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Hey Fuzzy and Quentin,
The site was having issues with spam so they had to suspend the join function. Our “IT” team is working on it. This wknd no one will be at Makelab because of Barcamp. Everyone will be at that. But anyways if you need any info or anything let me know. I also hang out in IRC all the time. #makelabcharleston and #reprap
Hey fuzzyfish I’m in Charleston, too. You ever swing by makelab charleston? I have a morgan too would be fun to get together and talk about it. Here’s a video of mine printing it’s first object after getting it all calibrated and running good.
Thanks Quentin that answered all my questions. I’ll let you know how it goes. I can see the light at the end of the tunnel haha.
Ahhhhh. Thanks as usual Quentin. Yeah this will be a problem as someone else printed them for me. I might just machine the arms to insure they are the correct lengths. Because all 4 of my arms are definitely all over the place. Ouch. I’ve gotten it fairly close with some guessing. I actually got a cube to print at 20×19.4(or so)x20. Which is good enough for random stuff to show off. But not quite there for anything requiring dimensional accuracy.
printing your calibration shadow.
On the spreadsheet there is a reference to M365? Scaling factor? How do I enter that exactly? Just give it a M365 X# Y#? Which is x and which is y? psi or theta?
Sorry for all the questions. And Thanks Again.
Oh Quentin please don’t tell anyone about my over engineered belt clamps. I plan to make something simpler in the future, but I needed something quick to tighten the belts. I’m a tad bit embarrassed by them. I promise I will develop a simpler and easier to adjust system when I get a chance. I actually thought about incorporating the dovetail into the wheel in the future, that way you would only need to print 2 extra pieces. The belt wedge and the belt tightener.
Thanks! We still got a ways to go, though. If I could ever get the rest of my parts. It is very smooth and quiet. Much quieter than most builds that I’ve seen. Congrats to Quentin for spotting a great application for a SCARA arm setup. The light end effector loads of 3d printers are perfect for this configuration. Looks like progress is going well on yours, too.
Yes I will definitely be doing that but not until I’ve finalized the build and insured dimensions and assembly procedures are correct. I’m sure I’ve already pumped out enough disinformation to side track anyone’s build at this point. All the docs that are out so far aren’t exactly complete or totally accurate I just thought they might help some people. I’m almost there though. I’ve got a few changes to make and I need to decide on an extruder. After that I need to document everything (not exactly my favorite part). I’m also going to get rid of the 22-1/2 deg pvc fittings because they are too hard to find off the shelf. I’ll just make printed fittings like Quentin. I thought it would be easier to use off the shelf fittings……..
Got a small issue that I’m not sure about though. The z axis seems to be moving during the dry run I’m doing? Not sure why the Z is moving in flat layers. It seems to be moving in sync with the theta arm? And when it homes and making psi or theta movements there is no Z motion? The Z motion only seems to occur in a program. Video attached.
Alright got it running great. Not sure what happened when I tried using repetier but in the end I had to drop my Z axis homing feedrate. I’ll work it back up to a better feedrate at some point. It’s running GREAT! So quiet. Great design. Now I just need to get my J-head and it will be time to print some stuff. Here’s a video of it doing a dry run.
Yeah it wasn’t too far off. It’s no problem because I have to recalibrate the whole thing. A friend of mine suggested I use Repetier to do a dry run on it and I’m not sure what it did. It won’t move in Z anymore. It messed up my z stepper settings somehow. Stepper just screams now so I’m assuming it messed up the settings for that stepper somehow. That’s what I get for using pretty software. Stick to ugly stuff that works and your life will be much better in my experience. I think I’ll just use pronterface from now on. I sure wish there was a 3d printer software that displayed information like a real CNC machine. Like LinuxCNC. Would be nice to see XYZ abs, rel, and dist to go on these machines.
Ok well here’s a video of it going through the whole calibration. I think the M363 is coming out wrong though. Are the 2 psi arms supposed to form a 90 deg angle? Not sure what i screwed up.
Hey that would be great. Can’t wait to get it printing. Right now I have enough proof to start sourcing parts on this thing for our classes. Trying to get a supplier for the electronics as cheap as possible. I’ll have to warn everyone that takes our class and buys one of our kits that the materials were supplied by the lowest bidder hahaha.
