It is indeed very similar to a dual MarkForge, just a slightly different belt routing. The kinematics math is the same. I think you are right that the racking forces are strong and this idea is badby bondus - CoreXY Machines
While thinking of alternative ways to do the kinematics of an IDEX machine I came up with this hybrid kinematics. The belt routing is like a CoreXY, but each loop is connected to a separate head. The Y axis (the gantry) is run directly by two belt loops, either by two steppers or pulleys connected with an axle. The main goal is, compared to a pure cartesian, move the heavy X motors to a staticby bondus - CoreXY Machines
If my theory is right it should indeed require more force to deflect the closer to the mounting points the bed is. You sound like the kind of engineer that might have the right tools to measure thatby bondus - CoreXY Machines
Very nice build! My first reaction was that your z-rail was far to small. And I can see that you have had issues with it too. One possible reason for x-wobble of the bed, that you do not mention on your project page, is that the whole z-rail and the extrusion it is mounted to can twist. Those 2020's are very easy to twist, and so is a little 12mm rail. It might help if you use a 2040 or 2060 extby bondus - CoreXY Machines
I consider building a similar thing. I suppose you have figured out that controlling such a beast is non-trivial. It does many moves through singularities and by inertia of the arms ends up on the "other side". I think some rotational encoder in the middle joints of the arms would be a good idea to know where outer arms actually are. Thinking out loud a bit: I think the sum of the length ofby bondus - Polar Machines, SCARA, Robot Arms
QuoteEd3D I'm kind of concerned about the hot end wobbling / not being as rigid if its clamped through the piezo. My other concerns is how the fillament guide would no longer mount to the hot end and so is pushing through the piezo too so extrusion / retraction will trigger the sensor? Maybe I'm misunderstanding on this one! Is the Orion better / more rigid than the simple disk? Could I integraby bondus - General
QuoteMoriquendi Forgive me if this is stuff you already know With the v1.2 Orions the output is open-drain. What this means is that the output can be pulled low by the Orion but it cannot be pulled up. When the Orion is plugged into a controller and the controller has pullups enabled there is a large value resistor (20-100k) between the signal line and V+ so the signal line is pulled up to V+. Wby bondus - General
@Moriquendi I have v1.2, it has the four 3-pins.by bondus - General
Looks like I busted my Orion while moving from one printer to another. It triggers properly, the blue diode lights up. It's just that the output signal has a value of ~0.6V when not triggered, it should be ~5V. I might have connected it wrong while rewiring and burned something. Question is if it worth trying to troubleshoot and repair it. I can't find any schematics. (Or I could cludge a tranby bondus - General
Klipper has done great progress for deltas recently.by bondus - Delta Machines