Search found 215 matches

by swbluto
Mon Nov 30, 2015 2:15 am
Forum: Tech Support
Topic: Temperature overshoot issue
Replies: 8
Views: 8852

Re: Temperature overshoot issue

If this was supposed to do that, then how come it didn't do that before? Because in previous versions it heated up slower? That's the thing about PID control loops, there's a tradeoff between overshoot and the ramping speed. See this image from wikipedia for a basic understanding. https://upload.wi...
by swbluto
Mon Nov 30, 2015 1:24 am
Forum: Tech Support
Topic: My glass beds are too clean for PLA?
Replies: 10
Views: 12107

Re: My glass beds are too clean for PLA?

It's so bizarre how the White Hatchbox PLA sticks like none other to my first printer, but it barely sticks at all to my other ones. Granted, it appears the full roll doesn't stick nearly as well as the half-used roll even on this printer, but at least one of the rolls work. Wonder why the full roll...
by swbluto
Sun Nov 29, 2015 10:28 pm
Forum: Tech Support
Topic: problem in printing
Replies: 12
Views: 12031

Re: problem in printing

I suspect that the filament is skipping, too. Usually happens to me when:

Tension is too tight
Unusually high resistance in the extruder and/or tube
Extrusion temperature is too low
by swbluto
Sun Nov 29, 2015 10:08 pm
Forum: Tech Support
Topic: Temperature overshoot issue
Replies: 8
Views: 8852

Re: Temperature overshoot issue

Yeah, it's supposed to do that. The way to diminish the overshooting is by increasing the dampening factor in the PID control loop (Essentially slow down how quickly it heats up). One way to possibly fix this is by modifying the G-code (Instead of going straight from 20 to 230, go to 225, and then 2...
by swbluto
Sun Nov 29, 2015 5:55 pm
Forum: Tech Support
Topic: My glass beds are too clean for PLA?
Replies: 10
Views: 12107

Re: My glass beds are too clean for PLA?

The bed temperatures were exactly the same (70C) but there seems to have been a difference in the extruder temperature. The highest temperature I could measure from the cartridge was 170-180C, while the printer thought it was at 210C, so I didn't have access to the temperature the temp sensor was me...
by swbluto
Sun Nov 29, 2015 5:33 pm
Forum: Tech Support
Topic: My glass beds are too clean for PLA?
Replies: 10
Views: 12107

Re: My glass beds are too clean for PLA?

So, one of the printers that could do PLA is now down for maintenance, so now I only have one that can do it. I switched out the "works with PLA" glass bed to another printer that didn't work, and I suspected it would work but... surprisingly... it didn't. HUH, that's weird! I'm seeing three variabl...
by swbluto
Sun Nov 29, 2015 1:09 am
Forum: Tech Support
Topic: My glass beds are too clean for PLA?
Replies: 10
Views: 12107

Re: My glass beds are too clean for PLA?

windex on a preheated bed works for me. I scrape any dust off with a razor first then windex it. I have problems with smaller parts, but use purple glue on the glass for those. Googling "windex ingredients"... The Sam Wise patent [clarification needed] #3,463,735 lists example formulae, one of whic...
by swbluto
Sat Nov 28, 2015 11:10 pm
Forum: Tech Support
Topic: My glass beds are too clean for PLA?
Replies: 10
Views: 12107

Re: My glass beds are too clean for PLA?

Okay, results are in. I tried out some of this "Trader Joe's Dishwashing Liquid with essential oils" and noticed it left a barely visible oily streak across the glass pane. I did my regular wet-rag/dry-wag clean up, and tried printing and it kind of worked! The adhesiveness definitely improved, but ...
by swbluto
Sat Nov 28, 2015 8:53 pm
Forum: Tech Support
Topic: My glass beds are too clean for PLA?
Replies: 10
Views: 12107

Re: My glass beds are too clean for PLA?

I have the same experience with far less adhesion for PLA on glass when cleaning with acetone. Dish washing liquid, vinegar and a thorough rinsing in the sink works for me. http://forums.reprap.org/read.php?1,146446,146868 Oh yeah, we got a lead. I'll try dishwashing liquid and vinegar soon on the ...
by swbluto
Sat Nov 28, 2015 8:39 pm
Forum: Tech Support
Topic: problem in printing
Replies: 12
Views: 12031

Re: problem in printing

Looks like where x-speed is minimal, the printing quality is okay. This suggests there might be something with your X-axis motor. Check set screws, belt tightness and making sure all the wires are connected okay and everything looks intact. If you're noticing bending stress at a particular point in ...