Search found 37 matches

by b8smat
Thu Nov 30, 2017 3:44 pm
Forum: Tech Support
Topic: Table falling down in a middle of a print
Replies: 9
Views: 2963

Re: Table falling down in a middle of a print

Doh! Nevermind. My problem is (mostly) just me being stupid. :oops: We sliced the part wrong and the raft and model were printing with different extruders. The first extruder (for the model) was at the wrong temperature (40C) so the firmware prevented cold extrusion after it finished the raft. It st...
by b8smat
Wed Nov 29, 2017 4:25 pm
Forum: Tech Support
Topic: Brims vs Rafts?
Replies: 11
Views: 7297

Re: Brims vs Rafts?

For large prints (approx. 8" in X or Y) we have given up using any technique other than rafts. We use a 0.3mm airgap when using 0.2mm step height, and 0.2mm airgap with 0.1mm step height. Bed cooling fan is disabled. Bed is at 70C.

This has pretty much eliminated all warping issues with large prints.
by b8smat
Wed Nov 29, 2017 4:14 pm
Forum: Tech Support
Topic: Table falling down in a middle of a print
Replies: 9
Views: 2963

Re: Table falling down in a middle of a print

I've just been experiencing a very similar problem but very early in the print (after just a few layers) The key difference is I see that the hot end had turned off also, so the even though the X/Y movement continues, nothing is extruded. Even though the bed had fallen to the bottom, the Z motor was...
by b8smat
Fri Aug 19, 2016 2:55 am
Forum: Tech Support
Topic: No temperature reading in Pronterface
Replies: 7
Views: 1654

Re: No temperature reading in Pronterface

You're right, it doesn't show anything useful with debug G-code enabled. AFAIK nothing has changed since the previous print. Although having said that, before this happened we had just hit (what I've been assuming is a completely unrelated problem) of very poor prints. As if the feed rate is wrong. ...
by b8smat
Fri Aug 19, 2016 1:10 am
Forum: Tech Support
Topic: No temperature reading in Pronterface
Replies: 7
Views: 1654

Re: No temperature reading in Pronterface

I know that both Rx and Tx work because if I remove the SD card, I don't get the last message that says the SD card is ok (it says it failed instead) But after that, if I send an M105 command, I only see the Rx LED flash once. I never see the Tx LED flash ever again. (Which is consistent with what I...
by b8smat
Thu Aug 18, 2016 11:28 pm
Forum: Tech Support
Topic: No temperature reading in Pronterface
Replies: 7
Views: 1654

Re: No temperature reading in Pronterface

Here is the output (this is on Windows 7) Connecting... start Printer is now online. echo: External Reset Marlin 1.0.0 Using tool 0. echo: Last Updated: Apr 26 2015 20:59:26 | Author: (none, default config) Compiled: Apr 26 2015 echo: Free Memory: 4141 PlannerBufferBytes: 1232 echo:Hardcoded Default...
by b8smat
Sun Aug 14, 2016 11:08 pm
Forum: Tech Support
Topic: No temperature reading in Pronterface
Replies: 7
Views: 1654

No temperature reading in Pronterface

My M2 has suddenly decided not to report any temperatures back to Pronterface. Pronterface seems to connect just fine (last thing it says is SD card is OK). But nothing I do gives me back a temperature reading. Not the graph, the status bar nor the console window. Sending a manual M105 command has n...
by b8smat
Mon Apr 13, 2015 2:47 pm
Forum: M2 Dual Extruder
Topic: Z axis won't go up
Replies: 2
Views: 1489

Re: Z axis won't go up

I think you're right. My bad. Thanks

But now that I have it up and running again, at least as a single extruder machine, I'm going to hold off fiddling until my son finishes printing some critical robot pieces for the FTC world championships next week.
by b8smat
Sun Apr 12, 2015 12:33 am
Forum: M2 Dual Extruder
Topic: Z axis won't go up
Replies: 2
Views: 1489

Z axis won't go up

I just installed the dual head and now the z axis doesn't work. The bed only goes down, when it tries to go up it goes down instead.

It seems to be something to do with the second extruder motor. If I unplug the cable for the new second motor, it works fine again.
by b8smat
Tue Jun 17, 2014 1:13 am
Forum: Tech Support
Topic: Filament guide tube problem
Replies: 6
Views: 3038

Re: Filament guide tube problem

That's what I was thinking too. Does anyone have something to share?