Building a Prusa Mendel.
Using the hot end from Adrians universal mini extruder:
Universal mini extruder
the thermistor is the more robust one, referred to at the bottom
Thermistor
I have updated the firmware table with the data provided for that resistor.
When I use 'check temp;' in pronterface I get ok T:0 B:0
In pronterface I set heater to 185 (for PLA)
I waited 5 minutes for the heater to warm up
On the resistor theres 131k ohms resistance at the ramps board end.
Have checked for shorts on the thermistor & the power resistor against the brass heater block.
I test by holding (in pliers) a piece of heatshrink against the hot end brass block , but no heat
Any ideas why the heater is not heating?
Thanks in advance.
Mike
Update : Solved: there's no resistance in the power resistor at the board end. Probably a break in the bootlace ferrules.
Edited 1 time(s). Last edit at 01/01/2012 01:36PM by 3D2B.
Prusa Mendel /Parcan Mk 2/1280 RAMPS 1.4/PC XP OS/Pronterface/Slic3r
In the UK, down south & over to the left you'll find the West of England RUG.
For details, visit
tiny.cc/woereprap or tiny.cc/woerug
