- Joined
- Sep 24, 2012
- Messages
- 484
Here's a couple standard torque charts...
http://www.engineershandbook.com/Tables/torque.htm
http://electronicfilters.tpub.com/TM-10-4330-237-13P/css/TM-10-4330-237-13P_105.htm
Ray
Thanks, Ray...
Here's a couple standard torque charts...
http://www.engineershandbook.com/Tables/torque.htm
http://electronicfilters.tpub.com/TM-10-4330-237-13P/css/TM-10-4330-237-13P_105.htm
Ray
When I trammed the column/head, I used one piece of shim stock to get things pretty close, then went around the column bolts to fine tune. Everything is very snug, some are just more so.
I'm not recommending my method, just telling you what I did.
Bill
Yesterday I leveled the mill bed and trammed the column. I looked in all the catalogs for slotted shims, but the smallest slot width I could find was 5/8". Since I mounted my mill on 3/8"-16 bolts, I had to make my own slotted shims. So I got an assortment of shim sheets, and made little 1" squares of .001", .0015", .002", .003", .004", .005", and .010". Then I proceeded to cut slots in each piece - all with an old (but sharp) pair of scissors!
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Cutting the thin shim stock was easy but the .010" was really difficult. But, I got the job done. I ended up with six squares of each thickness. So then all I had to do was start determining how much shim was needed under each corner of the mill's base casting. I started by making sure the bench under the mill was as level as possible, using a plain carpenter's level. Once I had the bench as level as I could get, I used a borrowed Starrett 98-6 machinist's level to deal with the mill table. After a lot of trial and error, I ended up with the right combination of shims under the mill base to get a level table. Once I had that done, it was time to tram the dovetail column. I used one of LMS's little gizmos to hold my DTI, and measured all four corners of the table. I used the same homemade shims to build up the corners of the column. I ended up with a total deviation of .001" along the full 18" of the X axis, and zero deviation from the front of the table to the rear of the table. Hooray!
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