i was looking at the thermistor datasheet again and noticed that they drop enough clues to work out what the beta/rz values are. according to the datasheet, it is 10k Ohms at 25 degC, and 1990 Ohms at 70 dby pix - Mechanics
today i noticed that after running either the extuder excerciser or the heat profiler for a while (eg 30mins) the console starts reporting IOException due to timeout, and the temperature stops changing. the boards still work otherwise though, and the heater seems to be accepting commands because the blink rate changes occasionally. is anyone else having this problem? it's a little concerning becby pix - Mechanics
hi, we ordered our thermistor from , so (i think) it's the Vishay 01T1002FP. is this the "standard thermistor" mentioned on pages like ? we did some measurements yesterday, and the beta and rz values we calculated are quite different from the ones given on that page (3480, 29K), but seem to produce considerably closer to reality. so basically, does anyone have the official beta/rz values for tby pix - Mechanics
hi, this probably isn't relevant for about 99.9% of people, but while we have been building our Darwin, the most convenient computer we had for running the software was an old Apple G3 laptop (PowerPC) running Ubuntu. if anyone else adventures down the same thawny path, we have put some notes on our wiki: so far, it seems to work, but it takes some time. fortunately we had enough people involby pix - RepRap Host
Hi, We couldn't find this note about jumpering P3/SYNC on the wiki, is it still there? We also ran into the problem that the communications tests in seem to only intermittently work until you have installed the resistors (R10, R11) mentioned in . Before installing the resistors, we discovered that the serial communication only works reliably when someone touches the sync pins, providing someby pix - RepRap Host