New machine vcore 4 machine with idex installed before commissioning
I am at the stage of doing the commission. However I seem to have issues with T1 toolhead drifting towards the center of the X-axis when when T0 is moving along the Y-axis. My initial thought was that I needed to install the hybrid belts, but the guide tuning gets difficult when doing so. I am sure I just missed something but am not sure what it is.
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You must, must, must install the hybrid belts. IDEX is just half of CoreXY. Let me explain. In Core XY, each of the lower motors would move the single toolhead in a 45 degree direction. Now in IDEX only 1 belt and motor is attached to each toolhead. That said, it's STILL COREXY motion related, in that the belt for that toolhead moves that head in diagonal motion. You must then have the hybrid belts and motors connected to control and move Y axis. That is why you are getting the result- IDEX must...
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Solution
You must, must, must install the hybrid belts. IDEX is just half of CoreXY. Let me explain. In Core XY, each of the lower motors would move the single toolhead in a 45 degree direction. Now in IDEX only 1 belt and motor is attached to each toolhead. That said, it's STILL COREXY motion related, in that the belt for that toolhead moves that head in diagonal motion. You must then have the hybrid belts and motors connected to control and move Y axis. That is why you are getting the result- IDEX must have hybrid or else it's just a big mess.
What you are reading, and to be fair, I too have an IDEX 400 and just set it up, is that they recommend tuning the COREXY belts first, and then adding hybrid, tuning that. But that only works for a plain CoreXY kit, that then gets the hybrid upgrade. Again, for IDEX, you have no choice, you cannot run in CoreXY mode, because each toolhead ONLY has one belt attached to it. So they can only control the head in X. That said, the belt -path wants to move the head in a diagonal of both X and Y, and hence why hybrid Y is needed as an imperative, you cannot even really test without it.
Thank you!
Had this issue as well, this note should be added to the commissioning guide, as it emphasizes not running the Y belts during commissioning.
@RatRigMig
@Cruz tag here to note this
Will add a Step to clarify this issue, thank you for your feedback guys!