Very Exciting Boring Machine Conversion

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dustboy
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Very Exciting Boring Machine Conversion

Post by dustboy »

Hi all,
I picked up a 1999 Masterwood Speedy 207 a while back with only 6 hours on it. Previous owner had bought it, and never figured out how to use it. I fired it up before the tear down and it ran perfectly. It’s a VERY solid machine, altogether weighs about 3/4 ton. Ball screw on X/Y. Envelope is about 32” x 60” x 3”.

It was built to be a CNC boring machine for use in cabinet manufacturing. The table is a vacuum pod-and-rail system for holding parts. The original machine head had no router spindle, only a boring block with a grooving saw and a horizontal boring spindle. No Z-axis other than a pneumatic actuator that hit a manually adjusted stop.

Image

The control was manually programmed by the operator but could not accept g-code from external CAM software. I gutted all electronics from the machine except for the power supply and brushed DC servos and encoders.

I’ll try to compile as much info here as possible, please let me know what is missing. I’ll be adding more over the next few days, CNC12 report to follow shortly.

Drives: Machdrive BRC on X/Y, Clearpath SDSK planned for Z
Servo X/Y: Brushed DC (see photo)
Image

Encoders: Hohner PRO1310/500 located on ball screw.

Image

Image

The current status of the build is that I have the X servo connected, trying to get motion. I can jog the X axis at the Acorn but not seeing any step/direction lights on the drive. Also the drive is not indicating input of A/B signal from encoder with manual turning of the servo.
Last edited by dustboy on Thu Nov 14, 2019 3:56 pm, edited 1 time in total.
My build: Making a CNC P-to-P boring machine less, uh, boring: https://www.cnczone.com/forums/diy-cnc- ... -axis.html
cnckeith
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Re: Very Exciting Boring Machine Conversion

Post by cnckeith »

cool. look like a nice score.. i'd go with new axis motors on all three axes for sure. :D
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
dustboy
Posts: 42
Joined: Wed Nov 06, 2019 8:54 pm
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Re: Very Exciting Boring Machine Conversion

Post by dustboy »

cnckeith wrote: Tue Nov 12, 2019 3:17 pm i'd go with new axis motors on all three axes for sure. :D
That was my first inclination, but I couldn’t find anything with a shaft OD that matched up with the drive sprocket. I figured I already had motors that were engineered to fit the machine, so I opened the electronic can of worms instead of the mechanical one...
My build: Making a CNC P-to-P boring machine less, uh, boring: https://www.cnczone.com/forums/diy-cnc- ... -axis.html
dustboy
Posts: 42
Joined: Wed Nov 06, 2019 8:54 pm
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CNC12: Yes
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CPU10 or CPU7: No

Re: Very Exciting Boring Machine Conversion

Post by dustboy »

report_38D2693C2480-0510180905_2019-11-13_19-37-18.zip
(281.62 KiB) Downloaded 156 times
Having some issues (MPU connection failed again) so I wiped the computer (this is a repurposed PC that was loaded with a lot of other software) and reinstalled only the essentials.

Now going through the CNC12 config wizard. What drive type do you recommend for Machdrives? "Other"? I'm not getting any step/dir signal to the drive, none seen on the oscilloscope.
My build: Making a CNC P-to-P boring machine less, uh, boring: https://www.cnczone.com/forums/diy-cnc- ... -axis.html
martyscncgarage
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Location: Mesa, AZ

Re: Very Exciting Boring Machine Conversion

Post by martyscncgarage »

Provide a link to the manual for the drives. You are sure they take step and direction?
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
dustboy
Posts: 42
Joined: Wed Nov 06, 2019 8:54 pm
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Re: Very Exciting Boring Machine Conversion

Post by dustboy »

Here is the manual for the Machdrives.

https://www.machdrives.com/pdf/BRB%20BR ... pdf#page16

Connection diagram:

Image

I’m using the PS that came with the Acorn for 0V and 5V on both Acorn and drives. The only terminal that isn’t connected on the drive is the ERR.
My build: Making a CNC P-to-P boring machine less, uh, boring: https://www.cnczone.com/forums/diy-cnc- ... -axis.html
martyscncgarage
Posts: 9914
Joined: Tue Mar 28, 2017 12:01 pm
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Re: Very Exciting Boring Machine Conversion

Post by martyscncgarage »

I believe you need to use the DB25 on Acorn. Get a DB25 male breakout from Amazon.
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
martyscncgarage
Posts: 9914
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Location: Mesa, AZ

Re: Very Exciting Boring Machine Conversion

Post by martyscncgarage »

If you are currently, trying to use the Acorn headers, you can try and go into the Advanced tab and invert step, dir, enable and see if that works....
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
dustboy
Posts: 42
Joined: Wed Nov 06, 2019 8:54 pm
Acorn CNC Controller: Yes
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Oak CNC controller: No
CNC Control System Serial Number: Acorn-905
DC3IOB: No
CNC12: Yes
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CPU10 or CPU7: No

Re: Very Exciting Boring Machine Conversion

Post by dustboy »

martyscncgarage wrote: Thu Nov 14, 2019 3:57 pm I believe you need to use the DB25 on Acorn. Get a DB25 male breakout from Amazon.
OK. What is the difference between the DB25 and the headers?

I’ll try inverting the signals first. The ENABLE signal is currently being received by the drive. So that’s a start!
My build: Making a CNC P-to-P boring machine less, uh, boring: https://www.cnczone.com/forums/diy-cnc- ... -axis.html
martyscncgarage
Posts: 9914
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
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CPU10 or CPU7: Yes
Location: Mesa, AZ

Re: Very Exciting Boring Machine Conversion

Post by martyscncgarage »

dustboy wrote: Thu Nov 14, 2019 4:21 pm
martyscncgarage wrote: Thu Nov 14, 2019 3:57 pm I believe you need to use the DB25 on Acorn. Get a DB25 male breakout from Amazon.
OK. What is the difference between the DB25 and the headers?

I’ll try inverting the signals first. The ENABLE signal is currently being received by the drive. So that’s a start!
DB25 is similar to a parallel port. 5vdc logic already there for Step Dir
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
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