Haimer 3D - Calibration Problems

[matt-b2]

Hi,

Does anyone here have a 'Haimer 3D-Tester New Generation' dial? I find I have to realign the concentricity of my dial every single time I use it - Not a single day passes by without the damn thing needing readjustment. Am I the only one who has this problem? Also, does anyone else find it takes a lot of force from the grub screws to get the probe concentric?

The whole point of buying the dial was to save time aligning things on my machine - I was not expecting that I'd have to frig about for 20 minutes every time I want to use the stupid thing. After using the dial yesterday, I accidentally broke the probe tip and almost threw the dial across the room! Wish I hadn't spent the money on it - a five quid wiggler seems to do a better job.

Matt.

[matt-b2]

Well, I guess the complete silence is testament to the value others see in the Haimer - In the junk drawer it goes.

[Neale]

Matt - there might be a lot of people out there, like me, who've never heard of these things before. I've just had a look at the website, and I can see that they might be useful to someone doing second-operation jobs who need to accurately reset workpieces. I suspect that a lot of CNC users don't work this way; one setup per workpiece where profile and internal machining is done at one setting is more common? I'm thinking out loud here, but that's the way I usually work. Vertical mill (mine is still manual - CNC conversion is on the list...) is a different matter. However, I find a conventional wiggler very quick and easy to use. Haimer seem to suggest that calculating half ball diameter is a complex, difficult, job. Maybe US education is a little different from European education, but I don't find calculating half of 0.2500 to be so very difficult. I don't even need to use my fingers to count or anything. And with a DRO, pick up the edge, switch to imperial, punch in 0.125 (+ or - as appropriate), and if necessary switch back to metric. And using a wiggler with a DRO to find centres is trivial.

Haimer seem to be talking of commercial systems where you can permanently put the edge-finder into a toolholder, and I would guess that this takes out recalibration every time you pick it up. Me, I'm swapping collets all the time and I would expect to recalibrate because I'm not sure that ER collets are that good. The wiggler is beautifully self-calibrating. But I don't have customers paying for my time so the time/money calculations are somewhat different.

[Web Goblin]

I did look at one of these a while ago and ended up buying the Tschorn one. Excellent little toy it is too.

[matt-b2]

Thanks for the replies - Most the things I do on my machine require second operations. I bought the Haimer in the hope it would help realign workpieces more accurately than a wiggler - Just seems to cause more trouble than it's worth though. I don't have any problems with my ER collets - No concentricity issues with my end mills.

[uli12us]

Are you sure, you have no spindle or toolholder problem. Maybe a little chip that is clamped between spindle and toolholder.

[Chaz]

I did look at one of these a while ago and ended up buying the Tschorn one. Excellent little toy it is too.

Sorry, old thread, looking for probes, my electrical el cheapo seems unreliable. I was looking at Haimer but found the Tschorn ones, it sounds like YMTTooling stopped selling Haimer (perhaps due to issues) and now sell these - http://www.ymttooling.co.uk/122-prob...ng-instruments. Will probably go for the VIP Plus one.

Any feedback or similar before I buy?

Thanks

[needleworks]

Sorry, old thread, looking for probes, my electrical el cheapo seems unreliable. I was looking at Haimer but found the Tschorn ones, it sounds like YMTTooling stopped selling Haimer (perhaps due to issues) and now sell these - http://www.ymttooling.co.uk/122-prob...ng-instruments. Will probably go for the VIP Plus one.

Any feedback or similar before I buy?

Thanks

Once again I'm gonna link to Cliff from "Down Under" his probes are coming along nicely now, and should be available soon.