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Friday, I took apart the Z axis. It was easy, really. Only required taking the tool holder off, then 2 screws for the traveler where it attaches to the Z stage. After that, the Z stage comes off from...

Running some repetitive grooves with sharp corners as shown in image of intended results. By the end of the cuts, I have lost about 0.1" Z height. The actual lost height is about 0.95", give or take...

I concur that using an intricate piece is not the way to calibrate as well, but since all has been well up to now, this is how it came to be known. And I just kept digging and digging at it.
I made...

I recently replaced my drivers because one gave up the ghost, with DM 452A units, on Larken's recommendation. It was easy once I got the wiring straight. Thank goodness for optocouplers.

I have 3...

I have been running the Larken 2424 for oover 5 years now, with few problems. However, this morning, I just finished resurfacing my work surface and was setting up for a fresh job when I lost any X...

Can you advise on how to do that check?
Thanks!
Rocko

NWrepair1, this is certainly a ballscrew, and the thing is made with 1/2" aluminum all around, so I can't really see how you say it isn't built to take a heavy load. What do you consider more robust?...

No, the mfr recommended lube is graphite, but that doesn't affect the slop. I need to eliminate that. Anyone else have any feedback?
Thanks!
Rocko

I have been getting chatter on the plunge of the Z-axis for a while now. I finally measured the slop and it is 0.007". When I reduce the weight on the z-axis by lifting the router support while it is...