Offering $20 to help troubleshoot heatbed issue RAMPS 1.4/Mega 2560 I'm offering $20 via paypal to anyone that can help me troubleshoot my electronic issue. I'm 2 months into this frustrating ordeal and just need some expert help. I'm building a Mendelmax 1.5 using RAMPS 1.4/Arduino/Mega 2560 I can home the X, Y, Z motors 12v power supply I have Pronterface and Repetier and can connect fine. I'm getting the error on MINTEMP. M999 to restart printer Main question is why wont my heatbed and hotend turn on? When I start the heat bed, it starts and then immediately drops to 0 Same with the hot end, it starts and then immediately drops to 0 My heatbed is a MK2B with a 1k resistor I'm getting 12.69 volts to D8 and D10 Continuity test passed on the heatbed and hotend 12g wires I get a heatbed reading for the thermistor https://reprap.org/forum/read.php?151,599154,599154#msg-599154 Wed, 22 Apr 2026 02:21:51 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?151,599154,603359#msg-603359 Re: Offering $20 to help troubleshoot heatbed issue RAMPS 1.4/Mega 2560 https://reprap.org/forum/read.php?151,599154,603359#msg-603359
its a dead resistor from a cheap $20 chinese E3D V6 clone off ebay.

went with the real $80 version from makerstoolworks and then ran into a dead heat cartridge.

replaced the it with the E3D V6 heat cartridge and now i can print]]> defcon General Mendel Topics Fri, 01 Jan 2016 21:44:20 -0500 https://reprap.org/forum/read.php?151,599154,599154#msg-599154 Offering $20 to help troubleshoot heatbed issue RAMPS 1.4/Mega 2560 https://reprap.org/forum/read.php?151,599154,599154#msg-599154
I'm 2 months into this frustrating ordeal and just need some expert help.

I'm building a Mendelmax 1.5 using RAMPS 1.4/Arduino/Mega 2560

I can home the X, Y, Z motors

12v power supply

I have Pronterface and Repetier and can connect fine. I'm getting the error on MINTEMP. M999 to restart printer

Main question is why wont my heatbed and hotend turn on?

When I start the heat bed, it starts and then immediately drops to 0

Same with the hot end, it starts and then immediately drops to 0

My heatbed is a MK2B with a 1k resistor

I'm getting 12.69 volts to D8 and D10

Continuity test passed on the heatbed and hotend 12g wires

I get a heatbed reading for the thermistor]]> defcon General Mendel Topics Mon, 21 Dec 2015 00:07:10 -0500