Yes, I'm using the original "Melzi" board. If you can be a bit specific about your autoleveling issues I'd be glad to help.by TT3002 - Prusa i3 and variants
For the record, I ended up using this: I recommend full infill to avoid having the inductive probe snap the plastic under unusual stress (ask me how I know!). Printed easily with simple supports. I use an aluminum bed, with white masking tape and a layer of Dollar Store stick glue as my usual surface, with excellent results. I do recommend always bringing the extruder and bed to printing tempeby TT3002 - Prusa i3 and variants
I'll probably just buy that and be done with it. Do you have a good reference page for power, hookup, and programming instructions (e.g. Arduino settings, which bootloader to flash, how to flash the bootloader and firmware via this device, etc.? It comes with the correct cable to hookup to the connector on the Tronxy clone board? Thanks!by TT3002 - Prusa i3 and variants
Hi. Avrdude claims the chip signature matches, so apparently real communication is taking place at some level (but as I noted, it also claims the fuses are all 0 -- is this right???). I'm pretty sure the current Repetier builds won't compile with the older Arduino. I've been doing all this via a direct USB connection. I don't have a programmer at this point, and the expense of a non-Chinese one fby TT3002 - Prusa i3 and variants
I have exactly the same problem with a Tronxy p802m. I've spent a couple of days now trying to upgrade the firmware with a new build. The unit came with .91, and I built a 92.9. But so far, using two linux systems and a Win10 system, I've been unable to get the firmware flashed. I've mostly used avrdude directly, though I've also gone through the Arduino IDE. The bottom line is that I can get avby TT3002 - Prusa i3 and variants
For the record, the vendor of this filament has declared the entire batch of black to be bad (it wasn't only me having problems with it) and has shipped me a (different color) replacement.by TT3002 - Printing
Middle grade I guess -- it was recommended by someone who claims "no problems" with it. Of course, no telling what's in any given batch.by TT3002 - Printing
OK, this is getting annoying. Every other PLA filament color I have -- all apparently the same batch from the same manufacturer, print between reasonably to great. But my first spool of black PLA is possessed. Every time I try to print, it's OK for 3 or 4 layers, than I start to get stepper skips. Just a few at first, then more. At that point it's started to clog, since if I raise the extruder itby TT3002 - Printing
For the record, I just did the following: 1) Matched height of both sides of the x-axis gantry on the z-axis motors the best I could with my un-great calipers. 2) Put a sliver of tape on the front of both z-axis motor couplings 3) Ran the gantry up almost to the top, then back down to the bottom To the eye at least, the motors stayed in sync visually as far as the tape markers were concerned.by TT3002 - Printing
I'm looking into alignment issues that might cause binding now. I'm pretty sure both Z motors are being driven from the same driver in parallel, so I probably can't increase the current on one without increasing it for the other. There aren't obvious adjustment pots on the board, so the only way to change that might be in the firmware itself -- and since I don't have the original Configuration.hby TT3002 - Printing
Here are links to four associated photos (this forum is fighting my attempts to upload them). You can see how the rod rather abruptly starts to narrow down towards one end -- that's the end with the oval, and that end was positioned near 0,0 on the bed. You can see the shape of the oval in another photo, with a bit of the support structure still underneath. You can also see that the other end (pby TT3002 - Printing
I'll have to get a couple of photos. For a cylinder test print, you can see it start to taper down past the center of the bed, until when you get to the corner the circular cross-section has been squished down to a noticeable oval. I assume that binding could cause this too, perhaps if the x-axis has drifted out of a level alignment between the two z-axis lead screws? Thanks.by TT3002 - Printing
I thought I had things well calibrated, but I just discovered that vertical circles are printing as ovals at one corner of the bed. That is, if I print a tube from the lower left corner to the upper right corner, the upper right end has a good circle, but the lower left is squashed down into an oval. Given the variance between the corners, I'm not sure where to look for a calibration or other proby TT3002 - Printing
I found it. The controls only appear when Repetier-Host is in direct connection (e.g. serial) mode. They are not present when connected to Repetier-Server.by TT3002 - General
Hi. I'm running Repetier-Host 1.6.2 under Linux -- supposedly the most recent version. No matter what I do, I cannot see the debug controls that are supposed to be under the manual controls (please see attached photo). I want to use "Dry Run" mode -- but need those controls to do it, or alternately need to know the script/codes to send to manually trigger this mode. Odd though that the buttons arby TT3002 - General
I found it. Needed: chmod 666 /dev/ttyUSB0by TT3002 - Repetier
Hi. After some successful tests of the Server from an old Win7 system, I'm trying to move to a Linux system that is much faster. Host and Server both installed fine. Host accesses the printer fine directly over the /dev/ttyUSB0 connection. However, even though Server is running (obviously, I test this when Host isn't connected!) Server does not appear to communicate with the printer at all (e.g.,by TT3002 - Repetier
Yeah, my guess too from studying more photos. Thanks.by TT3002 - General
Ah, probably the heat cartridge setscrew ...by TT3002 - General
If the nozzle will unscrew without loosening that hex screw, what is the purpose of that hex screw? Thanks.by TT3002 - General
Fascinating. So glad I checked on this. So just punch through the tape to reach the hex screw if I need to remove the nozzle? Thanks!by TT3002 - General
This is a pretty embarrassing question. I just built my first printer -- a generic Chinese Cartesian kit -- and have been running through basic calibration and checks before initial printing. In the process, I ran the hotend and bed temps up a bit (not to operating temps) just to test the heaters and thermistors. All seems OK. But just as I was getting ready to set up for a printing test run, I nby TT3002 - General