When I built my ORD Bot, the instructions on the wiki got me 90% of the way there: Any questions I had could be asked in the ORD Bot forum, and were quickly answered: Perhaps Reprapdiscount expected you to know about those resources? In any event, they should've included those links in the package. I've considered buying from them, but haven't yet. Did you have missing parts or faulty parts?by kongorilla - General
@Crispy - Woops! I don't know what led me to that second video. Reckless youtube link following, I guess - *hiccup*. I knew it wasn't an HBot - that's what I meant by "more familiar design".by kongorilla - General
Phlatboyz made an HBot printer, but as far as I know, didn't release it. Judging by this more recent video, they decided to develop a more familiar design.by kongorilla - General
Thingiverse does have a forum of sorts, though it could be argued that a google group doesn't qualify. Thingiverse employees have responded to posts there about the recent changes, though, so there's at least some evidence that your complaints will be heard.by kongorilla - General
Rather than using spectra, has anyone considered using kevlar line? From my years of stunt kite flying, I know that kevlar will give you much more friction, which is bad for kiting, but I assume it would be good in this hbot application.by kongorilla - Developers
Thanks, guys. The 10K resistor between VDD and EN on the driver did the trick. I salute you! Moving on to the next challenge....*the crowd murmurs*by kongorilla - Reprappers
Thanks, Andrew. It might not surprise you, considering the evidence above, that I'm not 100% sure of where to connect to +5V. I'm assuming it should be the pin on the shield that goes right to the 5V on mega (third from the left, on the bottom), but my confidence is at an all time low about now. And there's also an unused pad labeled '5V' next to the 5A terminal block. ^^^^^Babe^^in^^Woods^^^^^by kongorilla - Reprappers
I removed the Y driver's header pin at EN, and soldered a 10K resistor between EN and the pin that goes to the mega that formerly had continuity with EN. The runaway Y-axis problem persists despite this. Did I do it wrong? By the way, I confirmed that the problem occurs when I hit the reset button on the RAMPS board, no host involved.by kongorilla - Reprappers
You're right, Andrew. I wasn't looking at the schematics, I was mistakenly going by the traces I saw on top. I now see the resistors are going to MS2 on the drivers. Now do you see why I'm hesitant to start soldering in modifications to the board? "Back up, everybody! He's got a soldering iron!"by kongorilla - Reprappers
Yes, if I disable the motors in pronterface the Y motor is released. My RAMPS is 1.3, which has 100K resisters on the EN of each driver. Looking at them, they are all decorated in 100K stripes, but when I put the probes to them they're each metering at 19.5K. The other 100K resisters on the board (the ones not connected to ENs on drivers) meter appropriately, around 97-98K.by kongorilla - Reprappers
Thank you for the reply, nophead. I forgot to mention that when communicating with me regarding matters of electrical engineering, you should picture yourself talking to a loyal dog that's wanting to please its master, but its head is tilted in confusion. The mega is reset when pronterface connects and disconnects? (I see the console says "echo: External Reset" after connecting, is that it?) Siby kongorilla - Reprappers
Hi Everybody, I've been trying to finish my first printer, and have gotten as far as getting all my axis and endstops acting as they should without too much hair pulling. Everything is working great except: When I connect to the printer (I'm using Pronterface) my Y-axis stepper is somewhat unpredictable. Sometimes it behaves as it should (waits for commands). Sometimes it whines for a few seconby kongorilla - Reprappers
nophead, I have experience making tech art with Blender and would like to volunteer my services, if you'd find it helpful. I can import all the pieces into Blender and render them for you. Or, if you think there's going to be an ongoing need for new renders, I can import all the pieces, set up the scene (settings, lights, camera) and send the file to you. You'd just have to move the parts aroundby kongorilla - General