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Author Topic: Router Table Retrofit - Advice request  (Read 822 times)

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Router Table Retrofit - Advice request
« on: April 10, 2017, 06:46:56 PM »
Hello,
I hope I've done my homework correctly... (have a few remaining questions, and looking for someone to look over my proposed build).

My machine, a 4x8' router table was modified many years ago with a dc motor and a tapping head (self reversing Procunier #1E).  It has 2 Horizontal, and 2 vertical axis.  It was intended to have the two vertical axis (Z, W) drive synchronously in what would be a basic Line-At-Angle (except the hole spacing changes throughout the line).
Obviously, doing this with an old school DC motor becomes a difficult task because of speed and feed rates.  So, I was handed the machine and told to fix it.  This quest brings me to you.  I have done, in my mind, a good amount of research, and would like opinions on my results.  Here are my parameters;

1)The existing drives (Mitsubishi servo's) are wired for SD operation, and do function with Mach3 (which I will use for testing only, before going with Mach4 Hobby.
2)The new motors (we will call them spindles) will need to run between 400-1000 RPM, and provide no less than 18-20 inch pounds of torque at speed.
3)These spindles must be able to maintain relatively matched speeds, as they will be driving (10-32 and 12-24 SAE taps).

After doing my research, here is what I have come up with;

Software
Mach3 or 4 (demo mode, but will license for Mach4 Hobby)

Controller
https://www.poscope.com/product/pokeys57cnc/

https://www.poscope.com/product/cablepack-pokeys57cnc/


Motor
https://www.teknic.com/model-info/CPM-SDSK-3432S-RLS/

https://www.teknic.com/accessories/#product_783

https://www.teknic.com/products/servo-motor-dc-power-supply/#ipc-5-info
https://www.teknic.com/accessories/#product_328]https://www.teknic.com/accessories/#product_787
[url]https://www.teknic.com/accessories/#product_328

https://www.teknic.com/model-info/CPM-SDSK-3432S-RLN/

Tapping
https://www.maritool.com/Tool-Holders-Floating-Tap-Holders/c23_27/p65/ER16-Floating-Tap-Tool-Holder/product_info.html
  This allows for 5/16 deviation to compensate for any difference in vertical lift vs. tap rotational speed.

Question;
If anyone is familiar with any of the above, I would appreciate and feedback you have.
Anyone that feels compelled to chime in, feel free, please.
Will I need BoB's?

Other places I found information;
http://www.cnccookbook.com/CCCNCTappingFeedsSpeedsTechniques.html
http://blog.cnccookbook.com/2011/12/24/motion-control-boards-take-mach3-from-hobby-class-to-industrial-grade-part-2/

thank you for taking the time to read this, and thatnk you also (in advance) for any input you may have.
P.S. be gentle... this is my first time.