Search found 4 matches

by mtcorby
Sun Jul 08, 2012 1:48 pm
Forum: EMC2/LinuxCNC
Topic: EMC2 Configuration for H1?
Replies: 15
Views: 34028

Re: EMC2 Configuration for H1?

little confused on the A axis. I've converted the Z,Y & Z axes to inches, but do I do the same for the A axis? I know that if it was truly degrees, then it would not change, but you mentioned something about it not truly being degrees, but in mm of extrusion. So do I convert the 5 deg/rev like: ...
by mtcorby
Sun Jul 08, 2012 1:39 pm
Forum: Troubleshooting
Topic: Velleman Thermostat Not Working
Replies: 5
Views: 4441

Re: Velleman Thermostat Not Working

narrowed the problem down to the relay on the thermostat not working properly. didn't want to wait to order another one so I grabbed one from radioshack, even though it didn't fit on the PCB. I simply screwed on an extension board to the thermostat, and ran wires from the extension to the proper loc...
by mtcorby
Wed Jul 04, 2012 11:04 am
Forum: Troubleshooting
Topic: Velleman Thermostat Not Working
Replies: 5
Views: 4441

Re: Velleman Thermostat Not Working

Possibly another clue. Just checked the resistance of the resistors. Together they are 3.6 ohm, which seems right, because that gives I = V/R = 12/3.6 = 3.3A, which seems like a good amount of current to do some heating. So I put a jumper between the two thermistor leads, which turned off the relay....
by mtcorby
Tue Jul 03, 2012 11:41 pm
Forum: Troubleshooting
Topic: Velleman Thermostat Not Working
Replies: 5
Views: 4441

Velleman Thermostat Not Working

Hi, I have assembled the SeeMeCNC H-1 with the stock electronics, changing the R5 resistor in the thermostat as specified. I have been able to use Linux CNC to get the stepper motors working, but the thermostat does will not give current to the heating resistors. I checked the power input, it is get...

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