Thanks for the teacup info. Couple of problems with it though. It does compile but.. using HOST, Temp reporting is incorrect even with correct thermistor table (I may have damaged my hot end now). Heated bed option doesn't work, reading no volts on the pins and again reporting very low temps. Software endstops cannot be disabled (causes compile errors), so hardware endstops don't seem to workby hexitex - RAMPS Electronics
thats 7by hexitex - RAMPS Electronics
Thanks Dale, I spotted that when I started to look for G codes to wait for the heater to come upto temp G109 S200.0 for instance, I then spotted the in the generated code the 79c _oddness to say the least- what would this extrude? Anyway getting into skinheadForge - the madness of the UI is bonkers but it does some good things and repsnapper works just fine if you use gcode generated in skinheadby hexitex - RAMPS Electronics
Hi I have tried using repsnapper which is very poor IMHO, it's nice to move things during testing but heater control is a manual thing, you bring the heater upto temp and then start a print, repsnapper turns off the heater even though it is shown as being on, so you have to toggle off on again to maintain the heater, it's just not very well thought out, saving setting doesn't work either!. So,by hexitex - RAMPS Electronics
I used standard kettle wire from what normally plugs into my wall (240v) and it's been fine for twelve hours of running, I would imagine any standard electrical wire for a big domestic appliance will do the job, I also left all the resistor wire on the resistors and connected using a crimped pin and header with two layers or heat shrink. Sounds like your hot end is getting two hot though, Mine iby hexitex - RAMPS Electronics
As far as I can tell with mechanical end stops the only ones that need to be very good, i.e small are on the z-axis, I have fitted 6 to mine 4 big bulky ones on the x and y and two smaller ones from ultimachine on the z-axis. They are not working yet as I still need to understand what setting I have to make in firmware, so I am running on software which isn't good as that has no memory for obviouby hexitex - RAMPS Electronics
Interesting, thanks. So does the shared GND flow distribute the current back to the respective power supplies in the same voltages?by hexitex - RAMPS Electronics
OK, just to confirm your suggestion. Break a MOSFET connection so it is effectively independent, hookup the 30v power supply to these broken connections so it runs through the MOSFET and bang I'll have 100Watts of heated bed or a dead ramps. What about on off control? Robby hexitex - RAMPS Electronics
Thanks Viktor, so is there nothing that can be done to jackup the volts, maybe through capacitors ? Sorry, please forgive my ineptitude I have just started to learn electronics (page 70. I also have a bunch of 6ohm resistors (about 20) would these be better and would they perform well enough in a series? I am trying to understand what Ramps will allow me to do without a relay - has anybody had suby hexitex - RAMPS Electronics
Hi, I have two of these and was wondering if the Ramps setup can power them without issue? I plan on adding heatsinks to the MOSFETS with active cooling to the whole system. Checking the datasheet doesn't give an awful lot of information about Amps but I am guessing about 1amp per unit (wild guess BTW) - they do support voltage from 10 to 30. As you can see they are quite convenient for attachinby hexitex - RAMPS Electronics
Thanks Triffidby hexitex - RAMPS Electronics
Hello, I am very new to this lark and have zero understanding of electronics but jumped in the deep end and decided (well advised) to go with a RAMPS based solution. Problem I have is knowing what is compatible when purchasing parts. looking at this site list of nema 17 step motors I am not sure what would be best to drive a mendel on the axis's and extruder? Any help would be welcome - other suby hexitex - RAMPS Electronics