Tree Journeyman 425 mill - Acorn, ETHER1616 and DMM DYN4

Post your completed retrofits for the world to see.

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slodat
Posts: 793
Joined: Thu Apr 12, 2018 11:16 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: none
DC3IOB: No
CNC11: No
CPU10 or CPU7: No

Tree Journeyman 425 mill - Acorn, ETHER1616 and DMM DYN4

Post by slodat »

Successfully completed control installation on a 1990 vintage Tree Journeyman 425 milling machine. It originally came with Baldor DC servos, Dynapath Delta 20 control, Yaskawa spindle motor and vfd, and in general is a very nice candidate for a controls upgrade. They are well built machines that were well equipped when new. The DMM NEMA 42 A15 1.3kW servos bolted in place of the existing servos without incident. I am powering the machine from single phase 240v, so I had to upsize the spindle drive to accommodate that. I went with a Hitachi SJ-P1 vfd. I'm quite happy with the entire range of products used in my conversion. All of the original auxiliaries are working as they were previously - lube pump and level switch, all axis + and - switches, drawbar control, spindle cooling fan, etc. I installed a Fog Buster system and decommissioned the existing flood coolant pump.

I added an off delay timer for the spindle motor fan and several interposing relays that are driven from the Acorn/EHTER1616 output relays. I bought nearly everything from Centroid, DMM and Automation Direct. All control wiring is 18awg MTW from Automation Direct.

The day I bought the mill when I was picking it up:
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Before photos showing what I started with:

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I wanted to keep the original machine look and feel. I made a new panel to fit the existing control console enclosure.

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The end result:
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All told, including the small amount I paid for the machine, I have less than what the most stripped down Tormach 1100 would cost and I have a MUCH more capable machine all around. I am very happy with the base machine itself and the machine as a whole now that it is up and running. I'm happy to help if this is something you are considering. I did a build thread for the machine that shows a bit more of the process and some of the things I encountered along the way. This is my second Acorn machine and I'm already looking for a lathe to retrofit.
martyscncgarage
Posts: 9912
Joined: Tue Mar 28, 2017 12:01 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
Oak CNC controller: No
CNC Control System Serial Number: none
DC3IOB: No
CNC12: Yes
CNC11: Yes
CPU10 or CPU7: Yes
Location: Mesa, AZ

Re: Tree Journeyman 425 mill - Acorn, ETHER1616 and DMM DYN4

Post by martyscncgarage »

Congratulations on the build! Nice work. Persistence paid off for you.
Post a video clip of it chewing away at metal some time!
Marty
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
cnckeith
Posts: 7164
Joined: Wed Mar 03, 2010 4:23 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
Oak CNC controller: Yes
CNC Control System Serial Number: none
DC3IOB: Yes
CNC11: Yes
CPU10 or CPU7: Yes
Contact:

Re: Tree Journeyman 425 mill - Acorn, ETHER1616 and DMM DYN4

Post by cnckeith »

Nice!! thanks for posting.
Need support? READ THIS POST first. http://centroidcncforum.com/viewtopic.php?f=60&t=1043
All Acorn Documentation is located here: viewtopic.php?f=60&t=3397
Answers to common questions: viewforum.php?f=63
and here viewforum.php?f=61
Gear we use but don't sell. https://www.centroidcnc.com/centroid_di ... _gear.html
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