I have a Sanguish board, two actually, and on one the opto-endstops work fine. They didn't start off that way but for whatever reason they started working. Anyway, this other board none of the endstops work, it has 2 optos and one mechanical and none of them are working. I had z working for a bit then it stopped. I've double checked all the soldering and connections. Both boards were burned withby Gyvven - Controllers
I've been trying to find this info listed somewhere here but I haven't found it. There are several bundles ABS pellets listed on places like Eba* and even some on Amaz** at ok prices, but many of their descriptions say good for injection molding, blow molding AND extrusion molding. I know there is a difference between injection molding and extrusion molding materials, but in the long run does iby Gyvven - Plastic Extruder Working Group
My $.02. A friend of mine bought his printer as a kit. The extruder gear was a printed ABS part and his motor was, IMO, undersized, I don't recal the exact rating. It would get so hot after about 20 minutes of printing that the gear would melt and start to slip on the shaft. I don't recall if he figured it out or if he just put a fan and heat sink on it. I use oversized 2.5A steppers but I haby Gyvven - Stepper Motors, Servo Motors, DC Motors
Since before I finished my RepRap I've been interested in using it to print the traces on a board and etch my own PCBs. The Wiki doesn't have a lot of information and the forum has none that I can find. Has anyone had good success with this and what process do you use? Is it fairly simple to convert a Gerber file, or any other PCB software file, into an STL that I can use to print 1 or 2 layersby Gyvven - Controllers
I finally got around to changing the pulley. I thought I had the grub screw tightened down pretty well on the old one but it practically fell off the stepper shaft. I ground a small flat on the shaft and installed the new pulley and tested it out last night. It worked perfectly and I'm back in business. BTW: I found out you CAN overtighten the belts and put too much lateral force on your stepperby Gyvven - General Mendel Topics
I also have the bridging problem, sometimes it works fine and sometimes it's nowhere near right. Sometimes rotating the part will change the tool path and fix it, sometimes not. I panicked one day, while printing x-axis ends it started spewing into free air, so I stuck my finger under it to support it until the other end attached. It was a little warm but it worked and the bridge looked fine aftby Gyvven - Slic3r
I've had similar issues with horizontal holes coming out flattened, top or bottom or both, and I've gotten the "intersecting facets" error. I reduced my layer height from .25 to .15 and the holes sliced and printed properly. If I get the error I can sometimes re-slice it and it'll go away, otherwise I have to run it through a CAD program and resave the STL. I'm using Repetier Host and Slic3r. Soby Gyvven - Slic3r
The new pulley came out fine, I'll tear it down tonight and grind the flat spot on the shaft. @waitaki - I'm guessing your comment stemmed from my cracked nut slot comment and how I was wanking on it. I can provide pics if you're interested.by Gyvven - General Mendel Topics
You're probably right. I don't have flat spots on my stepper shafts and I noticed my x-axis pulley has a small crack at the nut slot, probably from me wanking on it. I'm going to tighten the set screw down as much as I can, slow the print speed and travels down to about 15 and print a new one then I'll grind a flat on the shaft while I have it apart.by Gyvven - General Mendel Topics
The steppers are 2.5A, so maybe you're right about the current. I did fiddle with the driver's current limit pot a bit recently but maybe I didn't get it back to the same setting it was working at before. I'll give it a whack and see if it fixes it. Thanks.by Gyvven - General Mendel Topics
Kingoddball, This looks very similar to my first attempt, I was so excited to finally get my printer functioning I forgot to double check all the settings were correct with my slicer. Turns out it was set at the default .50 nozzle and I have a .35. I also found my extruder steps were too low by about 40%, everything was very flexible and my perimeters weren't touching. Once I settled down and weby Gyvven - General Mendel Topics
I've been using my printer fairly regularly since I finished it and everything has been fine until recently. My x-axis has started drifting to the left, not a lot and not consistently. I did find my grub screw had come loose so I tightened it but the problem persists. I printed the 10x10x50mm tower and it came out straight, but when I try to print the cover for a box it starts to drift. I've re-by Gyvven - General Mendel Topics
I finished my build. Yay! I got the firmware and and other software loaded, and my PC is talking to the board and the steppers. Since I'm just testing and calibrating I used Manual mode to jog the steppers and I noticed everything is reversed, except Y (I'm calling the front the side without the motor), extruder, Z-axis and X-axis are all backwards. I followed the wiring diagrams and made sure tby Gyvven - RAMPS Electronics
Thanks bryanandaimee, I'll be making a gen7 board and, from everything I've read so far, I won't need an external driver board. I thought it might be an option for somebody, but it sounds like it would be a lot of extra work to get it to work properly.by Gyvven - Controllers
Starting to make my shopping list and I was a couple steppers short so I hopped on Ebay and found this setup. Basically it's a 4-axis driver board, 4 78oz-in steppers and a 200W power supply. I thought "heck, that might be useful." I plan on etching my own Gen7 board, but I thought getting a commercially available driver board might be another solution to making my own, especially if it comes witby Gyvven - Controllers
I'd be interested in a set. I was considering doing the same thing. If I were you I'd use mdf to make a set of perfect templates, then use double sided tape to stick an acrylic (or more mdf) piece on, then take it to a router table with a template bit, and finally to the drill press. You could whip out a couple sets an hour. Acrylic is more expensive and looks nice, but I've seen people use a nby Gyvven - Reprappers