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Rostock, Kossel, Simpson, 3DR, and more. See: http://reprap.org/wiki/Category:Delta. Previously named "Delta Robots and Stewart Platform"
Re: Delta robot extruder / sorter - building from scratch - 7 years ago
Sounds like you're building a Delta-based pick and place machine, correct? If so, the old FirePick project might be helpful.by Cobalt Griffon - Delta Machines
Re: Two rods on one (Delrin-) ball-effector - 7 years ago
Impressive, but I'm assuming that the rods are being held in by compression force from the retainer springs/tubes? What happens if the rubber wears out?by Cobalt Griffon - Delta Machines
Re: E3D's tool changing CoreXY design - 7 years ago
@Lykle, ID'd the servo as a SG90-type hobby servo, things are about 2cm*2cm*1cm not counting the mounting flanges. I'm currently in the middle of designing my own variation of the locking mechanics for use on a new coreXY machine, I'll post a link once it's working.by Cobalt Griffon - CoreXY Machines
Re: Beginner's questions about a custom delta design - 7 years ago
For a Kossel type machine, the linear rails really only need every other hole fitted with a screw, so you could use 2 inch spacing instead. As for the steel tubing, if it fits the corners and you're willing to put in the time, go for it, it'll make the frame stronger in the end anyway.by Cobalt Griffon - Delta Machines
Re: Stupid idea or not?? - 7 years ago
Looks ok, but you should push that simulation out to the edge of your print bed, that layout may restrict your maximum build diameter, but that shouldn't be an issue if you're building a small machine.by Cobalt Griffon - Delta Machines
Re: Standardised hot-end connector - 7 years ago
Well, I haven't done this myself, but E3D's current generation cartridge temperature sensors and the new 'high-precision' heater cartridges both include disconnect points about 3 inches up the wires, so you'd only need a 4 pin connector for the fans with the V6/Volcano, one pair for the part-cooling fan and one always on pair for the heat-sink fan. The Diamond is a completely different beast entiby Cobalt Griffon - Delta Machines
Re: High and low spots on delta print bed - need help and advice. - 7 years ago
You might want to check out Panacutt's Re-ARM board, it's a smoothieware CPU board that interfaces with a Ramps shield, would let you go 32-bit without redoing the entire wire harness. I've been using one as the brains of my main delta since they came out and I haven't had any problems. Here's my blogpost documenting the installation process.by Cobalt Griffon - Delta Machines
Re: DemonDeltaTube - A delta inside an acrylic tube... Build - 7 years ago
I was actually suggesting bringing the printer into a warm (around 20C) room to reduce the thermal stress otherwise I'd suggest being careful not to drop it lest the stressed acrylic crack and/or break.by Cobalt Griffon - Delta Machines
Re: DemonDeltaTube - A delta inside an acrylic tube... Build - 7 years ago
Yes, that's one of the known issues with acrylic, it gets brittle under heat stress. My suggestion to stave that off would be to move it to a warmer environment to reduce the thermal change, or just leave it turned off until warmer weather. Just my $0.02by Cobalt Griffon - Delta Machines
Re: DemonDeltaTube - A delta inside an acrylic tube... Build - 7 years ago
Looks like you might want to bump up the minimum layer time for small stuff, that funnel is looking a bit overcooked Fantastic build though, I wouldn't have thought of using a fish tank for a frame.by Cobalt Griffon - Delta Machines
Re: Kossel xxxl - 7 years ago
Looks like a game-tower PC water cooling component, probably the main reservoir or something related.by Cobalt Griffon - Delta Machines
Re: Micromake Delta noisy steppers - 7 years ago
Doesn't matter if the drivers are clones or not, it's the basic chips on DRV8825s that are the cause of the harmonics problem, some sort of design flaw from what I recall. Swapping to 4988's should correct the problem, they seem to work with just about anything just fine.by Cobalt Griffon - Delta Machines
Re: Micromake Delta noisy steppers - 7 years ago
What type of stepper drivers are you using? A4988 variants or DRV8825s? The DRV8825 drivers have known issues with crazy harmonic noise unless carefully matched with the stepper motors, most kits seem to miss this point or are designed by people who are tone deaf.by Cobalt Griffon - Delta Machines
Re: effector leveling - 7 years ago
Could just be your build plate glass rotating, I've had that exact glitch several times, glass is perfectly flat in one orientation, rotate it and glitch out time.by Cobalt Griffon - Delta Machines
Re: effector leveling - 7 years ago
Have you tried running through the Esher 3D Delta Calibration wizard? I use it all the time and it's perfectly flat every time. I've written up a usage guide here on my Blog.by Cobalt Griffon - Delta Machines
Re: Delta Segments per Second - 7 years ago
Why on earth are you running 8-bit Marlin on a Delta? If you're having issues with smoothieware locking up with a Windows host, just stick a OctoPi host in the loop instead, or were you using one of the MKSBASE variants? Also, since when is more speed a downside?by Cobalt Griffon - Delta Machines
Re: Sloping prints on Delta/Kossel - 7 years ago
Had that happen on my delta once, I'm using a v-wheel based motion system and it turned out the carriage wheels had come loose. If you've got linear rails, they might need lubricating, I'd suggest some form of silicone based lube, bit safer than some of the metal-based options. hope that helps, Cobalt Griffonby Cobalt Griffon - Delta Machines
Re: optimum dimenensions for a delta - 7 years ago
I'm currently running a Kossel XL, 1m tall, 306mm horizontals, 220mm build plate, printable XY 250mm Z 500mm Arms 360mm More Details: Build Logby Cobalt Griffon - Delta Machines