I’m cutting out a wierd shape inside a box, for which the stock is 1.625" thick.
This is cleary too much for a #201 or #251 to deal with so, after I cut out the hole, I switched to a longer bit to cut the workpiece out of the stock.
Because the original toolpath was set up for the #201, which I realised was too short, I used the Change Tool option to do just that using a bit with 62mm flues, and the BitSetter did it’s thing bringing the tool back to front and centre waiting for the Go! I hadn’t changed anything regarding the X, Y and X axies, so didn’t think it would be necessary to use the BitZero.
Except the bit didn’t rise up enough and ploughed straight into the stock - fortunately I was quick enough to stop everything before damaging the workpiece.
As the stock hadn’t moved and the BitSetter did it;s magic, why did this happen, please?
Post the .c2d file, generated G-Code, step-by-step notes on how you are securing your stock and setting zero and managing tool changes, and a photo showing how the cut turned out and we will do our best to work this out with you.
The stock was secured using two of these, and was zeroed to X, Y and Z axes using the BitZero v2.
Sorry, I didn’t take a photo of the cut, but essentially the bit moved from front/centre towards the through-hole, but didn’t go up enough to miss the stock, cutting about 13/16" from the bottom of the stock.
When I paused the cut, the bit was stuck in the stock (from the front edge), so I had to turn it all off, physically move the router away from the stock, realigned the stock, replaced the long tool with the BitZero probe, reconnected the Shapeoko and intialised it, BitSetter did it’s thing, then I changed to the #201 and cut is as normal - except I only allowed it to cut part way through and cut the rest with a multi-function saw (like this one).
Just looking at @RichCournoyer post, it didn’t seem to be doing anything wrong or make any unexpected noises, but maybe with the stock and the bit, it was just too long? These are it’s dimensions (it’s a bit late to measure how far the tool extends from the collet, so I’ll do that in the morning)…
…as this leaves a 1.9375" so I could use the bit to cut anything up to, say, 1.8" thick?
In answer to your question though, @WillAdams, the flutes are 2.44" long, which are plenty long enough, but perhaps 2" flutes would have been better, in hindsight, giving me an extra 1/2" gap to play with.