I know I can follow a thread (i.e. receive notifications) but is there a way to follow a forum? For example, I'd want to know if anyone posts anything to the North Carolina forum. For the time being, I've plugged the url into Google Reader but I was wondering if there's an alternate way.by degroof - General
I'm in Garner. So far, I've got the bulk of the electronics ironed out and I've collected most of the off-the-shelf hardware. Taking a bit of a break while the custom hardware pieces become more widely available.by degroof - North Carolina RepRap User Group
OK, this is based on looking at the board for maybe 2 minutes. I could be completely wrong and this could completely fry the board but, based on what I can see, you can mod the board for a 5V stepper like this: 1. cut the trace between the +12V line and the L298N 2. solder an alternate +5V supply where marked 3. use the - supply as a common ground That should send 5V to the stepper motor withoutby degroof - Controllers
I found I had to install R10 and R11 before test 3 would pass.by degroof - RepRap Host
Wacky idea: Put down a layer of cuprous oxide, then treat it with ascorbic acid. Not entirely sure but I think this might result in the cuprous oxide being reduced to copper.by degroof - General
Worst case, you yank out the PCB and replace it with a couple RepRap stepper motor boards.by degroof - RepLab Working Group
That's got it. Thanks. looks like the cygwin-firmware.zip referenced in the instructions uses to old hostname.by degroof - RepRap Host
I've got cygwin installed on my PC. I trued following the instructions here: It looks like I get a proper make but, when I try to get an update of the firmware source, I get the following error. I'm a bit clueless about subversion. I'm assuming it's just a configuration problem but I have no idea where to look. Any thoughts? $ svn update devices svn: PROPFIND request failed on '/svnroot/reprapby degroof - RepRap Host
For me, the soldering was the easy part. Been doing stuff like that for 30 years. All this mechanical stuff, though. That's going to slow me down a bit. For now, though, I can try a few things with the extruder board. Interested in seeing how the whole heater/thermistor feedback loop works. That should keep me busy for a while.by degroof - Reprappers
Hmm, well, I suppose I could find something else to occupy my time for a couple weeks. :-)by degroof - Reprappers
I ordered mine from Newark: $180 including shipping. It looks like they direct-ship from Farnell anyway. I placed the order on 10/8 and they showed up 10/19.by degroof - Reprappers
So, I'm now to the point where I need some plastic parts. I could: a) Wait for molded / RepRapped parts to become available b) Try to make some myself c) Order some online Option b is probably not viable. As for c, I found a place called Quickparts . Might try to get a quote out of them. Anyone had any experience with online prototyping services? Any recommendations?by degroof - Reprappers
I'm assuming a pan-head 6mm M3 screw will fit a heatsink but I don't have any handy. Can anyone confirm?by degroof - Reprappers
Ah, OK. So the pulleys in the "shopping list" are driven by the motors and the ones not listed are free-spinning. Makes sense.by degroof - Reprappers
Haven't seen this posted anywhere yet: "Now, you've got a bit of a difficulty if you've got a machine that can reproduce in that it's very difficult not to give it away."by degroof - General
I was looking over the various bits and pieces I have here and noticed something odd. There are 4 Z pulleys, 2 Y pulleys and 1 X pulley. I get the 4 Z but shouldn't there be twice as many X and Y? Or do some of those have to be molded?by degroof - Reprappers
Hmm, can't tell if anyone's done this before. The closest I could find was a selective curing process where the liquid medium is also the build material.by degroof - General
Mouser: Nuts: 5721-440-SS Screws: 5721-440-1/4SS Both are 100 per pack, which is admittedly a bit excessive, considering you need, what, seven? Small Parts Inc has (AFAIK) the metric equivalent: Screws: MPX-M03/06P-25 Nuts: HNX-M03-25 The current BOM already includes some M3 nuts, so maybe that's the way to go.by degroof - Reprappers
I was sitting here minding my own business when a thought struck me. I took a small piece of both HDPE and UHMWPE into the kitchen and dropped them into cooking oil. both sank extremely slowly. When I repeated this with dimethicone instead of cooking oil, the HDPE was actually buoyant. The UHMWPE still sank but just barely. Why was I doing this? It occurred to me that, if you had a liquid bath oby degroof - General
Yeah, I just noticed that one myself. As luck would have it, I'm fresh out of 10nF caps. Closest I've got is 50nF. Might have to scrounge one off an old circuit board. And, if you want to get really picky, the screws and nuts to mount the heatsinks are missing too. Of course, I'd have to question the nerdocity of anyone who doesn't have a few 440 (or metric equivalent) screws lying around.by degroof - Reprappers
Got a good chunk of the electronics built this weekend. The power/comms board and all three stepper drivers are working. The only difficulty I ran into was that, following the build/test instructions on the reprap site, I found that one test failed. Turned out it was because the sync line was floating. Once I got around that, though. everything else was fine. Had all three motors running at oncby degroof - Reprappers
I see where RRRF has nozzles and barrels for the extruder. And it sounds like the printed (or molded) parts will become available soon. Any sources for the split bearing and extruder screw? I don't think my meager machine-shop skills are up to the challenge of home-brewing those.by degroof - General
I'm in Garner, NC. I've been lurking around the various RepRap sites for a couple years now. I've just now (i.e. this week) started gathering materials to build one.by degroof - Reprappers