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http://reprap.org/wiki/CoreXY
Re: Z axis gantry vs Z axis printbed - 8 years ago
Haven't tried a printer that moves the hotend in X Y and Z but I see some possible pros and cons to this configuration. First it would be easy to enclose and also the bed assembly and mounting is a lot simpler. The main draw back I see is that acceleration forces are now bearing on the Z axis rails which could produce Z wobble. Wire management is a little more complicated this way too. I can't reby Speaker-2-Animals - CoreXY Machines
Re: New Printer Design - 8 years ago
I did some more designing on this and made some significant changes. First the_digital_dentist has sold me on the mic6 plate. But I will embed high temp neodymium magnets into the underside so I can use a thin spring steel sheet to make the print surface easily removable. Very similar to the Buildtak flex plate system. The top side of the aluminum will be undisturbed by the magnets so I cby Speaker-2-Animals - CoreXY Machines
Re: New Printer Design - 8 years ago
@o_lampe I'm going to see how annoying it is to work around the cross bracing and perhaps remove the front cross brace if it's in the way too much. The enclosure is already built and the printer sits on a shelf inside so I can't put the motors outside. The attachment is a photo of it. The LMF08 bearings are pretty cheap I think I'll try it with and without them, the motors are integrated with tby Speaker-2-Animals - CoreXY Machines
Re: New Printer Design - 8 years ago
@ the_digital_dentist I do plan to use a heat spreader, something like an 18 Ga aluminum sheet. I really prefer easily removable beds and I like to have three beds on hand, although I could do that with milled aluminum. One thing that concerns me about the milled aluminum beds is having them warp over time. I don't really have a way to measure how flat something is so problems would just gradualby Speaker-2-Animals - CoreXY Machines
New Printer Design - 8 years ago
Hi Everyone, This is my design for a CoreXY machine. I'd like to print mechanical parts at high quality out of polycarbonate, delrin, abs and other "exotic" filaments. I've got a heated build chamber that it should fit inside. Travel moves of 200 mm/s, accelerations of 7500 mm/s^2 and print speeds up to 100mm/s would be my goal for speed. The math says this should be achievable but I'd be curiouby Speaker-2-Animals - CoreXY Machines