My carve was going along nicely and I stepped out into the house for dinner for about 30 minutes and low and behold my DeWalt was sitting on the surface of my project having burrowed all the way down. When I tried to raise the router, the threads just spun and nothing happened. I manually raised it up and when my hand left the router, it just slid all the way back down again.
I slowly began disassembling things to try to figure out what went wrong. I’ve cut with this exact same .crv file before so I’m pretty confident there is nothing wacky in it. It appears something gave out in the z-axis to prevent it from holding it’s height. Since I didn’t actually see it go wrong, I can’t say for sure it was a z-axis failure. My plunge rate for the project was set at 35.
Here are some pics…
This looks like the mechanism that rides up and down the threads came apart and explains why it won’t stay up anymore. I’m tempted to epoxy it back into the gold housing and see if it will still work, but am afraid it will fail at another point in the future.
This is where the failure happened. It was near the end of the project and max depth was .125".
I’m not quite sure what to do now… I got the z-axis at Christmas and it has performed well for about 15-20 small projects. I’m not going back to the stock z-axis, that’s for sure.
I’m not sure whether to try to fix this or get another one?