3D Printing (ASA) problems (Page 3/4)
Synthesis FEB 23, 08:30 PM
In default Marlin, there is a DEFAULT_STEPPER_DEACTIVE_TIME setting that will automatically turn your steppers off after a period of time when the print ends or the machine pauses for filament changes.
If you were to find a copy of Marlin with the config for your board/printer, you could modify a couple of features in there that would prevent the steppers from disengaging while paused. This would prevent the Z from moving when changing filament unless you REALLY torque the hell out of it.
skywurz FEB 23, 11:21 PM
i don't think the ender 3 max hotend is rated for ASA temps. The stock Bowden tube won't deal with it you would have to upgrade to Capricorn tube or go direct drive. At those temps the stock ptfe starts to break down and clog your nozzle. Creality is also so so on QC.
Cliff Pennock FEB 24, 05:02 AM

quote
Originally posted by MidEngineManiac:

I got fed up with it and went back to a bowden with a top-mount extruder. No problems since....



In the future, I would like to experiment with TPU so probably need to switch to direct drive anyway.


quote
...well, except for blowing up a mobo and I'll get a 4.2.7 when this move is over.



I thought about that too. Mine still has the 4.2.2 board which was known for its faulty stepper drivers. The shop where I purchased this though, claims these 4.2.2 boards are the "new batch" which no longer have that problem. I would have changed to the 4.2.7 board just to be sure (since they are only $30 or so) if weren't for the fact I also want to install a BLTouch or CRTouch soon which won't work on the 4.2.7 board...
slicknick FEB 24, 08:36 AM

quote
Originally posted by Cliff Pennock:


I thought about that too. Mine still has the 4.2.2 board which was known for its faulty stepper drivers. The shop where I purchased this though, claims these 4.2.2 boards are the "new batch" which no longer have that problem. I would have changed to the 4.2.7 board just to be sure (since they are only $30 or so) if weren't for the fact I also want to install a BLTouch or CRTouch soon which won't work on the 4.2.7 board...



Sucks to drop the cash, but pick up an SKR mini and something like a Hemera, leave that Creality stuff in the dust.

As mentioned above, if you ran super hot and you don't have an all metal hotend, you may have damaged your PTFE lining and are binding up. Can you run something easy like PLA with no issues after all of this experimenting? Something to ground yourself.
Cliff Pennock FEB 24, 08:52 AM
I've tried printing something with PLA but got massive under extrusion. I've ordered some Capricorn tubing.

A Micro Swiss hot end is around $100, but for only $10-$20 more, you can buy the Micro Swiss direct drive extruder whi h includes the all metal hot end as well.

I'll see what the Capricorn tubing does. I suspect the default tubing got messed up since I've been doing a lot of 18+ hour PETG prints these past weeks
skywurz FEB 24, 01:59 PM
I have a CR-30 im pretty sure it's the same extruder and hotend. My ptfe tube started falling apart really quick with printing PETG. I was proactive and had swapped to Cap tube early and didn't clog my nozzle. In the past i have had nozzle and extruding issues that was caused by broken down ptfe and had to replace the nozzle. ...
What im saying is it's probably a good idea to swap your nozzle again once you get the cap tube.

Also what method did you use to calibrate your ESteps? I find using a light color filament and measuring 110mm from the entrance of the extruder towards the spool and marking the filament with sharpie then running 100mm of filament and remeasuring is best.

What slicer are you using?
Cliff Pennock FEB 25, 02:04 AM

quote
Originally posted by skywurz:

Also what method did you use to calibrate your ESteps? I find using a light color filament and measuring 110mm from the entrance of the extruder towards the spool and marking the filament with sharpie then running 100mm of filament and remeasuring is best.



Which is exactly what I did


quote
What slicer are you using?



PrusaSlicer (latest stable version)
MidEngineManiac FEB 25, 01:28 PM
Just got this in the email. 25% off Micro Swiss stuff. Yes they ship to the USA free and I am pretty sure EU too, but charge shipping.

https://3dprintingcanada.co...2xC0xr7IcE%3D.JwGPs4
skywurz FEB 25, 10:57 PM

quote
Originally posted by Cliff Pennock:


PrusaSlicer (latest stable version)



Ah yeah I tend to shy away from Josef's projects so I dont have any tips for you there. I recently started using Ideamaker after years of using Simplify 3d and Cura. I did a bake off many years ago and Cura was the pretty prints while S3d allowed me to do some interesting things. Since S3d has not updated in years and I bought a belt printer that has limited slicer options. I decided to move all of my printers under ideamaker. Ideamaker has community printer profiles and I like its octoprint interface.

[This message has been edited by skywurz (edited 02-25-2022).]

Jefrysuko FEB 27, 01:15 AM

quote
Originally posted by Cliff Pennock:

my DIY 3D printer (which prints great but has a small 20mm x 20mm bed and I needed to print larger things)




20 x 20 is tiny! I'd like to hear more about this and what you print on it. Keychains?