I have a j-cut 6090A bought new in 2008 with a water cooled spindle. I don't know what kw it is because I got NO DOCUMENTATION with the router. I have finally got the software operating and posted how I did it in the forum. The current problem is that the bore of the spring collet is .219" or approximately 5.5mm. This was determined by measuring the shank of the adapter supplied for use with the supplied engraving cutters. All the tooling I can locate has 1/4" or 1/2" shanks. I put a 1/4" shank cutter in the collet and only got 1-1/2 threads on the retaining nut and the taper of the collet was altered so as not to fit the spindle correctly. There was visable runout of the bit (.030?).
Surely someone uses bits larger than 1/8" shank in a machine which cuts a 600X900 mm area. There is a facing bit that comes with the router that cuts 24mm so I would think a 1/4" cove bit is not a peoblem.
What is needed is a spring collet with the external taper of the Chinese spindle and a 1/4" shank bore . Allternatively is there a recommended
supplier for a new spindle motor which uses 1/4" shank tooling.
wizzardworks