Originally shared by BD BadDevices
http://baddevices.wordpress.com/2013/08/11/badprinter2-almost-finished-and-ready-for-bi-color/
Awesome work @Stefano_Pavanello . How fast have you got it printing so far? I’ve been wondering how speedy you can get with a core x/y system.
Thank you very much @Tim_Rastall , I think we can go very fast, we have a very light carriage, high torque motors and the E3D hotends. At the moment we try free movement up to 250 mm/s without problems, and printing at 100 mm/s, but now that we completed all the work on the printer we can fully concentrate on testing and tweaking. At the moment we run with reduced current in the stepper driver and I need some fine tuning, but at the moment printing with “normal” 70 mm/s gives pieces of good quality and we are satisfied with it. I’m very curious to see your Tantus running, I think also your XY will be very light and fast :-). Probably today we try some double color pieces, but it is the first time so we need to learn some more from slicing in two colors, for curiosity, which slicer/printing software do you use or prefer?
Those are some good speeds for a well tuned machine normally so I’m sure the ‘tuned’ speeds will be impressive. Don’t forget you can use your twin Hot ends in a perimeters/infill configuration with fine nozzle for perimeters and a wide nozzle for infill, if you combine this with an ‘infill every n layers’ setting like Slicer has, you should be able to significantly improve print speeds while maintaining a very good surface finish.
I hope the Tantus works out to be fast and accurate, it’s why I’m making it after all :).
I’m using repetier firmware, repetier host and Kissslicer. Kisslicer is great. much better than Slicer for supports and less prone to weird issues with infill etc. It’s dual extruder feature is a ‘Pro’ one though so it’ll cost you $40 but it’s well worth from what I’ve heard. In has a ‘prime pillar’ feature too that gets rid of any ooze when you swap nozzles during a print.
I’m searching right now the perfect combination, and using both cura and slic3r, but I need more experience testing ant testing with prints… also with failed ones. It is interesting your suggestion, I will check kissslicer. At the moment the idea of the two head is for double color or support material, but also the option to have different sizes can be an idea. Tomorrow I want to definitely tune the stepper driver and design a good duct fan to cool them to obtain the higher current possible and try to run fast speed and check 