Mazak Impulse - Oak retrofit build log

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tblough
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Re: Mazak Impulse - Oak retrofit build log

Post by tblough »

Should be able to get it at automotive body shop supply stores, unless no one has auto accidents in NZ.
Last edited by tblough on Mon Aug 30, 2021 8:49 am, edited 1 time in total.
Cheers,

Tom
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I have CDO. It's like OCD, but the letters are where they should be.
martyscncgarage
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Re: Mazak Impulse - Oak retrofit build log

Post by martyscncgarage »

ashesman wrote: Mon Aug 30, 2021 2:36 am
martyscncgarage wrote: Sun Aug 29, 2021 8:37 am 3M panel bonder. Type used for bonding auto panels.
Thanks, I thought the same as it looks perfect. But I cant find anywhere to buy it here in NZ. Half the country is on lockdown for a while yet! I think it is also only available in tubes that require a special gun and disposable nozzles?
Find a local auto body supply shop and ask for panel bonding adhesive. 3M is not cheap but it's good. I'm sure there are others out there
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polaraligned
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Re: Mazak Impulse - Oak retrofit build log

Post by polaraligned »

Brazing would work really nice too with no distortion and little clean up.
ashesman
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Re: Mazak Impulse - Oak retrofit build log

Post by ashesman »

polaraligned wrote: Mon Aug 30, 2021 7:29 pm Brazing would work really nice too with no distortion and little clean up.
I didn't even think of brazing or soldering. That's a good idea.
Davesvo
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Re: Mazak Impulse - Oak retrofit build log

Post by Davesvo »

You could run a Buck/boost transformer to get your voltage up for your drives. Might solve your rpm problem, I don't know what your load current is for your drives but the transformers are pretty small and a easy solution. We use them to connect machines on a 208 service that require 230-240V.
ashesman
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Re: Mazak Impulse - Oak retrofit build log

Post by ashesman »

Davesvo wrote: Thu Sep 09, 2021 8:11 pm You could run a Buck/boost transformer to get your voltage up for your drives. Might solve your rpm problem, I don't know what your load current is for your drives but the transformers are pretty small and a easy solution. We use them to connect machines on a 208 service that require 230-240V.
Currently I am actually converting it down from 415V to 200V three phase with a 7kVA auto transformer. I have 240V single phase available too but there are still some 200V parts on the machine so I just left all at 200V single phase.

I was more annoyed at paying for motors that were supposed to do what I asked for then didnt!
ashesman
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Re: Mazak Impulse - Oak retrofit build log

Post by ashesman »

Its been a while... I decided to take some time off this project as it was starting to frustrate me. Anyways before I did, I did run a test part. Below is a picture of the same part run on the Mazak OEM controller with a program that took its entire 48k memory and one on the Centroid (~1 Mb program). You can see the difference. Although the Centroid program did take about 10 times longer to run ;-) The part run on the old controller required a fusion 360 tolerance of 0.5 to make the program small enough to even run.
20211005_190206.jpg
20210905_181506.jpg
After a fair bit of testing, I am pretty sure there is something gammy in Centroids spindle encoder zeroing function M150. It means I can never have a safe reliable zeroing of the spindle and reliable orientation controlled by the Centroid PLC (without adding additional position switches and running M150 repeatedly until it works!). I already had one tool change where it oriented incorrectly and mashed the tool rack!

I bit the bullet and bought a Delta C2000 drive and encoder card. Annoying as I already bought a really nice $1000 USD Hitachi SJ-P1 that is awesome all but its inability to do position control on a permanent magnet motor! I really hope the C2000 can run the spindle as nicely as the SJ-P1. Once installed I will remove my orientation code from the PLC and go back to a VFD controlled orientation. At least then it should always stop at the correct position!

I have been tacking away at modifying the machine covers to clear the longer DMM servo motors. Ergh, spray painting, my old enemy!
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