values like 89mm, 94mm and 82mm
So I made the average, changed the value in configuration.h and the cube dimentions increase 0.3mm in x and y (maybe over extruding) (I printed a 10x10mm cube)
Then I changed again for the default value and 10.05mm in x and y dimentions (perfect). Problem: the cube is not with sharp corners, see this link

https://d33v4339jhl8k0.cloudfront.net/d ... vkclZQ.jpg

https://support.3dverkstan.se/article/3 ... d-printing

How can I calibrate my printer so it can make sharp edges?

Can anyone help?

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William
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Re: i3 Pro B Extruder calibration

Post by William » Sun Feb 18, 2018 9:54 pm

I think you should decrease the speed difference between inner and outer
-Keep your mind and try to test it. :)
-Everything will be fun!-Support all Getech printer.
-You can ask me the questions and I will kindly reply.
-Respect others is the best way you can get help!

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