Purgeline on Delta

tecno

Hi, I use Simplify3D and would like to have following in start gcode.

Purgeline to go anticlockwise from 9 o'clok to 6 o'clock.

G3 X0 Y-85 R85 will not work so what am I doing wrong?

Rushmere3D

@tecno Do you not need an E value?

tecno

@rushmere3d
G28
G1 X-80 Y0 Z0.4 F3000 ; move to arc start
G3 X0 Y-80 R80 Z0.4 E40 F400 ; lay arc stripe 90deg

No arc as you can see

alankilian

G1 X-80 Y0 Z0.4 F3000 ; move to arc start
G3 X0 Y-80 R80 Z0.4 E40 F400 ; lay arc stripe 90deg

I use ncviewer.com and I do get an arc.

Also, when I run on my Rostock Max V3.2 with a DUet2/Ethernet, I get an arc.

tecno

It looks like SF3D is not working with R.

So how to write same with I and J ??

alankilian

For this arc, you can replace the R80 with I80 and get the same arc.

Unfortunately, the S3D preview doesn't show that either.

The gcode previewer I linked to works perfectly for your experiments.

alankilian

@tecno Also, it doesn't really matter that S3D preview doesn't show the arc, the printer will perform the action even if the previewer doesn't.

So, I would put the purge line in S3D's starting script and just remember it's there for when you don't want a purge line.

tecno

OK, thanks for this Alan. Will have to try this out then.