[kevbo22]

To day I ran a indicator in the spindle, it was fine.. maybe 2 tenths out.
I put in the r8 and the haimer tool holder and ran the indicator in the tool holder bore. a thou of runout.
I ordered another tool holder from tomach last week, but it still hasnt come in the mail. I leave the country for work on friday morning for 2 weeks. I think im going to have to start back at it after I get back.

I would do the following:

1. Remove the R8 collet and indicate the spindle taper to see how true this runs.
2. Check that the R8 alignment pin inside the spindle is not sticking into the spindle too far. I had this once and it would impinge on the collet when tightened and cause runout.
3. Insert the R8 collet and a 3/4" ground rod or a long 3/4 dowel rod. The rod/dowel must be straight. You want some stick out so you can check runout close to the collet face and also a bit away from the collet.

As far a using a V block to indicate the probe tip in, that will get the probe tip concentric with the TTS shank, but if there is runout in the spindle taper or the R8 collet then the probe tip will not run true. The goal should be to get the tip to run true to the spindle bearings, so a V block isn't the correct choice in my opinion. I would do as you have been doing and make a clocking mark so that the probe can be inserted the same way each time.

"Check that the R8 alignment pin inside the spindle is not sticking into the spindle too far." ---How far is to far?

I have some precision ground drill rod, but I know its not straight. So should I use a gauge pin? Or would that be too short?

[mountaindew]

I checked my hamier after a few days of heavy use and found no movement of needle on a 0.0005 indicator. I would need a better quality indicator to see a problem. Also took the time to check run out on a number of tools in holders and found near 0 on tools in set screw holders and various surprising amounts on tools in collets.

Might be a little fussy but I think you can dial it in.

[TurboStep]

Are you tightening the drawbar when using the Haimer? Do you need to tap the drawbar to release it?
Step

[kevbo22]

Are you tightening the drawbar when using the Haimer? Do you need to tap the drawbar to release it?
Step

I do tighten the drawbar, but not so tight that I need to tap the drawbar to release the haimer out of the spindle.

[AUSTINMACHINING]

Are you tightening the drawbar when using the Haimer? Do you need to tap the drawbar to release it?
Step

I had pdb, so it was tightened like any tool holder.
Shouldn't need to tap it if the r8 collet is lubed on the outside taper.

[Bob La Londe]

Did you put a collar on it so you could use it for height offset as well?

[AUSTINMACHINING]

Did you put a collar on it so you could use it for height offset as well?

No need for a collar, just the Haimer. Height was set on the tts granite block just like all tools.

[kstrauss]

I think that his question was in relation to your usage of the Haimer to set Z-height of your stock. In my experience a tool with a 3/4-inch shank and flat top for the tool will vary slightly in Z location since the top of the tool rests on the R8 collet rather than on the spindle nose. I once tried to use a facemill with no TTS recess on the top. I eventually determined that the variation in tool length was of a result of how tightly the collet closed.

[kevbo22]

Hey everyone

I recieved some goodies in the mail today. I got the new tool holder, but I also recieved a new generation model haimer and tool holder for that I purchased.

I quickly went straight to calibrating the new generation model.... once calibrated, I took out of the spindle, put back in, and wouldn't you know it it repeats as it should!!!

I did this probably 20 times to make sure I hadn't lost my mind. It repeated every time!!

I WOULD LIKE TO THANK ALL OF YOU FOR TAKING THE TIME TO TRY AND HELP ME, ITS GREATLY APPRECIATED!

I guess I had just got a bunk haimer?!? But my new generation model works...and so now I am happy!

[mountaindew]

Awesome! The fun begins, I think you will find your Hamier a handy very precise tool. Quick tip the dial always turns clockwise moving into the probe tip. I keep that in mind and rarely break tips. After reading some posts here and doing some checking I decided to order a new 0.0001 indicator so I can get as fussy as everyone else. I spent an hour today aligning a 3 jaw chuck on my 4th axis. Fixtures and tools require a fair amount of time just to setup and use and or change out . And every little thing comes back to bite you somewhere big or small so it pays to check everything often. .