| Gallery, Projects and General > How to's |
| Milling machine tram tool |
| << < (15/17) > >> |
| grayone:
--- Quote from: Spurry on December 06, 2011, 06:31:30 PM ---Just wondering how you reference those clocks to the bottom face of the gadget. They just seem to stick out (scientific expression :bugeye: ) a long way. Pete --- End quote --- I wondered about that as well as I am planning on making one. Dial gauges enroute from Hongkong so project 996 for when I retire :D My idea to calibrate it would be to pack up using parallels under the body with it sitting on a surgace plate. Then simply adjust the dial gauges until they read the same and tighten the screws holding them in the tool. |
| 75Plus:
The clocks are mounted so that the plungers can collapse inside the base. The unit is held firmly on a flat surface and the clocks zeroed. This is the reason it was so important to do the final machining on the stem while the base was clamped securely to a previously trued face plate. See reply #19 on page 1 of this thread for an explanation. Joe |
| Stilldrillin:
While admiring this design of tramming tooling for a long time now....... :clap: :thumbup: I can't get away from the concern that it must stay square to itself. Also, it must be mounted perfectly square to the m/c spindle. How do you know it is still in spec, after some use? :scratch: The last pic. above, assumes the drill chuck is perfectly true to it's arbor, and tailstock centre line....... David D |
| spuddevans:
--- Quote from: Stilldrillin on December 07, 2011, 02:14:00 AM ---How do you know it is still in spec, after some use? :scratch: --- End quote --- I suppose you take a reading, note down the results, and then rotate the spindle 180 degrees and see if the readings for each end still match the 1st set of readings :scratch: Tim |
| sbwhart:
--- Quote from: spuddevans on December 07, 2011, 02:19:18 AM --- --- Quote from: Stilldrillin on December 07, 2011, 02:14:00 AM ---How do you know it is still in spec, after some use? :scratch: --- End quote --- I suppose you take a reading, note down the results, and then rotate the spindle 180 degrees and see if the readings for each end still match the 1st set of readings :scratch: Tim --- End quote --- Thats what I do with mine its still OK after a souple of years use. Stew |
| Navigation |
| Message Index |
| Next page |
| Previous page |