Bed Temp not reading properly

General Hardware
1

Over the last week I have been having all of my ABS prints warping and cracking and peeling off the platform. At first I thought my bed level was off, but I was wrong. It is perfect. I finally just put my hand on the platform during printing and realized it wasn’t that hot. I had it set at 105, which should burn my hand if left for more than a couple seconds. I was able to leave my hand on the platform indefinitely. It was uncomfortably hot but did not burn me. It seems to be about 30-40 degrees off. It is heating but not properly. The LCD screen shows 105 but it’s not close. Any ideas on what the issue is?

2

Does the bed seem to be that cool over the entire surface or just in spots? Please send in an email to Support@LulzBot.com with the following information:

  • Order number

  • 3D printer serial number

  • Contact information

  • Shipping information

Thanks!

3

I finally got a chance to check that bed surface. It seems to be consistently cool over the entire platform. I can send you the info you requested. Where do you want me to send it. In regards to the issue; any ideas on what the problem is. I checked the connections on the heater and mother board end and both seem fine. I guess it could be the heater itself, but I’m really hopeful that is not the situation. I have already replaced that a few times. (not because it failed, but because the glass broke)

4

Send in an email to Support@LulzBot.com. If you’ve transferred the heater to several different beds that flexing may have damaged it. It’s hard to say without knowing more.

5

I finally grabbed one of my old cracked beds with the heater still attached and just slid that under my new 3/16ths tempered glass bed. I had to add some spacers to make it work, but after a couple bucks at the hardware store all was good. I heated up the bed (had to add 10 degrees to the platform to account for the extra thickness) and the bed heated up perfectly. So apparently the heater I had became damaged some how and quit working. not really sure if it was something I did or not, but at least it’s working again.