10-06-2013, 03:23 AM
One of the issues I face in getting my Kondia FV-1 mill up and running is one of multiple drawbar threads due to several different threads used on the tooling that came with the machine and that which I have acquired since (thread type is not a major factor when a super deal comes your way). My mill uses NTMB30 tooling, which has a small threaded tip at the top into which the drawbar screws into (for those who may not be familiar with this style).
At present, the different thread types are I have on my tooling are:
Initially I had though of simply making 3 different drawbars, one to suit each thread. My mill came with an ER32 collet chuck, so changing endmills will not be an issue. However, If I use my 3/4" drill chuck, then I will need to change the drawbar, as I would for face mills etc. I'm seeking your thoughts and comments, as to how I may best overcome this challenge (and selling off two of the three thread type tools isn't an option).
Some other thoughts I have had include the following:
Your thoughts, comments, suggestions...
At present, the different thread types are I have on my tooling are:
- M12x1.75
- 1/2-12
- 1/2-13
Initially I had though of simply making 3 different drawbars, one to suit each thread. My mill came with an ER32 collet chuck, so changing endmills will not be an issue. However, If I use my 3/4" drill chuck, then I will need to change the drawbar, as I would for face mills etc. I'm seeking your thoughts and comments, as to how I may best overcome this challenge (and selling off two of the three thread type tools isn't an option).
Some other thoughts I have had include the following:
- Weld up the 1/2" threads and drill and thread M12x1.75.
- Turn a slug with an external thread to match the 1/2" and then LocTight it into place. Drill and tap M12x1.75.
- Make a male/female adaptor with a M12x1.75 female thread.
Your thoughts, comments, suggestions...
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