3 ms·
Are there any videos of it operating at full speed, though? Belt-driven printers have been able to operate at 800 mm/s and 200.000 mm/s² for a now, and can fin
by crote 3y ago
Are there any videos of it operating at full speed, though?
Belt-driven printers have been able to operate at 800 mm/s and 200.000 mm/s² for a now, and can finish a Benchy in under 3 minutes.[0] However, that requires some pretty serious part cooling - which seems absent from this printer.
It definitely looks like a very interesting concept, but extraordinary claims require extraordinary evidence. The whole reason CoreXY is so fast is because it minimizes the total mass being moved around, but these magnetic linear motors look a lot heavier.
[0]: https://www.youtube.com/watch?v=IRUQBTPgon4 https://www.youtube.com/watch?v=IRUQBTPgon4
- civilitty 3y agoLinear motors have been around for decades in high end CNCs, high speed pick and place machines, massive industrial conveyors, silicon fabs, even MRIs. They’re a well understood concept (it’s an “unrolled” rotary motor), they’re just difficult to design and expensive. The only extraordinary claim here is that they’ve managed to fit two axes in a $2,000 consumer device. From the video, it looks like they inverted the design so that the stator is a bunch of alternating magnets and they have a small coil on the rotor. I figure FPGAs and other electronics have finally gotten cheap enough to make them this small and cheap so if they manage to ship they might be the first. Personally I’ve been hoping the 3d printing community tackles linear motors and drives the cost down for years.