1

Topic: Lost bed heat during print

SD4

I've been using this unit as a workhorse and it is great...BUT

Lately it started to just stop heating on the bed through a print.  I replaced the bed from another SD4 machine to see if the pad just stopped working.

The replacement unit heated, but then flaked out part way through print.

While in the print, I manually turned off the bead heat and turned back on after a few seconds...nothing

So I turned off bed heat for ~2 minutes....then it heated up.

Appears to hold heat, but WHAT THE HECK COULD THIS BE?

Post's attachments

solidoodle time sheet on bed temp.JPG
solidoodle time sheet on bed temp.JPG 146.79 kb, file has never been downloaded. 

solidoodle time sheet on bed tempa.JPG
solidoodle time sheet on bed tempa.JPG 168.47 kb, file has never been downloaded. 

You don't have the permssions to download the attachments of this post.
SD3 added E3DV6 and the Titan
still a rookie newbie, but learning.
Dreaming on building a large format from scratch

2

Re: Lost bed heat during print

Could be a bad power supply or even a bad harness to the bed.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

3

Re: Lost bed heat during print

Sounds like a soft break in the heater wire to me .

Soliddoodle 4 stock w glass bed------Folger Tech Prusa 2020 upgraded to and titan /aero extruder mirror bed
FT5 with titan/ E3D Aero------MP mini select w glass bed
MP Utimate maker pro-W bondtech extruder
Marlin/Repetier Host/ Slic3r and Cura

4

Re: Lost bed heat during print

I don't like these answers....but what does that have do with anything.

Thanks.....I'll try to put a volt meter at the bed where the wires attach and watch

SD3 added E3DV6 and the Titan
still a rookie newbie, but learning.
Dreaming on building a large format from scratch

5

Re: Lost bed heat during print

okay, so if I jiggle the wires from the bed......the damn thing heats again!!

Falcon and Carl -  I think you guys have solved the why...I'm going to work on the how to fix.  THANK YOU!!  BOTH

SD3 added E3DV6 and the Titan
still a rookie newbie, but learning.
Dreaming on building a large format from scratch

6 (edited by Tin Falcon 2018-03-24 20:20:34)

Re: Lost bed heat during print

Should be a case of getting some better wire and hooking it up splicing it in.
tin

Soliddoodle 4 stock w glass bed------Folger Tech Prusa 2020 upgraded to and titan /aero extruder mirror bed
FT5 with titan/ E3D Aero------MP mini select w glass bed
MP Utimate maker pro-W bondtech extruder
Marlin/Repetier Host/ Slic3r and Cura

7

Re: Lost bed heat during print

or upgrade the heater...
These things are PHENOMINAL! Both of my SD4s are outfitted with one. LOVE them!
https://www.printitindustries.com/colle … -8-heatbed

SD4 #1 & #2 - Lawsy carriages, E3D v6, Rumba controller board, mirror bed plate, X motor fan, upgraded PSU & Mica bed heater
SD4 #3 - in the works ~ Folgertech FT-5, rev 1
Printit Industries Beta Tester - Horizon H1