BFB (G-Code) for Cube 3

[buddybu]

Yeah, I think that is BFBLIB, I am looking at where we send the file to the printer and working backward, or forward....

[sirmavid]

I got a print driver to show up in Windows 10 over TCP/IP

[jssamp]

Is anybody still interested in adding to the list of G-code commands and what they do? I've found a few more that you probably know about already but I haven't seen before. Might be helpful to add to a compiled list.

G1 E_ F_ : Extrusion/Retraction, E is filament length in mm (negative for retraction), F is extruder speed in mm/minute.
The E & F parameters can be used together with X, Y, Z.

[TommyDee]

Nice find!

[jssamp]

Question for you @TommyDee. How far did you get with the build configs? I was poking around and it looks like the values of the parameters there match up nicely with the gcode parameters in print files. For example:

<ZJumpDistance>2</ZJumpDistance>
<ZJumpVelocity>60</ZJumpVelocity>
<ZJumpMinVectorThreshold>5</ZJumpMinVectorThreshold>

matches M601 P2 S60 F5 in the init section of an Eko print file.
Therefore, M601 seems to control Z Jumps. It could just be a matter of figuring out the meaning behind the parameter names in the config files, and we could gain fuller control of the Cube3.

This is probably old news to you and I am getting excited about something you have tried and found won't work already.

[TommyDee]

I went through a lot of cross-referencing known commands. My limitation was changing these DLLs. However, yes, Writing an interface to these DLLs can open 3DSystems Cube printers up fully. Making tweaks to them and recompiling the DLL is certainly a step forward though. I wonder if John's looked into this yet...

[jssamp]

It looks like M240 controls acceleration and jerk.

M240 X450 Y450 ; initial acceleration
M240 S500 ; jerk (units?)

[TommyDee]

That is what I was chasing in the DLLs - the exact operation those last pair of options do. I've changed them and run the printer and it affects the way the filament driver resumes. IIRC, it also controlled the retraction speed.

[jssamp]

How did you do vase mode? I have some parts to print in TPU. They are basically tapered seals. The inverted cone could print well without stopping. Did you have to use Cura to slice it?

[TommyDee]

I used Cura's BFB profile to get a raw BFB on the 'spiral' setting, or whatever it was called.
I edited the pressure and velocity values to taste and went for it.

I had to take a few bad calls out of there, IIRC.