Ok, so Joel pointed out that in my earlier post about setting up the Grizzley G3102 mill I kind of didn’t mention his fixing my mill. Honestly it completly slipped my mind!
Joel - I am not leaving until I see that mill cut something!
Some of the G3102s shipped with a slightly under machined downfeed collet. People with this problem have suggested all sorts of crazy ways to fix the problem. My personal favorite – which is even advocated by Grizzley when you call their tech support – is to wrap a stick with sand paper and jam it into the running spindle to wear down the high spot. No joke. Joel looked at the problem and said – Why don’t we use a break hone?
Cheap break hone used to fix the down feed collet
It took two of them to bring down the inside diameter enough. We used cheap ones that were only $3 each. If any of you are trying this fix at home it avoids wearing down the collet alignment nub. So I am very happy with this hack.