(11-26-2015, 11:01 AM)PixMan Wrote: Also, what size range are these chucks and are they the "genuine article" made in USA (Jacobs) and Germany (Albrecht) chucks or the cheap knock-offs? Have you mounted the chucks on quality arbors or "import" quality ones?
Lastly, don't overthink this. If the drills being used were high performance solid carbide you need 0.0002" runout. With HSS jobber length drills, anything under .005" or so should be fine.
(11-26-2015, 12:54 PM)EdK Wrote:Very Nice drill chucks there.... soon ill trade em up .and/ or replace. They are of decent quality , so was the arbors i had tested . Since Measuring from the collet face/d fixed collet test., having good indication of radial runout. However I suspect most deviation was due to poor repeatability . I suspect was most likely due to the angular component. My best guess you would have to expect this with a machine cost under 5k (CHINA MILL)(11-26-2015, 12:36 PM)johnnyc14 Wrote: ... I bought this Llambrich with a built in R8 arbor because they promise less than .0006" run out...
I also have Llambrich drill chucks and I've been very please with them for the money.
Ed
Anyways yea i was using decent arbors when originally running tests . however i did note each time i had isolated removing potential variation due to fitting arbor, run out became less however couldn't believe .0025- .003 (2-3" down) where end of drill would be l as being acceptable . guess need better equipotent , soon right now its all for hobby. Who knows i may go To Virginia and take up living n fishing again...
