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3D Printers

Started by Lazybones, February 27, 2017, 11:46:57 AM

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Lazybones

Quote from: Tom on July 27, 2017, 05:26:58 PM
I have been messing with this thing so much the past few days. Oy. I have had clogs in that separator tube SO many times. So annoying. But, it may have been partially PEBKAC. I had turned the fan down at some point, as its loud AF and rattles like mad. But it may not have been enough cooling, and was causing heat creep making the pla soft /outside/ of the actual extruder, which let it coil up inside the ptfe tube and bowden tube fitting.

https://www.youtube.com/watch?v=0M6e9e-NzOA

Got it all fixed. The tip was also clogged after all that. After a bit of playing with heat and filament, and a drill, its all clean ;D

It's running a stringing test and working well again so far. It took some time to get the bed levelled this time for some reason. Good thing I found this neat little model for helping with bed levelling. Still got some slight adhesion issues around left and right, but it could just be the bed being warped.

The next real print I do is the adaptor for the E3D extruder.

Be careful, if the adaptor is close to the hot end or touches the cooling fins it probably has to be printed with ABS or maybe PETG. PLA will probably melt.

Tom

Quote from: Lazybones on July 27, 2017, 06:05:15 PM
Quote from: Tom on July 27, 2017, 05:26:58 PM
I have been messing with this thing so much the past few days. Oy. I have had clogs in that separator tube SO many times. So annoying. But, it may have been partially PEBKAC. I had turned the fan down at some point, as its loud AF and rattles like mad. But it may not have been enough cooling, and was causing heat creep making the pla soft /outside/ of the actual extruder, which let it coil up inside the ptfe tube and bowden tube fitting.

https://www.youtube.com/watch?v=0M6e9e-NzOA

Got it all fixed. The tip was also clogged after all that. After a bit of playing with heat and filament, and a drill, its all clean ;D

It's running a stringing test and working well again so far. It took some time to get the bed levelled this time for some reason. Good thing I found this neat little model for helping with bed levelling. Still got some slight adhesion issues around left and right, but it could just be the bed being warped.

The next real print I do is the adaptor for the E3D extruder.

Be careful, if the adaptor is close to the hot end or touches the cooling fins it probably has to be printed with ABS or maybe PETG. PLA will probably melt.
Good point. I'll have to check.
<Zapata Prime> I smell Stanley... And he smells good!!!

Tom

I'm going to attempt the swap with pla. managing to find a time to print abs or petg myself will be fun. and some people have had decent luck with pla to begin with.

It may be enough to allow me to use the new hotend while waiting for a more robust material. I have ordered some PETG, as ABS is not an option to print at home with for the near future.
<Zapata Prime> I smell Stanley... And he smells good!!!

Tom

Printed this last night. Came out OK. Shows I need to tweak things a little.
<Zapata Prime> I smell Stanley... And he smells good!!!

Lazybones

Quote from: Tom on July 28, 2017, 10:50:46 AM
Printed this last night. Came out OK. Shows I need to tweak things a little.

Turned out fairly good.

Reminds me of this https://learn.adafruit.com/talking-d20-20-sided-gaming-die/overview

Lazybones

You may also want to check out some of these dice towers https://www.thingiverse.com/search?q=dice+tower

Tom

Quote from: Lazybones on July 28, 2017, 11:02:54 AM
Quote from: Tom on July 28, 2017, 10:50:46 AM
Printed this last night. Came out OK. Shows I need to tweak things a little.

Turned out fairly good.

Reminds me of this https://learn.adafruit.com/talking-d20-20-sided-gaming-die/overview
I looked at that model, thought about it. But wanted a quicker print :D
<Zapata Prime> I smell Stanley... And he smells good!!!

Lazybones

I think Cura has a time estimator it it but I don't recall if it is very good.

I like to drop the gcode into these tools before I print larger stuff to get a good idea on how much time they will take.
http://gcode.ws/# or http://www.gcodeanalyser.com/

Still highly variable, on multi hour prints I find the above two to be accurate to within 20-30min.

Tom

Hm, yeah, cura estimated 7h26m for this adapter print, but ended up taking 9h20m. So I think I'll have to take your advice on that for sure.
<Zapata Prime> I smell Stanley... And he smells good!!!

Lazybones

Quote from: Tom on July 28, 2017, 11:52:25 AM
Hm, yeah, cura estimated 7h26m for this adapter print, but ended up taking 9h20m. So I think I'll have to take your advice on that for sure.

Time estimates are actually surprisingly hard as the printer it self has rate limiting in it to prevent going over certain accelerations etc.

The head is constantly speeding up and slowing down so the amount of time it spends at the allowed maximum is sometimes low and and starting and stopping too fast can shake the hell out of the printer.

Tom

Quote from: Lazybones on July 28, 2017, 11:56:52 AM
Quote from: Tom on July 28, 2017, 11:52:25 AM
Hm, yeah, cura estimated 7h26m for this adapter print, but ended up taking 9h20m. So I think I'll have to take your advice on that for sure.

Time estimates are actually surprisingly hard as the printer it self has rate limiting in it to prevent going over certain accelerations etc.

The head is constantly speeding up and slowing down so the amount of time it spends at the allowed maximum is sometimes low and and starting and stopping too fast can shake the hell out of the printer.
It doesn't help cura doesnt have a built in profile for this printer. So whatever settings I have set are what it has to go by.
<Zapata Prime> I smell Stanley... And he smells good!!!

Lazybones

Quote from: Tom on July 28, 2017, 11:57:42 AM
It doesn't help cura doesnt have a built in profile for this printer. So whatever settings I have set are what it has to go by.

Finding good community profiles should not be hard.
https://github.com/BobRyan530/mp_select_mini

Tom

Quote from: Lazybones on July 28, 2017, 12:20:55 PM
Quote from: Tom on July 28, 2017, 11:57:42 AM
It doesn't help cura doesnt have a built in profile for this printer. So whatever settings I have set are what it has to go by.

Finding good community profiles should not be hard.
https://github.com/BobRyan530/mp_select_mini
Sadly the linux version is distributed in a AppImage bundle and won't look outside of itself for other files so I have to enter things manually.
<Zapata Prime> I smell Stanley... And he smells good!!!

Tom

I contacted Monoprice about the broken usb, and they were willing to send a replacement, but I mentioned the warped build plate, and now they want to do a swap. So I'll probably be out a printer for a couple weeks at least :(

SAD.

That said I've heard they are out of V1s, and may send a V2 as a replacement which has a much better print head.
<Zapata Prime> I smell Stanley... And he smells good!!!

Tom

I can not get gcode.ws to make an estimate for the benchy I just sliced :( :sad:

Cura says about an hour, so I bet it'll be like 1:30 or 2:00
<Zapata Prime> I smell Stanley... And he smells good!!!