SoliForum - 3D Printing Community — calibrated steps/mm and extrusion multiplier... but overextrudes fill

Re: calibrated steps/mm and extrusion multiplier... but overextrudes fill

null@example.com (heartless) — Wed, 10 Feb 2016 13:15:06 +0000

the relationship between nozzle size and extrusion width is 120%

nozzle of 0.40 x 120% = 0.48 extrusion width
nozzle of 0.35 x 120% = 0.42 extrusion width
and so on..

Re: calibrated steps/mm and extrusion multiplier... but overextrudes fill

null@example.com (driggers) — Wed, 10 Feb 2016 00:23:38 +0000

Thanks for your answers! It seems there were two problems, both between the chair and the printer.

1. I didn't have my width set to 0.48.

2. I was squeezing the callipers too hard, and reading .45 instead of .65.

My .4 infill is looking much better now.

Re: calibrated steps/mm and extrusion multiplier... but overextrudes fill

null@example.com (carl_m1968) — Tue, 09 Feb 2016 23:54:42 +0000

With a .4 nozzle your width should be .48 which is the standard..

Re: calibrated steps/mm and extrusion multiplier... but overextrudes fill

null@example.com (IanJohnson) — Tue, 09 Feb 2016 23:45:24 +0000

Is the single wall a single perimeter or a thin wall? Are you using S3D? S3D can do odd things if it isn't a single perimeter/no fill solid cube.

You can also take the approach of printing 100% infill, pull back the flow rate slider, and ease it in until the gaps disappear. I often find that the flow settings that make a correct extrusion width don't always give correct results for solid fill. .4 might be getting close enough to solid to use the other approach.

calibrated steps/mm and extrusion multiplier... but overextrudes fill

null@example.com (driggers) — Tue, 09 Feb 2016 22:58:25 +0000

I recently installed e3d on my SD2 and have ironed almost all kinks.

The latest is that when I do .4 infill, it overextrudes and looks like this: https://www.simplify3d.com/support/prin … ch-plastic

It shouldn't. I've done 40% infill before and that didn't happen.

I have calibrated steps/mm and set it in firmware. I have tested a single walled print and set the extrusion multipler (to 0.99, miraculously).

I have entered an average of measurements of the filament diameter.

My e3d tip is .4mm, and my layer height is .3, extrusion width 0.42. I've read this might be wrong but I can't seem to find a guide to the relationship with the larger tip.

Printing at 230 (e3d's thermistor).

Any thoughts / help?