Bernd
Well-Known Member
This probably shouldn't go under "Machine Modifications". I didn't do anything to improve the mill.....but, mmmm, perhaps I did modify it by taking out the hi/lo range gear.
Below is a picture of the Hi/Lo range gear. If you look close you'll notice a couple of cracks. ???
In the next picture you'll see the modification I did to it. :'(
This happened at high speed, low range gear setting. I was using a long 4 lipped end mill. I used the end mill like a drill to remove waste material on an aluminum piece to round a corner. It's the same idea as chain drilling and then filing the cut out part. Well, one of the lips caught an edge and it was all over. When I heard the snap I figured is was the upper gear set. I had all ready replaced those once and had ordered two sets in case this happened again. Not so lucky this time. Will have to order replacement from Grizzly ASAP.
I'll take a few more pics of the part I was doing, after I stop crying. :'(
Bernd
Below is a picture of the Hi/Lo range gear. If you look close you'll notice a couple of cracks. ???
In the next picture you'll see the modification I did to it. :'(
This happened at high speed, low range gear setting. I was using a long 4 lipped end mill. I used the end mill like a drill to remove waste material on an aluminum piece to round a corner. It's the same idea as chain drilling and then filing the cut out part. Well, one of the lips caught an edge and it was all over. When I heard the snap I figured is was the upper gear set. I had all ready replaced those once and had ordered two sets in case this happened again. Not so lucky this time. Will have to order replacement from Grizzly ASAP.
I'll take a few more pics of the part I was doing, after I stop crying. :'(
Bernd