Machsupport Forum

General CNC Chat => Show"N"Tell ( Your Machines) => Topic started by: TDAY on April 12, 2016, 08:51:26 AM

Title: Lagun KneeMill Mach4 Pokeys Retrofit
Post by: TDAY on April 12, 2016, 08:51:26 AM

Hello all,
 Got another project at work. Retrofitting an old Lagun knee mill that has done more sitting than running in its life. The old Westamp amplifiers were the main issue. Its got an old Autocon Dynapath Delta 20(anyone want it;) that will not come out of fault now. So boss opted to retrofit it. ;D Iam using a Pokeys57E , CNCdrive servo drives and same unknown servos that are on machine. These servos where originally set up with an tachometer. I had a BEI encoder, so i made an adapter for it to bolt to servo and had to machine down housing height where the TACH was bolted. After some messing around with the settings of servo drive i got a test run on the Y axis....wow...never heard these motors run so quiet and smooth, with the old setup they used to have a super high pitch that would drive you nuts!

Title: Re: Lagun KneeMill Mach4 Pokeys Retrofit
Post by: TDAY on April 12, 2016, 09:00:01 AM

Few more pics...

Title: Re: Lagun KneeMill Mach4 Pokeys Retrofit
Post by: TDAY on April 12, 2016, 09:12:23 AM

Drives and heat sinks mounted up.

Title: Re: Lagun KneeMill Mach4 Pokeys Retrofit
Post by: TDAY on April 12, 2016, 09:14:34 AM

Braking circuit mounted with a heat sink.

Title: Re: Lagun KneeMill Mach4 Pokeys Retrofit
Post by: TDAY on April 12, 2016, 09:15:58 AM

Good bye old control :( :)

Title: Re: Lagun KneeMill Mach4 Pokeys Retrofit
Post by: TDAY on April 15, 2016, 10:51:01 AM

Does anyone know the protocol for fusing Servo Drives, Power supplies  and such? I have been in several industrial cabinets and some are fused and some are not. Do you need to fuse the incoming DC voltage to a servo drive? And should the DIN rail power supplies be fused on the AC input, DC output or both?
Any input much appreciated.
Thanks,
Troy

Title: Re: Lagun KneeMill Mach4 Pokeys Retrofit
Post by: mc on April 15, 2016, 06:38:00 PM

I can't comment on DC servo drives, but I'd be inclined to replicate whatever the original setup was.

Most DIN rail supplies only need fused on the input, as if they're switched mode supplies, the outputs will have inbuilt protection. Usually the manuals will give you suggested fusing.

Title: Re: Lagun KneeMill Mach4 Pokeys Retrofit
Post by: DICKEYBIRD on April 16, 2016, 11:11:55 AM

I really like your posts TD.  Way above my level of CNC tinkering!  I enjoy the conversion project threads & seeing how it's done.  I went onto your website & spent some time there.  Thanks for taking the time to put it together.

Having said all that, :) could I ask one small favor?  Could you resize your pics?  Either that or can someone please clue me in as to how I might view these pics without painfully scrolling them around on a 1024x768 screen?

Title: Re: Lagun KneeMill Mach4 Pokeys Retrofit
Post by: TDAY on April 17, 2016, 09:07:55 AM

Thanks. Stick around this group and you will get more info on DIY CNC than you will know what to do with ;) Whoops ... got a new camera ,forgot to change setting on camera, still figuring it out :)

Title: Re: Lagun KneeMill Mach4 Pokeys Retrofit
Post by: TDAY on April 19, 2016, 03:28:11 PM

Got some more parts mounted.

Title: Re: Lagun KneeMill Mach4 Pokeys Retrofit
Post by: TDAY on April 19, 2016, 03:30:58 PM

Got drives all wired up,relays wired and DIN rail power supplies. Working on wiring up more I/Os to the Pokeys.

Title: Re: Lagun KneeMill Mach4 Pokeys Retrofit
Post by: TDAY on April 21, 2016, 01:52:26 PM

Got more wired up. The Buttons on front of Head are now all wired. Iam now configuring Mach and Pokeys.Waiting on some more panduit/ slotted wire conduit to button up the cabinet.

Title: Re: Lagun KneeMill Mach4 Pokeys Retrofit
Post by: TDAY on April 21, 2016, 01:56:01 PM

Can anyone give me a basic walk threw of configuring a external push button to work as a Cycle Start in Mach4 and Pokeys 57E?
Thanks,
Troy

Title: Re: Lagun KneeMill Mach4 Pokeys Retrofit
Post by: TDAY on April 26, 2016, 08:46:34 PM

Getting some help with the external inputs to the Pokeys.
http://www.machsupport.com/forum/index.php/topic,32424.0.html
And some more pics.

Title: Re: Lagun KneeMill Mach4 Pokeys Retrofit
Post by: dude1 on April 26, 2016, 09:46:20 PM

once you have the table done it should be ok, you just need Daz to check it if does not work they made a change to how it is done