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Author Topic: 3D Printer - OD vs ID Measurement  (Read 1000 times)

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3D Printer - OD vs ID Measurement
« on: September 19, 2015, 10:57:45 PM »
I built a 3D printer using MACH3 controller but have have a problem with the inside and outside dimensions.

I printed a 1" x 1" square with a .75" circle (opening)  in the middle of the square.  The square measures 1.003 x 1.004.
The circle however measures .73 - a fully .02" too small.

How can I adjust for this? 

Thanks.
Pete

Offline Davek0974

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Re: 3D Printer - OD vs ID Measurement
« Reply #1 on: September 20, 2015, 03:59:03 AM »
You don't really, the adjustment on 3d print is normally a function of the extrusion amount - too much extrude will make things bigger externally and smaller internally.

I use Slic3r for my 3d code generation and it has adjustments for the extrude width etc and must be calibrated every time a new roll of filament is added as they are all different and thicker filament=more extrude, naturally if you have a granule feeder then this will not apply.

Mach just does what the code tells it ;)
Bridgeport Mill, Mach3 V062, CSMIO-IP/A controller, AC Servo Drives