Good morning! So, here we go with yet another Hurco KMB1 retrofit. I recently acquired three Hurco KMB1 mills. Actually, (2) KBM1 and (1) KMB1x. I bought them unpowered :nono: but I felt the price was right. I've got them moved into my garage now (boy was that fun) and have started the pre-operational inspection.
Some shorthand for the next part...
M1 & M2 --> KMB1
M3 --> KMB1x
After a initial visual inspection, M1 & M2 seem to be in good mechanical condition. M3's spindle appears to be slipping (I can turn the spindle by hand but the belt between the spindle and motor does not turn -- maybe there is a sheared key on the spindle shaft). All machines are very dirty, so lots of cleaning in my future. It looks like some of the air tubes and electrical systems are disabled (cut). M2's spindle motor is not bolted down in its proper place (looks like it was slid back to accommodate a larger spindle to motor driver belt and is held to the frame by some clamps). M3's y-axis chip shield is stuck open and you can see the ball screw. Lot's of hours on the usage meters. Other than that, they look pretty good.
Next goal is to power up the machines and see what kind of operational condition they are in. I built a rotary converter a few years ago to try running a 3-phase compressor. I am going to use this as the initial power source. It's a screamer (very, very loud), so I'll eventually just convert the machines to single phase. Based on the schematics posted by those who have traveled this road before me, it looks like an easy task.
So, with that, let's begin the journey! I have so much to discover. So many new options to consider to drive the retrofit.
-Steve