Glad your machine is working well. The G92 Z0 does not get stored in flash, so if you are not using the IR sensor then you need to repeat it every time you power up or reset the machine. I am now using the IR sensor to do the Z-homing and bed compensation, and it is working well. To get this far, I replaced the mdf bed support with aluminium (otherwise the bed levelling was unstable), changed toby dc42 - Ormerod
The Duet board is far more capable than RAMPS. Don't forget that as well as the RAMPS board, you need to add four Pololu stepper driver boards and an Arduino Mega.by dc42 - Ormerod
Sounds like a driver installation issue. Take a look at this thread . I expect Windows Vista will behave like Windows 7 does. Also note that different drivers are used when the firmware is being flashed, so you may be able to flash the firmware even if you can't connect (but you'll have to erase the firmware to try this). Use Device Manager to see what Windows thinks is connected.by dc42 - Ormerod
Quoteadsoftware The LED is lit and also turns off when is switch is hit manually. Only thing is, the switch isn't hit when Y Homing is processed. The plate only runs in the opposite direction when Y Homing. You mean the plate runs to the right, as seen from the front of the machine? Sounds like your y-stepper motor is incorrectly wired. Check: 1. You have the 4-pin connector the right way rounby dc42 - Ormerod
Quotedmould I think most people will be buying larger spools from far less expensive sources, so the spool holder is going to become redundant PDQ (it won't support a large reel). One of my first printing jobs was a separate spool holder! Would you care to share your design? It might look neater than the cat food box and piece of dowel that I am using!by dc42 - Ormerod
Quotedmould Well, having been bitten by the 3D printing bug, I will probably design & build a completely different, beefier machine during the year as a hobby, using experience I'm gaining while using & modifying this one. Probably basing it on one of the many RepRap proven designs. The problem with mass-produced goods is that the designer is constrained by having to save pennies on eacby dc42 - Ormerod
It sounds to me that you don't have the y endstop switch wired correctly. There is an LED on the board near the y-motor and y-endstop connections. That should normally be lit, and should go out when the endstop switch is pressed by the carriage.by dc42 - Ormerod
Quotedmould I've not yet looked at the datasheet for that MCU, but as a thought, where is the download boot code located? If it is in an on-chip EEPROM, a new MCU will need "factory" programming via its JTAG port (or however it's done with that MCU - different processors tend to use different techniques). I haven't used that mcu before, however from the datasheet, it looks like the mcu has theby dc42 - Ormerod
Here are my standard slic3r files. The 429b one is filament, 2kb one is print, 930b is printer. I am using version 1.0 RC2. Extrusion factor is set at 0.95, but as you have two holes in the gear, 1.0 may work better for you. I had two small holes in exactly the same places when I reduced the extrusion factor to 0.90.by dc42 - Ormerod
Quotedroftarts Great! Pull request? Ian RepRapPro tech support I was going to wait until I have some feedback before submitting the pull request, in case the code needs some improvement. So far I think only Matt and I have tried it.by dc42 - Ormerod
I have made some improvements to the web server firmware, which in conjunction with Matt's latest web interface, provide the following features: - Z probe reading is displayed in the web interface. So you no longer need to use Pronterface or serial monitor to do the G31 calibration, you can do it via Ethernet - Response to the last g-code sent is displayed in the web interface - Number of filesby dc42 - Ormerod
No, they are not normally glued down with epoxy. You will need hot air kit to remove the mcu. Replacing it is best done with solder paste and hot air. But have you tried replacing L7 with a wire link, in case the mcu is OK?by dc42 - Ormerod
My thought is to intercept the 6 hotend wires and the 3 or 4 IR sensor wires on the board. The IR sensor wires are needed to get the 3.3V supply, which is needed as the reference when reading the thermistor, particularly when detecting an open circuit thermistor. Then use an attiny45 to read the thermistor and switch the fan using a tsm2314 mosfet. Also add failsafe circuitry so that the fan willby dc42 - Ormerod
QuoteGregL Maybe I need to run it at +5C over normal settings. Which firmware version are you using? Send M115 in Pronterface to find out, and upgrade to 0.57a if you are not already running it. Old versions of the firmware over-reported the extruder temperature. QuoteGregL Bed seems rock solid at 21.7, but the extruder is erratic. Mostly 15.6, but it will randomly jump to 18.6, 12.3, 3.6, 8.4by dc42 - Ormerod
Here is a gcode file from which I've just printed the small gear. It's set for an extrusion factor of 0.95 which works well for my Ormerod.by dc42 - Ormerod
Just a thought: if I produced a small pcb that sat on top of the hotend to control the fan, how much demand would there be for it?by dc42 - Ormerod
Quoteiamburny It cant be that hard to use the existing thermistor to trigger a switch/relay. more investigation to do it think. Matt Yes, it would be quite easy to use a comparator feeding a smallish mosfet to control the fan. However, since the Duet board already has a fan control mosfet, and I (and I suspect most others) don't expect to use this to control an external cooling fan, I think thby dc42 - Ormerod
QuoteKimBrown Hmmmmm ok.... Well searched for the advanced setup as Ian suggested, but it needs compiling in python I think. If you've followed the instructions in the advanced setup, then under Windows you can right click on pronterface.py in Explorer, click "Open with", and browse to python.exe or pythonw.exe in your C:\Python27 directory.by dc42 - Ormerod
One thing I have found which may save others time: you cannot upload reprap.remote.min.htm via the Pronterface facility. I suspect that Pronterface is uploading a line at a time, and the single long line in that file confuses it. However, you can upload reprap.remote.htm via Pronterface, after renaming it to reprap.htm.by dc42 - Ormerod
Quotebobtidey One longer term suggestion which would be nice would be to be able to update any of the SD card files, e.g changing things like config.g. That would then avoid the need to take the card in and out. I expect that would need firmware changes as well. There are specific gcodes to allow sys/config.g and www/reprap.htm to be uploaded (M559 and M560), which is why you can upload these fiby dc42 - Ormerod
QuoteKimBrown Sounds good DC.... How do we do that then???? See item Electrical 6a in .by dc42 - Ormerod
QuoteKimBrown Just a thought about these IR sensors.... Ok it sort of works at one particular range.... So why don't we just mount it so that it's on a slider. We then adjust it to it's best working range. Tighten it in place and surely it should be ok then. Kim It's better to change the component values to reduce the sensitivity to ambient light as I did, then you can calibrate it at a lower nozby dc42 - Ormerod
It's at . You need to download and install KiCad to read most of the files, except the schematic which is PDF. btw I think the inductance of L7 is about 1uH. But as I said before, a wire link should work OK.by dc42 - Ormerod
QuoteGregL Just trying my first print - Ormaxis Concerned that the extruder will sit chattering, when it should clearly be extruding along a long run. I have to help it turn. What to do? Greg It may just mean that the head is too low, Test whether it will extrude filament reliably with the head well above the bed. If so, try another print, but don't put the head so close to the bed. It needs toby dc42 - Ormerod
L7 is an inductor. Strangely, the parts list doesn't give its inductance, it lists it as "100MHz". It's connected between the analog and digital grounds. It isn't vital, it's purpose appears to be to reduce noise when reading the thermistors. You could try replacing it with a wire link. But it is quite likely that whatever voltage you put across it has damaged the mcu too.by dc42 - Ormerod
I just had a thought. M106 Sn where n = 0 to 255 normally sets the fan to the specified PWM value. How about M106 S-1 to set it to auto?by dc42 - Ormerod
Maybe if enough of us ask, RRP will allocate a M-code to enable this? Then I can implement it in the firmware.by dc42 - Ormerod
Yes, make both of those address changes.by dc42 - Ormerod
Quotegregstah Thanks guys for pointing me to Matt's interface, it is sooooo much better!! As for firmware I'm not sure what I have on, I've not updated for about 2 weeks now :-) G Send M115 via Pronterface and serial monitor and see what version it reports. 57a is latest and best.by dc42 - Ormerod
Have you tried extruding filament until it comes through smoothly and clean? But check the nozzle height as well. Put the nozzle at x=100 y=100 and slowly lower it until it grips a piece of standard 80gsm paper. Then send G92 Z0.by dc42 - Ormerod