Heatbed Directly to PSU
Posted by wacoe96
|
Heatbed Directly to PSU June 11, 2014 01:47PM |
Registered: 10 years ago Posts: 12 |
I have everything ready except my heatbed. When I tried last night to heat it through the onboard Sanguinololu (1.3a) heatbed connectors I gave myself a pretty nasty burn. I'm using ABS so I need the heatbed. I've seen online that you can hook the heatbed PCB directly to the PSU and it will regulate itself, can anyone confirm this or offer another method?
Using:
Prusa i2 w/Sprinter on Sanguinololu 1.3a.
30w PSU
Thanks
Using:
Prusa i2 w/Sprinter on Sanguinololu 1.3a.
30w PSU
Thanks
|
Re: Heatbed Directly to PSU June 11, 2014 02:38PM |
Registered: 10 years ago Posts: 439 |
The heatbed won't regulate itself. It has to be connected correctly to the Sanguinolulu. If you touch the heatbed when it is operating correctly for ABS then you will can get a burn as it is hot!
You can cook your eggs for breakfast on it if a bit slowly.
You say that you are using a 30 watt power supply ??? That is totally inadequate and will burn out in a hurry.
You can cook your eggs for breakfast on it if a bit slowly.
You say that you are using a 30 watt power supply ??? That is totally inadequate and will burn out in a hurry.
|
Re: Heatbed Directly to PSU June 11, 2014 02:41PM |
Registered: 10 years ago Posts: 12 |
|
Re: Heatbed Directly to PSU June 11, 2014 03:44PM |
Registered: 10 years ago Posts: 439 |
|
Re: Heatbed Directly to PSU June 11, 2014 05:00PM |
Registered: 10 years ago Posts: 12 |
|
Re: Heatbed Directly to PSU June 12, 2014 05:19AM |
Registered: 10 years ago Posts: 439 |
|
Re: Heatbed Directly to PSU June 12, 2014 03:18PM |
Registered: 10 years ago Posts: 12 |
So this morning I tried wiring the heatbed to the Sanguinolulu using both crimps and directly attaching the wires. Both times the Vreg began to overheat after about 10 seconds and I had to kill the power. I'm using 14 gauge wire which should be sufficient to handle 12A. Any ideas?
Is there a way to reduce the current to the bed in the firmware, and just increased the time that it takes to warm?
Edited 2 time(s). Last edit at 06/12/2014 03:21PM by wacoe96.
Is there a way to reduce the current to the bed in the firmware, and just increased the time that it takes to warm?
Edited 2 time(s). Last edit at 06/12/2014 03:21PM by wacoe96.
|
Re: Heatbed Directly to PSU June 12, 2014 04:35PM |
Registered: 10 years ago Posts: 12 |
Sorry, only registered users may post in this forum.