Aha! I saw that list, but I skipped right past M140. Sorry for being such a dolt, and thanks for helping.by dazed.dnc - Firmware - experimental, borrowed, and future
Maybe I didn't phrase the question quite right. I saw in the Gcode list that M104 just sets the temperature and lets Gcode parsing continue while the temperature is rampped up whereas M109 is supposed to pause until it reaches the temperature. My question is more along the lines of how these codes are supposed to set the build plate temperature. I know what Gcode lines work with the makerbot, buby dazed.dnc - Firmware - experimental, borrowed, and future
Maybe this isn't the best forum for this question, but with so many to chose from I wasn't sure which one I should use. Sorry if I have guessed wrong. I am using Tonokip's firmware for an arduino mega. It seems to be missing some Gcodes. For example, I added M126 and M127 for controlling a servo driven shut-off valve. I have now built a heated build plate and need to control it. I can hard-codeby dazed.dnc - Firmware - experimental, borrowed, and future
Wade Wrote: ------------------------------------------------------- > Interesting - I haven't used ABS in years, so > can't really say how well it works. Any chance > you could hook up a scale of some sort and do some > pull tests? > > Wade I have a couple of hanging scales on order. They will go to 40Kg. They are the cheap digital kind, but I know some people who use certifiby dazed.dnc - Reprappers
I kept having trouble with the drive bolt on my extruder stripping out the fillament and loading all the teeth with plastic. From what I have heard, it sounds like a couple of other people have had the same problem and eventually went back to using timer pulleys. The standard practice for making drive bolts appears to be cutting teeth with M3 taps. The fine teeth allow smooth operation, but I doby dazed.dnc - Reprappers
I don't see what the test conditions were and my strength of materials knowledge is quite rusty, but it appears that PTFE deforms more than ABS. I have been comparing the tables at and . ABS reportedly has a compressive strength of 60 - 86Mpa but PTFE has a tensile strength of just 25 - 36Mpa. Likewise they show that PTFE has a drastically higher percentage of elongation. They show ABS at 5 - 2by dazed.dnc - Reprappers
I hadn't considered the effect of compressing the filament itself. I'll have to take a look at the compressive properties of abs/pla and see how that compares to the tensile properties of PTFE. Depending on which deforms more, especially if there is a significant difference, changing the cable could be pointless. I was thinking the problem was more to do with the filament trying to push the two eby dazed.dnc - Reprappers
From what I hear, the PTFE tubing in a bowden extruder is bit springy and it creates more of an ooze control problem. I was wondering if anyone has tried one with a braided steel cover like these: These cables are designed for NOS plumbing, but they are Teflon lined. If the lining is very thin, it will probably rub through relatively quick. I don't see a spec for the Teflon thickness nor do I rby dazed.dnc - Reprappers