QCW Stand / Kreg - Wobble?

[Aiph5u (Aiph5u (not affiliated with Onefinity))]

Hey Doinok,

@Doinok

The QCW stand looks good but is it truly wobble-free? From what I have seen on videos, the Kreg tables aren’t stiff and move significantly when the CNC is running.

neither the QCW frame nor a Kreg table will prevent that the Onefinity CNC machine will get twisted according to the floor irregularities, and the floor usually isn’t really flat, nowhere. The frame will not wobble, but be twisted.

A twisted machine can only produce twisted surfaces on your workpiece, that is why you always have to check a CNC machine for coplanarity. But with the Any Surface Leveling System (now included with QCW frame), you adjust your QCW Frame for coplanarity in case you moved the machine to another position on the floor.

@Aiph5u

For the check for coplanarity (that the machine is not twisted), you can use the fishing line method. There is a description linked here and here.

A measured twist of the machine can be compensated by changing the height of one foot of the machine. Since three points are always in one plane (a table with three legs cannot wobble), it is sufficient to bring the fourth foot into this plane by changing its height. Which foot this is does not matter. You can do this if you have the QCW frame by using the Any Surface Leveling System and adjusting the height of one foot. If you have an ordinary, not so stiff table, you can adjust that with a height adjustable caster. You may repeat this adjustment if you move the table to another position, because rarely is the floor perfectly flat.

Regarding stiffness of a Kreg table, I never used one but at first sight, it has no stabilizing diagonals, but many people seem to use one. I would prefer a stiffier table though. There are many shown, most made of wood, in this forum.

Welcome to the forum!