woofy
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Posts posted by woofy
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Ultimakers' pt100 design is well protected against electrical noise. I would not expect any problems with it.
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Ha!
I found it - you sneaky lot.
:-P :-P :-P :-P :-P :-P :-P :-P
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Time to kidnap the cat :-|
CRIKEY!
You must be tired of living :eek:
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I agree with gr5.
The gain of the instrumentation amplifier (10) is what is needed to take a pt100 up to 4.88mV per degree. And as the arduino has a 10 bit A/D, 5/1024 is 4.88mV. The output from the A/D is one count per degree.
Oh, and the schematic says its a pt100
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very nice ! :smile:
how fast did you print ? the over hang on the large opening is very nice !
Ian :smile:
30mm/sec, 0.1 layer, 230C, UM Blue
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I was printing the brim of a box at the time. Those 16 moves amounted to 1.44 meters of travel. At 20mm/sec that's 72 seconds of cooling of the head while still trying to print.
Is keeping the nozzle heated during this time possible?
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My latest overnight print is a box for an electronics module which includes a 15mm square cutout.
The UM2 printed this perfectly without any supports.
I'm Impressed!
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UM2.
I have a feeling this has been discussed before but I can't find it.
When aborting a print it takes a few moves before it actually aborts, probably because of some internal buffering. The problem is that the nozzle cooling starts immediately on aborting and is way too cool by the time the abort happens. The extruder has started skipping on the same section of filament.
Could the buffer be flushed on abort so it stops immediately, or if that's not possible could the nozzle temperature be maintained until it does the abort.
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Ah!
Thanks for pointing to Daid's post, that explains it.
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Hi,
RetractWhileCombing is a great plugin.
Could you add a second layer set as well. Combing causes lines on the bottom surface as well that I would like to avoid.
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I've run into this again today. I've been struggling with extrusion issues, so I've been using Move Material a lot. It suddenly stopped working, the stepper not rotating or making its normal stepping sound. The only way to fix it was to re-boot the printer. I don't know how to trigger the issue though, its only happened a couple of times.
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. .is way off.
Cura estimates my current print to be 10Hrs 33mins.
Its been running about 90mins so far and my UM2 reports another 26Hrs print time.
I'm printing a box - base and side walls. The first few layers, the base of the box, are very time consuming but it will speed up layer times when it gets to just the side walls.
Could it be that marlin calculates based on layer times?
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Ah.
That will teach me not ro assume UM2's :oops:
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What you print is from the sd card, so yes you can print what you like on each machine.
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When are we going to be able to purchase UM2 spare parts?
I would at least like to see all the hotend and extruder parts available. I would purchase a set now if available. I'm having extrusion issues and am reluctant to do much in case of damage and no backup spares.
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I wonder if the stepper motor is faulty, maybe the magnets are not as strongly magnetised. I have no idea what the flux density variation between motors is. It could be worth trying another one.
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Thanks, I'll try that when I get back.
I'm now away for a few days holiday (chasing the northern lights, of all things)
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I'm not getting anywhere near illuminarti's results. Today I spent time stripping the hot end down and cleaning it all out and that improved things greatly.
I also upped the temperature to 230C for the above. The extruder gear is not slipping on the filament, it's just that the motor jumps backwards and that is when it under extrudes. I'm as sure as I can be that the extruder motor is under powered. Is there any way to increase this? A gcode instruction maybe?
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I guess I have a major problem then :sad:
printed with ultimaker blue at 220.
There's a hi-res here.
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I think there were some errors uploading 14.01 which daid has now corrected, try downloading it again and reinstalling it. Make sure you update the printer as well.
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Excellent do it for science! If your GF says anything just threaten to print out a replacement for her. I'm interested to hear your results.
In the ABS slurry, or the 3D printed girlfriend? :cool:
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The excessive retract bug is fixed in Daid's latest test code. I'm using it and it works. There's an issue with the new cool down temperature display but that's just cosmetic.
Use lRobertl's link above to get it.
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Hi Daid,
Wow! that was fast :cool:
Just tried the new version. The retraction bug seems fixed, but only did one abort.
I like it that you now show the bed temperature on cool down, however it is displayed partly over the temperature bar. There should be plenty of space on the same line beside the nozzle temperature .
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Are you using the Filament Guide that snaps in the back on the UM2?
I tried that and abandoned that as it adds a lot of extra drag, especially on almost empty reels.
UM2 - how to save settings
in UltiMaker Cura
Posted
I need to print at 230C but the default is 210C (I'm sure it used to be 220C).
How do I set it to 230C, because I keep forgetting to increase it and 0.1, 210C at 40mm/Sec causes under extrusion.