Welcome to the SeeMeCNC Community

Last night I spent some time trying to get cura 13 to work and was successful.

there are some nice features to cura, one thing I've noticed is that it never has to retract on print layers, its one continuous loop, I have it set to only retract over hole or gaps. It also seems to print faster but this could just be my settings. I had to make some adjustments to the start and end codes, so it would work with the rostock but far it seems to be working great.

Just wait until Daid releases his new engine... It's ridiculously fast at slicing. There are a lot of nice features in Cura that I like, and why I want to stick with it over RH. Quick question for you... Are you running the RH Firmware or the Marlin still? I would imagine the Marlin? And you are just generating G-Code with it, correct? Not printing directly from it?

MSURunner wrote:Just wait until Daid releases his new engine... It's ridiculously fast at slicing. There are a lot of nice features in Cura that I like, and why I want to stick with it over RH. Quick question for you... Are you running the RH Firmware or the Marlin still? I would imagine the Marlin? And you are just generating G-Code with it, correct? Not printing directly from it?

im using repetier firmware, and just generating gcode with cura, not printing directly from it.

Is the RFW playing nice with the Marlin G-Code then? If so, that would be awesome!

its just gcode, has nothing to do with firmware, the only thing i really had to do was make changes in the start and end codes. Im still tweaking the settings but looks good so far.
right now i'm only using to generate my gcoded files. firmware may be important if you were to use the cura host?

Some firmware's operate off a different set of G/M values... Cura is what my UM is tuned with and it's very nice to use so I'm quite happy to hear the RFW uses the same G/M values then!

cura was made for the ultimaker and the ultimaker uses a bowden tube, so maybe it might be better suited for the rostock?

i wonder if we could get the cura host to work with the rostock... have you tried?

Can't right now, my board is supposed to be in the mail from SeeMe. But I would think it would print so long as you re-flashed it with a Marlin-based firmware and altered the printer dimensions. Since it sounds like the Repetier is using the same G-Code tables, it's probably similar enough to connect and run, though I haven't looked at all at the Repetier to determine if it handles accelerations differently than Marlin (which would be my guess) and therefore, the machine might function funny... If I was able to try it today I would! As is, I'm relying on you!

i'll tinker around with it more and see what happens, I'd imagine if this works combined with an all metal hotend, this thing should print stupid fast.
my other rostock is almost up and running, i'll try it with that one.

it seems that the feedrate may be handled differently, i set it to around 30mm per sec, and it still seems to move a heck of a lot faster than repetier.
so maybe this is a fimware thing?

Feedrate? You mean the max feedrate? Or are we talking travels/print speeds? Cura has a high travel speed to avoid ooze drag, whereas from what I've seen on Repetier, it's not nearly as fast.

I tried to use Cura has a g-code host earlier today. The connection attempted but was unsuccessful, my firmware is probably not compatible.

I tried Cura (thanks Cambo3d) and I do really like how it prints, so much quieter and faster without all of the retraction going on.

But I do have one issue with it, when I start a print it retracts so much that most of the first layer is starved for filament. Is there a way to turn this operation off or do have to dial the retraction setting way back?

I think it was set to 4mm...

Bill

maybe try setting your retraction so it only retracts past a certain distance. there's a setting for that in cura.

retraction minimal travel, is what its called.

I'll try that, thanks Cambo

Bill

I think by default Cura puts commands in the start gcode that may cause the filament retract at start. Try looking at start code and removing those extruder commands.

bplemmons wrote:I tried Cura (thanks Cambo3d) and I do really like how it prints, so much quieter and faster without all of the retraction going on.

But I do have one issue with it, when I start a print it retracts so much that most of the first layer is starved for filament. Is there a way to turn this operation off or do have to dial the retraction setting way back?

I think it was set to 4mm...

Bill

This is caused by the extruder not being reset. Insert "G92 E0" into the start.gcode file in CURA. This will stop the major retraction on startup.

That's what I was looking for, Thanks!!

Bill

xnaron wrote:

bplemmons wrote:I tried Cura (thanks Cambo3d) and I do really like how it prints, so much quieter and faster without all of the retraction going on.

But I do have one issue with it, when I start a print it retracts so much that most of the first layer is starved for filament. Is there a way to turn this operation off or do have to dial the retraction setting way back?

I think it was set to 4mm...

Bill

This is caused by the extruder not being reset. Insert "G92 E0" into the start.gcode file in CURA. This will stop the major retraction on startup.

I believe it's actually cuased by using absolute measurements for extrusion length. The printer is returning the extruder to the original location. I had a similiar issue whenever I would purge the extruder before starting a print. The E0 trick works, by resetting the extruder location, switching to relative extruder movement does as well. IMHO.