Once I finish my delta, I am definitely going to make and throw some of the good joints to amazon, probably aluminum version. I will machine the special metal part instead of M3 screw with press fit in there and a special top that will prevent it from interfering with the ball, along with special stiffest CF tubes. I am already testing wrapped CF vs Extruded for stiffness. The reason why they areby 3Dpassion - Delta Machines
3D Printing the cage isn't worth it imo. Will be crazy inaccurate. As a side note, I received those plastic joints on Friday and I am not sure what's the bad feedback is about, they are actually extremely solid and there is definitely zero backlash in them, super light too. With that said, M3 screw obviously will not secure that joint correctly, it needs a proper install, probably with M2 screw aby 3Dpassion - Delta Machines
Hi Guys. A little update from me: Purchased standard plastic ball joints (https://www.amazon.com/gp/product/B07Q2XLP42/) in M3 size. They are tiny, but also pretty strong. I only wish they made injection plastic part out of PTFE and not ABS, would help a lot. I may consider manufacturing those with PTFE if community will show any demand. And yeah, they are super light, and so far I feel zero bacby 3Dpassion - Delta Machines
Good point! Thanks for an idea. Will definitely research that!by 3Dpassion - Delta Machines
Thank you for advice guys. I am a bit hesitant about magnetic only because of their weight. The assembly is quite heavy (well, relatively). And I will also be targeting 10000 Acceleration and very high speeds (600ish), which may become a problem with magnets. As far as IGUS goes, do you think different orientation can solve angular limit issue? Say if I position them at ideal center angle insteaby 3Dpassion - Delta Machines
I see. Yeah, I checked their geometry. While seems alright, it is definitely not high end and I am trying to find a super lightweight solution, hence need to stick to plastic alternatives, have been checking out IGUS options for that, but their customer support is pretty bad, but they are the only ones who is making this type of ball joints in plastic.by 3Dpassion - Delta Machines
Yes, didn't see these. I only saw the steel ones. Interesting. I wonder how accurate these are. Gonna research this option for sure, thanks for the hint! My delta has hybrid circle-triangle bed shape with glass top and the circle is 270 and the triangle part has a max dimension of 310 and I plan to use 300mm arms for that. Ran simulation in my cad and seems to work nice. Ordered all sheet metal aby 3Dpassion - Delta Machines
Sorry guys for the wrong section, I didn't see the dedicated delta section when I posted. Thanks a lot for reply. Heard good stuff about SeeMeeCNC ones, but they are very heavy for my purpose also. Magnetic ones, I haven't tried, however it looks like there will be a lot of friction on most designs, which is also not optimal. I can design and machine my own joints as the last option (would ratheby 3Dpassion - Delta Machines
Hello everyone, I am finally down to develop my own Delta machine, which is already completed in CAD and I am about to get that all machined on a factory, BUT, but.. I am a little lost on ball joint models and to be honest I have never used any of those and hoping someone with more hands on experience can shed some light on this topic. What would be the best choice for ball joint regardless ofby 3Dpassion - Delta Machines
ABS simply requires 50-60% speed active cooling inside of enclosed chamber. And it will never warp. Simple as that. Try that. I can print ABS on any surface with my settings. I print it on bare clean kapton tape. Can even print with open chamber, it won't warp.by 3Dpassion - Printing
Hi Friends, I wanted to announce a launch of our Nova Kickstarter! A bit late and early birds are already long gone, but I just received a hint that reprap.org actually has this special section here, so I thought to give that a shot! Nova is a High Performance 3D printer hotend with a lot of useful features, premium materials and precision design. Find out more at our project page Nova Hoteby 3Dpassion - Crowdfunding Projects Announcements