Changing the spindle on a Zenotec Mini

Getoothachopper

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Been running the mill for 5+ yrs now and am starting to notice a few small problems I think are spindle-related. Anyway, it's about time I changed it . I've seen a place in LA where they rebuild including the sensors . Switching the part out looks pretty straightforward. I have seen people talking about the recalibration process once the rebuilt one has been installed. My question is ,,,,,,,, Is this a regular Calibration or some special software only Ivoclar has ? I've had the mill since new and love the simplicity of the cam. It has never given me a problem and would love to keep it going as my backup for a few more years . Any advice on anyone who has done this would be appreciated.
zenotec-mini-Image-676195EU-3.jpg
 
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I have nothing to add other than I love the zentotec cam software. I miss it for cranking out single units. Millbox is painfully slow in comparison.
 
Getoothachopper

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I have nothing to add other than I love the zentotec cam software. I miss it for cranking out single units. Millbox is painfully slow in comparison.
Right !!!Beer,,,,,, that's why I really want to keep this going .
 
Car 54

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Same here. I'll be curious to find out, as I'm at about the same timeline as with you regarding my Mini.
 
Affinity

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That sounds like a dealer recalibrate. I know my vhf needs a metal touchplate to recalibrate the axis, something only the dealer has, not to mention hidden menus to enable axis calibration, which ive done, but can be scary if you do something wrong...
Getting it out is probably not that difficult, having it out and then having to fly in a tech to calibrate it, thats another $tory.
 
Getoothachopper

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That sounds like a dealer recalibrate. I know my vhf needs a metal touchplate to recalibrate the axis, something only the dealer has, not to mention hidden menus to enable axis calibration, which ive done, but can be scary if you do something wrong...
Getting it out is probably not that difficult, having it out and then having to fly in a tech to calibrate it, thats another $tory.
That's what I was afraid of :oops: . I have started a ticket through Ivoclar to see what they say . I am also going to talk to the guys who do the rebuilds and see what they say . A few years ago I was replacing the rubber tool holders (you have to have tech access to redrill them) Anyway Scott over there at Ivoclar was very cool and unlocked that feature for me.
 
Car 54

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If Paul still works there, he's another good one as far as mill support.
 
Getoothachopper

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An update (for Car54) Yes Paul is still there and is an incredibly helpful guy. I have decided not to go with a rebuilt spindle which was going to be around $1800 and get a new one from Ivoclar $2700. This morning I removed the door and pistons & the backplate to give me access to the spindle .If you need help Paul will talk you through any of this stuff . I did buy the mill from them many years ago but what absolutely blows me away is that they still help me out with any problems . I never hear 'Oh it's no longer covered so there will be a charge for any help !' WELL DONE IVOCLAR. When I've installed the new spindle Paul will help me through all the calibration. Anyway I can't say enough about their level of service long long after they sold me the machine. The next mill I buy will be from them again.
 

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Getoothachopper

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Here are some better quality photos , this machine was so clean inside when I opened it up , VHF really build quality
 

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Tayebdental

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I calibrate my machine ( if needed) and even drill the rubber bur holders with the mill software If I need to replace to new ones, vhf mills are top notch
 
Car 54

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An update (for Car54) Yes Paul is still there and is an incredibly helpful guy. I have decided not to go with a rebuilt spindle which was going to be around $1800 and get a new one from Ivoclar $2700. This morning I removed the door and pistons & the backplate to give me access to the spindle .If you need help Paul will talk you through any of this stuff . I did buy the mill from them many years ago but what absolutely blows me away is that they still help me out with any problems . I never hear 'Oh it's no longer covered so there will be a charge for any help !' WELL DONE IVOCLAR. When I've installed the new spindle Paul will help me through all the calibration. Anyway I can't say enough about their level of service long long after they sold me the machine. The next mill I buy will be from them again.

This is good news, and confirms my decision in buying my Dry Mill from them; VHF quality and Ivoclar support.
 
Tayebdental

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But I noticed that friction from dry milling and movement of air vacuum and compressed generate static electricity which causes milled particles to stick to everything it touch regardless of good suction. From my understanding new and advanced 5axis VHF mills has some feathers to eliminate static electricity by ionizing
I am trying to read more on eliminating or minimize static electricity on my current VHF mill if I can.
 
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Car 54

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I get a bit of that, too. A new or cleaned suction filter does help with the dust, though.
Do you notice if it is more of a problem during this time of year, when the furnaces are on and the air is drier? I run a humidifier to get some moisture back into the air. Even my wax jumps off the electric waxer tip onto the dies when I'm waxing, if I don't put some moisture back into the air.
 
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Car 54

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This is what Bob was able to do with his set up in regards to lack of milling debris after milling 5 - 6 crowns.
Without an ionizer, milling PMMA is going to be a more of mess to clean up. But maybe the bigger chambers of some mills like the K5, K5+
etc, can be a bit harder to keep clean anyway, as I'm finding compared to the Mini.
 
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Affinity

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You didnt have to do an axis calibration after install? Or can you do it just on the touchplate sensor?
 

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