1. Okay, I've finally got a 800W chinese spindle mounted, finished wiring, plumbing in coolant, decided to try it for the first time and the drill bit was obviously off-kilter (tracing a nice 2 mm diameter arc on rotation). So, I tried reseating it again and again, no joy, but what I noticed was with the clamping nut released the bit spun normally, and it was the action of tightening the nut that offset the drop of the bit.

    Anyway, looking down into the internal thread of the nut, something seems amiss - see photo.

    Before I try to source a replacement, am I being thick, or is this the Chinese at their best, unable to bore a hole centrally?

    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	1401311737_0.jpg 
Views:	111 
Size:	149.3 KB 
ID:	11460  

  2. #2
    Yes, they're supposed to be like that. There's a good explanation as to why here:

    ER11 Collets - Arc Euro Trade

    Are you inserting the collet using the procedure described above?
    Old router build log here. New router build log here. Lathe build log here.
    Electric motorbike project here.

  3. RIGHT!, I'm being thick!, yes, many thanks for that, Jonathan - that's brilliant and you've me the unnecessary hassle of ordering something I didn't need.


    (the way I look at it - a day you don't learn something new is a wasted day :) )



Similar Threads

  1. ER11 quick change system ?
    By routercnc in forum Tool & Tooling Technology
    Replies: 2
    Last Post: 21-01-2014, 10:11 AM
  2. WANTED: Wanted - a 1/4" (6.35mm) ER11 collet.
    By HankMcSpank in forum Items Wanted
    Replies: 4
    Last Post: 17-09-2013, 07:45 PM
  3. Replies: 1
    Last Post: 29-01-2013, 11:05 AM
  4. What does ER stand for in "ER11 collet"?
    By bruin in forum Tool & Tooling Technology
    Replies: 4
    Last Post: 06-09-2012, 01:36 PM
  5. ER11 Collet size lying?
    By Philly in forum Tool & Tooling Technology
    Replies: 6
    Last Post: 14-04-2011, 12:26 PM


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts