Have you made sure that your heated bed is level? Your hot end should be really close to the heated bed when it is at its lowest -- a regular piece of paper should tug a little.by John de Michele - Reprappers
Does anyone know of a generally-available heat sink that will fit on the motor controllers on a Melzi board (the kind that comes with a RepRapPro Mendel Tricolour)? I've tried adjusting the potentiometers, but I can't seem to get more than 2-3 prints before I get layer shifting. I've tried blowing a fan on the board, but I'm not sure how well it's working, and it's cooling down the heated bed wby John de Michele - Reprappers
Ideally, you would have some sort of online source control, like GitHub, to store the source code.by John de Michele - Reprappers
Using the Prusa calculator may be helpful, too.by John de Michele - Reprappers
I think KingRahl meant wire disconnects. I ran into this problem the other day, where the wire that powers the fan that cools my hot end came loose, about 40% of the way through a nine-hour print run.by John de Michele - Printing
The Melzi board from RepRapPro runs at 115200.by John de Michele - General Mendel Topics
QuoteMrDoctorDIV That GPL License brings up some ideas. Are they hard to come by? Expensive? Or more importantly, would it be an effective tool against the industries copyrighting the RepRap Community's work, allowing open source designs to stay just that; open source? If by 'they' you mean the GPL, it doesn't cost anything to license. You just need to include the text of the license in your soby John de Michele - General
You could look at RepRapPro's Tricolour Mendel.by John de Michele - General
Did you double-check your wiring setup, and verify that the correct voltages are being used? If the extruder doesn't heat up, and the heated bed isn't heating up, it sounds like you've got something that's not connected, or connected backwards.by John de Michele - Reprappers
Quoterepraptech John de Michele: My power supply arrived sometime back...however when I plugged it in, it didnt have much effect. It did rise the temperature of the bed by couple of degrees but not much difference. However, I managed to change the thermistorbed setting to 200k it shoot up my temperature..bingo!!! //////////////////////////////////////////////////////// #define THERMISTORBED 2 ///by John de Michele - Reprappers
You may want to try slicing in a different program (or with a different instance of Slic3r), and then just have Pronterface run the GCode, and see if that changes anything.by John de Michele - Reprappers
You're much better off doing more research. Do some reading, think about what kinds of things that you want to print. Take a look at the multitude of different printer types (and variations). Spend some time reading documentation, as many sites have online docs for building their printer designs. Get an idea of the complexity (some projects are simpler than others). I got my RepRapPro Mendelby John de Michele - Reprappers
Try sending an email from here.by John de Michele - Reprappers
Have you tried contacting their customer service? RepRapPro has a 1-year warranty, and provides help. You can look here.by John de Michele - Reprappers
Repraptech, Yes, 110C should be good for ABS. I've been getting good sticking with ABS on kapton tape at that temperature. John.by John de Michele - Reprappers
Repraptech, Honestly, probably not. You can check the voltage going to your heated bed, and see if it's close to 12V. The problem that I ran into was that mine was topping out about 7V, no matter the adjustments that I made. With the new power supply, it's now close to 12V, and the heated bed warms up twice as fast as it did before, although the last few degrees seem to take a bit to get to.by John de Michele - Reprappers
Repraptech: If your heated bed won't get higher, you can try a couple of things: 1 - You can try adjusting the voltage on your power supply to 13 or 14V. This may be enough to do the trick. 2 - Get a 12V/30A power supply. I just had to do this, as the heated bed on my Tricolour Mendel wouldn't get past 68C. This is the supply that I picked up. Now my heated bed goes all the way up to 110C.by John de Michele - Reprappers
That doesn't look like an infill problem, it looks like your first layer isn't being laid down correctly. When your Z-Axis is at its lowest point, you should just barely be able to get a sheet of paper under the nozzle. Have you calibrated your Z-Axis height? If it's even a little too high, the plastic will cool too soon, and your layers won't get laid down correctly.by John de Michele - General Mendel Topics
Yes. I've got a temperature probe on my multimeter, but an IR thermometer is probably more accurate.by John de Michele - Printing
Are you sure that the temperature of your hot end is actually reaching 215/225? It looks like the ABS is cooling too soon, which would explain why you're getting stringy prints.by John de Michele - Printing
Are you sure the bed is even hitting the switch? I've had a similar problem on my Mendel Tricolour where the mount for the Y-Axis end stop gets loose, and gets pushed below where the bed assembly can hit it. Have you done a manual check of the end stop, and verified that it's wired correctly?by John de Michele - General Mendel Topics
I think he's being sarcastic. Very nice prints.by John de Michele - Look what I made!
This might be a good starting point:by John de Michele - Reprappers
I will keep an eye on it, and continue to measure with the temperature probe on my multimeter.by John de Michele - Reprappers
It's the Melzi controller that came with the kit. The wires are the 20A wires that come with the kit.by John de Michele - Reprappers
It turned out that the potentiometer was the cause. Turning down the Y-Axis (and the X-Axis a tad to fix jittering) stopped the overheating. John.by John de Michele - Reprappers
Hey all, While printing today, I ran into an issue with with the power connector between the power supply and RepRap heating up to burning temperatures (hot enough to brand my finger. Ouch!). I've been trying to diagnose some Y-Axis jittering, and turned up the potentiometer on the Y-Axis a bit. Could that have been the cause of the overheating? I've pulled the plug before, and never had itby John de Michele - Reprappers