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Printing issues ...
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Yes, that layer height was bad - lowering it, and I'm getting reasonable prints. For temp, I slowed down to 20mm but it seems reasonable that if I would eventually be able to go faster. Perhaps with a fan.
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electronrancher
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Printing
I found that just warming the nozzle would allow me to grab out chunks of abs with tweezers. Just like pushing in fresh filament, it tends to want to stick to itself. Then an overnight soak in acetone or MEK and it's as good as new.
by
electronrancher
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Printing
You are right. After a hot end teardown and rebuild I suspected as much. I spent the last few days rigging a ducted fan for the top of the hot end and the spotty, stringy "looks like temp too low" behavior is gone. It must have been PLA-lock due to the filament expanding in the PTFE. So thank you!
My extrusion still isn't ideal - I'm getting walls that don't quite adhere and have little void
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electronrancher
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Printing
brnrd Wrote:
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> I think the 3M blue painters tape has a plastic
> coating. Not sure what kind it is but it's
> probably compatible with PLA but not ABS. From the
> wiki, PLA is actually a poly-ester even though
> it's made from polymerizing lactic acid.
This is the first time I've seen this written about 3M tape, but I agree
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electronrancher
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Polymer Working Group
Sadly, I bought 5lb of black Botmill PLA and can't print it worth anything. This is my first use of PLA after only printing ABS, of which I got great results. Here are my issues, maybe you can help.
At "normal" 4043D (I assume) temp of 180C, it doesn't extrude. Gradually tweaking the temp up until it DOES extrude smoothly gives a filament that sags and can't hold a thin wall. Non heated ka
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electronrancher
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Printing
Thanks guys!
I do hope to keep it in arduino platform with standard bootloader, as I think it will be more easily accepted by the general population. So there is benefit in reducing the size.
13902 with just X,Y,Z, and no software stops. Great advice, thank you Traumflug!
13926 with X,Y,Z,E and no soft stops. I will need to look into why those softstops take so much room. But this is a grea
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electronrancher
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Firmware - experimental, borrowed, and future
Thank you, James.
I will try Arduino 0018 this weekend. I agree that changing to a different bootloader, or deleting the loader entirely will probably fit it. But the use of the term arduino seemed that it must have included all the baggage of the libs and bootloader.
By the way, great tip on the "bouncy" limit switch - that's a nice hack I will keep it in mind. Let me give this a shot on ar
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electronrancher
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Firmware - experimental, borrowed, and future
Hello All,
With all the Arduino talk, I thought this would be a snap and I'm still sure I'm doing something wrong. But try as I might, I cannot get arduino-0022 to fit even a stripped-down Teacup in a Diecimila 168. The smallest I've gotten is 14454 bytes using 3 axes and one heater in bang-bang.
So no extruder control, no hotbed, no endstops, no PID, thermistor only with a 20-entry table. T
by
electronrancher
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Firmware - experimental, borrowed, and future