reibuehl wrote:For PLA this is really strange - especially with such small objects like the robot. I always use 60°C for PLA - often without glue, sometimes with glue - but don't see such warping. But I also haven't used Ultimaker PLA in a long time. Have you checked the bed to nozzle distance recently? I had bad bed adhesion in the past when I didn't level the bed after a nozzle change.
Indeed I never go beyond 60C without glue or anything, just a very clean glass and OFC calibration calibration calibration.
UM2 Automagic calibration assumes 0.1 gap while doing it. So to force it to squish to the bed use a 0.05-0.08 gauge feller.
Re: Crappppp Ultimaker 2+ feeder
Posted: November 5th, 2016, 4:22 am
by Izzy
Also check your fan speed,
Try 50'c for the bed, and 0 fan speed for the 1st layer at 0.2mm thickness.
Then increase the fans over the next 5mm to full.
Re: Crappppp Ultimaker 2+ feeder
Posted: November 5th, 2016, 6:17 am
by Dim3nsioneer
LePaul, Have you checked if all scres the bed pcb is mounted on the platform with are completely sunk into the pcb? As it is a refurbished UM2+ one has to check for UM2 problems as well.
Re: Crappppp Ultimaker 2+ feeder
Posted: November 5th, 2016, 12:25 pm
by LePaul
Yes bed is fine. Note the skirt shows flattened filament
Quite a riddle!
Re: Crappppp Ultimaker 2+ feeder
Posted: November 5th, 2016, 2:34 pm
by Dim3nsioneer
Yes, levelling can be fine but if only one of those screws is protruding a bit this could result in a 'cold' spot on the glass. And then goes the adhesion. This was quite often an issue with the earlier UM2s.
Re: Crappppp Ultimaker 2+ feeder
Posted: November 5th, 2016, 4:08 pm
by LePaul
Good point. I'll inspect it
Re: Crappppp Ultimaker 2+ feeder
Posted: November 5th, 2016, 5:31 pm
by LePaul
I'm starting to think it might be the filament.
I need to do some tests with the remaining ColorFabb material and see how that sticks
Re: Crappppp Ultimaker 2+ feeder
Posted: November 5th, 2016, 6:03 pm
by Neotko
IMO I always had bad experiences with silver plas from formfutura (horrible) and um (less but still). I suppose makes sense that something with extra shiny particles cools slower.
Re: Crappppp Ultimaker 2+ feeder
Posted: November 5th, 2016, 6:14 pm
by LePaul
So...since the filament temps are controlled in the Ulticontroller/display on the UM2...if you wanted to run something like nGen, how to you program the temp into the machine....since it seems absent on Cura
Re: Crappppp Ultimaker 2+ feeder
Posted: November 5th, 2016, 6:17 pm
by Neotko
I suppose tou can make a new material profile? Or um2 doesn't have that?
Re: Crappppp Ultimaker 2+ feeder
Posted: November 5th, 2016, 6:29 pm
by LePaul
I don't know....Let me move that question to the nGen filament area
Re: Crappppp Ultimaker 2+ feeder
Posted: November 5th, 2016, 6:45 pm
by LePaul
LePaul wrote:I don't know....Let me move that question to the nGen filament area
I think I'll put in the suggested temps and fan settings, leaving the retraction stuff to Cura
Re: Crappppp Ultimaker 2+ feeder
Posted: November 5th, 2016, 8:46 pm
by LePaul
Edited the MATERIAL.TXT file and used 230C for nozzle, 80C for bed and 50% fan. I also used their 45 mm/sex retract speed and 4.5 mm distance
Trying a robot print with nGen. You can see it looks good so far. And you can hear the retractions at work
Re: Crappppp Ultimaker 2+ feeder
Posted: November 5th, 2016, 9:26 pm
by LePaul
I think I like nGen after all
Re: Crappppp Ultimaker 2+ feeder
Posted: November 6th, 2016, 8:02 am
by Titus
Nice Paul! It's such a shame you keep running into troubles. But that is a sweet looking ultibot. Just the cooling of the right antenna seems to be off, but overhangs are sweet!