Crappppp Ultimaker 2+ feeder

Discussions concerning the Ultimaker 2 / Ultimaker 2+ series of printers, including the Ultimaker 2 Go
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Neotko
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Re: Crappppp Ultimaker 2+ feeder

Post by Neotko » November 5th, 2016, 3:26 am

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.

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Re: Crappppp Ultimaker 2+ feeder

Post by Izzy » November 5th, 2016, 4:22 am

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.
Izzy.

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Re: Crappppp Ultimaker 2+ feeder

Post by Dim3nsioneer » November 5th, 2016, 6:17 am

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.

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Re: Crappppp Ultimaker 2+ feeder

Post by LePaul » November 5th, 2016, 12:25 pm

Yes bed is fine. Note the skirt shows flattened filament

Quite a riddle!

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Re: Crappppp Ultimaker 2+ feeder

Post by Dim3nsioneer » November 5th, 2016, 2:34 pm

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.

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Re: Crappppp Ultimaker 2+ feeder

Post by LePaul » November 5th, 2016, 4:08 pm

Good point. I'll inspect it

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Re: Crappppp Ultimaker 2+ feeder

Post by LePaul » November 5th, 2016, 5:31 pm

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

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Re: Crappppp Ultimaker 2+ feeder

Post by Neotko » November 5th, 2016, 6:03 pm

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.

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Re: Crappppp Ultimaker 2+ feeder

Post by LePaul » November 5th, 2016, 6:14 pm

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

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Re: Crappppp Ultimaker 2+ feeder

Post by Neotko » November 5th, 2016, 6:17 pm

I suppose tou can make a new material profile? Or um2 doesn't have that?

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Re: Crappppp Ultimaker 2+ feeder

Post by LePaul » November 5th, 2016, 6:29 pm

I don't know....Let me move that question to the nGen filament area

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Re: Crappppp Ultimaker 2+ feeder

Post by LePaul » November 5th, 2016, 6:45 pm

LePaul wrote:I don't know....Let me move that question to the nGen filament area
Kind of found my answer...

https://ultimaker.com/en/resources/2098 ... aker2-plus

I think I'll put in the suggested temps and fan settings, leaving the retraction stuff to Cura

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Re: Crappppp Ultimaker 2+ feeder

Post by LePaul » November 5th, 2016, 8:46 pm

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


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Re: Crappppp Ultimaker 2+ feeder

Post by LePaul » November 5th, 2016, 9:26 pm

I think I like nGen after all
IMG_4633.JPG

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Re: Crappppp Ultimaker 2+ feeder

Post by Titus » November 6th, 2016, 8:02 am

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!

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