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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: Have you seen the Delta-Pi? - 10 years ago
As mike said, anything that is softer than aluminium to cover the bearings should work. Just make sure that whatever you put around the bearings has a consistent thickness and a smooth join if you use the sticky tape you mentioned. Right now what I have in mind is a kossel scaled up x2 with all the prints 2x the size with 30mm aluminium extrusions. I may change my mind yet again, but I think I'veby TheTechnicalNoob - Delta Machines
Re: Have you seen the Delta-Pi? - 10 years ago
I will certainly test it. Currently my bearings and pulleys are in the mail, along with my hotend. So once those arrive I can get goingby TheTechnicalNoob - Delta Machines
Re: Issues with slicer. Please help! - 10 years ago
Looks like it's skipping steps, but at the same time, it seems weird where it is placing a second layer with nothing underneath, even if the layers were aligned over each other properly. Could you post the gcode file? If you like I could give it a go just to make sure that part it ok.by TheTechnicalNoob - Reprappers
Re: Help with filament drive reels - 10 years ago
The only thing I can think of is either put the string directly on the motors shafts (I'm guessing its going to slip a lot), or find a place to machine a pulley or buy/order some. I found one site that sells machined pulleys, 7.95usd a piece..add shipping (its christmas) mmm might take a while.. You could try find someone locally or elsewhere that will print you some pulleys.by TheTechnicalNoob - Delta Machines
BOB Simpson development - 10 years ago
Hi people, Just wanted to give you a heads up that Nicholas is fundraising the development of the BOB Simpson Link to thread: I trust in his capable and skilled hands that he will achieve what he sets out to do. If you like this and want this goal to be achieved, help fund the project! With many of us chipping in a small amount we can help Nicholas cover the costs of the development. You mayby TheTechnicalNoob - Delta Machines
Re: Easier extraction from heated bed? - 10 years ago
What material are you printing on and what type of plastic are you using?by TheTechnicalNoob - Reprappers
Re: christchurch meet and greet - 10 years ago
Count me in. How many others? What date?by TheTechnicalNoob - New Zealand RepRap User Group
Re: Sextupteron - 10 years ago
Has a 5 axis robotic arm been considered? Belts, string and printable gears come to mind. A regular mendel 90 with a rotating bed (edit: like ddseeker suggested in the link above) is probably most straight forward.by TheTechnicalNoob - Delta Machines
Re: Have you seen the Delta-Pi? - 10 years ago
Effectively yes, like in the link. Just something soft to go around the hard bearings and soften the ride a bit.by TheTechnicalNoob - Delta Machines
Re: New Own Design Printer 'Cherry Pi' - 10 years ago
EDIT: nvm..by TheTechnicalNoob - Delta Machines
Re: SDramps conversion on SDTF Card Module for arduino+ramps 1.4 - 10 years ago
It works! Thank you!by TheTechnicalNoob - Controllers
Re: SDramps conversion on SDTF Card Module for arduino+ramps 1.4 - 10 years ago
I get the feeling it has something to do with the pins D53 and D49 on the board. I didn't connect them to anything as I didn't know where they go. Looking at the pins.h for marlin it looks like pin D53 is sdss whatever that may be. I haven't a clue where that goes on the SD reader..by TheTechnicalNoob - Controllers
SDramps conversion on SDTF Card Module for arduino+ramps 1.4 - 10 years ago
The above is what I have. I made a connector that connects the sd reader to the correspondingly labelled connections on the AUX3/SPI of the ramps board: I tested it and got no errors when it was connected. I ran a M20 command but it wouldn't list any files. The SD card is formatted as FAT16 with a file named print.gcode and later I tried print.gco as I thought perhaps the file names were the prby TheTechnicalNoob - Controllers
Re: New Own Design Printer 'Cherry Pi' - 10 years ago
It'd be easier for people to find the sketchup files if you add them on thingiverse instead of the github repo. .. and I can't find them on github site either..by TheTechnicalNoob - Delta Machines
Re: Have you seen the Delta-Pi? - 10 years ago
Mikep-nz would you care to post a picture of your aluminium extrusions that were ruined by the bearings?by TheTechnicalNoob - Delta Machines
Re: New Own Design Printer 'Cherry Pi' - 10 years ago
Quotemikep-nz The problem with using Aluminium tube as a bearing surface is that the soft aluminium surface is so easily damaged by dust and dirt and once it gets damaged it quickly deteriorates to the point of being useless. The usual solution is to use rollers made of something even softer than the aluminium eg. delrin. But I preferred to stick with a hard steel surface and the polished stainleby TheTechnicalNoob - Delta Machines
Re: Would someone be willing to sell me printed Kossel parts? (christchurch area preffered) - 10 years ago
Well, I guess this means I'll be off to build a repstrap. Lol, I picked up 4 scanners today. Busy busy building. I love it!by TheTechnicalNoob - New Zealand RepRap User Group
Re: Scaling Kossel - 10 years ago
The main trade off I hear reading this thread is that with larger size comes more flexibility in the frame which can be an issue. Here Leslie has upgraded her kossel mini to a larger size. Have a read in those thread, lots of info there for you.by TheTechnicalNoob - Delta Machines
Re: christchurch meet and greet - 10 years ago
Ok, so I've talked to them. They charge $100 for a day of using the place, and $70 for a night. Keep in mind this is a wood workshop and there will be wood dust. They run a night class and have an club day, so we'll also have to work around that. How many keen on having doing something? Would want to have enough people to cover 70 bucks..by TheTechnicalNoob - New Zealand RepRap User Group
Re: Which stepper to buy: 68oz 0.9degrees or 70oz 1.8degrees - 10 years ago
I ran some tests on my stepper motors. The motors are rated for 2.5 amps for a rated max torque of 4.8kg/cm. My drivers are A4988 compatible 2amp max and I'm running them on their max amps with heatsink and a fan over top of that. Well you know what. The max torque I get out of them is 2.69kg/cm. I'm not impressed. Uncle_bob, you told me 2.5 amp motors with 2amps stepper drivers isn't a good ideby TheTechnicalNoob - Stepper Motors, Servo Motors, DC Motors
Re: christchurch meet and greet - 10 years ago
What sort of date and time would suit you guys? I was thinking either a weekend, or perhaps a weekday night. Knowing what time we want makes things easier. I'll pop over tomorrow and see what we can arrange.by TheTechnicalNoob - New Zealand RepRap User Group
Re: I3 parts needed - 10 years ago
I might look at doing prints for people, but I don't have my printer built yet, and then there is uni coming up this year.. If I get time.. ^ ^by TheTechnicalNoob - New Zealand RepRap User Group
Re: christchurch meet and greet - 10 years ago
Would a building in rangiora be ok? I think the north canterbury woodcraft club in rangiora would be willing to let us use their rooms for a small fee. If you guys don't think its too far away, then I'll go ahead and ask em.by TheTechnicalNoob - New Zealand RepRap User Group
Would someone be willing to sell me printed Kossel parts? (christchurch area preffered) - 10 years ago
Hi everyone, Anybody in the christchurch area willing to print these parts for me? (parts attached) I'm willing to pay you for your troubles. I'm not to sure what a fair price is. Suggestions? I'd like to pay when I pick up as I think that's safer money wise for both of us. I still need a lot of bits, pretty much everything (frame, hot end, switches, bearings, pulleys) except for electronics anby TheTechnicalNoob - New Zealand RepRap User Group
Re: Have you seen the Delta-Pi? - 10 years ago
Quotebeamsaber My printer made it's first movements two days ago, and I'm starting on configuring it now. I am starting to wonder if I should invest in a multimeter because I have no clear way to confirm all the lines running to the motors, thermistor, etc are solid, as I've had to crimp-splice each one at least twice. You could make a continuity indicator, or just try using your printer and seeby TheTechnicalNoob - Delta Machines
Re: Have you seen the Delta-Pi? - 11 years ago
Quotebeamsaber Is the problem with steel bearings on aluminum that the steel will eat it's way through the aluminum eventually? Yes that's the problem. Perhaps having something softer than aluminium (heatshrink plastic) around the bearings it will solve the problem. Quotemikep-nz The problem with using Aluminium tube as a bearing surface is that the soft aluminium surface is so easily damaged bby TheTechnicalNoob - Delta Machines
Re: Have you seen the Delta-Pi? - 11 years ago
I recall reading about someone who reportedly used steel bearings on aluminium extrusions without problems by putting electrical heatshrink plastic around the bearings. Can anybody confirm that this works well? Mike, perhaps you would like to upgrade your delta-pi and try it? Perhaps you could even recommend it on the wiki page if it works successfully.by TheTechnicalNoob - Delta Machines
Re: Grounded Experimental Delta Printer - 11 years ago
What will be the first official print? Bart simpson from the simpsons tv show? but then you'd probably be sued for copyright infringment.by TheTechnicalNoob - Delta Machines
Re: Has anybody tried 3mm filament in airtrippers filament drive for rostock? - 11 years ago
Quoteuncle_bob It's the silly pound force thing all over, in this case it's kg used as force. There certainly are a lot of reports on these forums of people who are unable to get those torque level motors to work on direct drive extruders with those gear sizes. With the units straightened out, that sort of leaves the 3KG starting assumption. Yea that was really my question. I couldn't find anyby TheTechnicalNoob - Delta Machines
Re: Has anybody tried 3mm filament in airtrippers filament drive for rostock? - 11 years ago
My apologies. Here, units work out properly now: 3.8kg x cm / .4cm = 9.5kg the unit cm cancels out as it should. 4.8kg x cm / .65cm = 7.38kg To be technically correct kg isn't a unit of force, but gravity is present. So it does exert a force on it. Not that there is anything falling, but the unit kg has the assumption built in that we're on earth and gravity is 9.81m/sec^2 Force due to gravity:by TheTechnicalNoob - Delta Machines