Bridgeport CNC with Masso Controller/Clearpath

Cooter Brown

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This is going to be my first CNC build and my First build log. I've decided that a build log on this forum might be a good idea for this project so the next guy to take on this project doesn't have to deal with the stupid stuff I'm already running into.

This is my Masso Controller
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I will be using 3 Clearpath Stepper Killer servos model# CPM-SDSK-3432S-RLN
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They are a little over 6" long...
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almost 3.5"
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1/2" shaft with a 3/16" keyway
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I will be using Teknic's IPC-5 75VDC power supply
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But before you can wire up you Masso controller you have to power up the Clearpath servos and plug them in to a PC with the ClearPath USB-B cable and it absolutely has to be their cable I've already tried 5 others, now I'm waiting for UPS to deliver a "Teknic Certified" USB cable. Very Lame....
Capture.JPG
Their program will not see my servos without the "Teknic Certified" USB cable...


Edit: Almost any USB cable will work.... lol
 
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Cooter Brown

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This is my 1960 Bridgeport J-Head that I will be converting. I just recently installed a zero backlash ball screw and a set of way covers.
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If you own a mill you need to have a heavy steel table on wheels, I was able to disassemble this machine by myself when I installed the ball screw. My table is an old safe from a KFC that was broken into the door is the 1/2' plate on the top.
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This is the VFD that I will be using for this project. Its a cheap Chinese VFD but it seems to work for now.
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Cooter Brown

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Wiring on the Masso Controller is kinda strange but it works great. To wire the inputs you just run one wire from the Masso 12-24VDC power supply's + terminal to any one of the input terminals. The software looks pretty nice. I might be able to use this setup as a DRO.... LULZ

MASSO-Mounting-2-1.png
 

Cooter Brown

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Everything that Masso has on their website for wiring a clearpath servo to their controller is wrong but I figured it all out now. I have all of the servos running with input from the Masso Controller. I'm going to start working on the servo mounts today.
 

BGHansen

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Everything that Masso has on their website for wiring a clearpath servo to their controller is wrong but I figured it all out now. I have all of the servos running with input from the Masso Controller. I'm going to start working on the servo mounts today.
Amazing that they would have the info wrong. Glad you got it figured out.

Bruce
 

Cooter Brown

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This is how Masso tells you to wire the clearpath..... It doesn't work at all!
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This is the correct way to wire the servo to the controller.
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Teknic_Servo

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Hi Cooter,

Thank you for sharing your build so far! I wanted to chime in on the USB cable issues you seem to be having.

In order to configure the ClearPath motors through Teknic's motor setup program(MSP), you will need a USB cable designed for data connection. Many third party cables will work just fine, however there are a number of low quality USB cables which will not support the communication bandwidth required to connect to the motor. An extra long USB cable, or a cable primarily used for charging devices may not have the correct wire gauge or shielding to support real-time communication.

Given, that you have tried 5 cables already, there also may be an issue with your computer. While you are waiting for the cable from Teknic to arrive, I would recommend trying the following:
  • Open up device manager on your computer.
  • When you connect the motor, you should see a device appear.
  • If the device shows as an unknown device, or it shows up as a Teknic ClearPath System with a yellow warning triangle, then there was an issue with the USB driver during the MSP installation. I would recommend uninstalling and re-downloading the installer from Teknic's website. Sometimes antivirus software can interfere with the download and installation and block the USB driver from being installed. If the problem persists, you will have to manually point your computer to the driver files.
  • If no device appears when connecting the USB cable, then there is a hardware issue where the USB hub inside your computer is not detecting any connection. This could be caused by a cable issue, power settings in your computer, or damage to the USB port on the computer itself. Restart your computer and verify that the port you are trying to use is working with another USB device (like a mouse or USB thumb-drive).

If you are still experiencing issues after trying these steps, please let me know by sending an email to support@teknic.com and I can walk you through some more advanced troubleshooting steps.

I look forward to seeing your progress on the rest of this build. :)

Brendan
 

Cooter Brown

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Hi Cooter,

Thank you for sharing your build so far! I wanted to chime in on the USB cable issues you seem to be having.

I look forward to seeing your progress on the rest of this build. :)

Brendan
I have the USB cable from Teknic, all of my hardware is working properly and I have the Clearpath servos accepting commands from the Masso Controller....... I'm workng on the servo Axis mounts right now....... I will be making them from 1/4" steel square tube and plate..... I need to make an aluminum dummy servo next so I can Tig the mounts without causing damage to the servos....

Thank you for the interest in my project.
 
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Cooter Brown

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This is going to be the Servo side of the mounts....... I need 3, so I'm tack welding 3 pieces together be before I start the machine work...... I like to model my parts like this, print it out 1:1 and glue it right to the work piece..... My holes always line up this way....
clearpath mount.JPG
NEMA 34
clearpath mount d.JPG
 
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Karl_T

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Thanks for sharing this and doing this build thread.

I was not aware of this controller. I see it has a ton of I/O compared to nearly all other hobby CNC offers out there. I'll be extremely interested to see what all you can hook up using this I/O
 

Cooter Brown

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Thanks for sharing this and doing this build thread.

I was not aware of this controller. I see it has a ton of I/O compared to nearly all other hobby CNC offers out there. I'll be extremely interested to see what all you can hook up using this I/O

Thank you for being so interested in my project.....
 

Cooter Brown

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Now its time to make the Bridgeport's end of the servo mounts.... This is what I've come up with.... It's time for some 4-jaw work...... It might get an aluminum or bronze (depending on my current floor scraps) insert in the middle to press against the ball screw bearing race....
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I'm just going to weld a piece of square tubing in the middle of these 2 plates with a hole milled in the bottom for working on the 1/2" shaft couplings that I will be making next.
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Cooter Brown

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The old cast aluminum ones are broken as usual..... Someone tightened it down till it went Click! and then back a quarter turn... 20180706_223158.jpeg 20180706_223206.jpeg
 
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Cooter Brown

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The center soft insert will be made from this 863 Bronze I have leftover, this is my favorite bronze alloy its very tough stuff. Yes I realize its way overkill. 863 bronze cuts like steel, crazy chips for a bronze alloy very easy cleanup...
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Cooter Brown

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I just finished the Bridgeport ends of the servo mounts..... Time to cut some square tubing and do some tig welding.....
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I said I was going to use 863 Bronze for the insert but 863 Bronze is no fun to work with, I bought a piece 6061 DOM tubing for cheap....
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Cooter Brown

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Here is the aluminum disc I cut to match the servo dimensions that I will be using for fit up while TIG welding the servo mounts, so I don't accidentally ground through my $400 servos.....

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Just because I have Teknic watching....... JK :cool:
 
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Cooter Brown

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1/2" to 5/8" shaft coupler with an 1/8" keyway on both ends....... 12L14 pressed into 6160 DOM tubing.......
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Just needs set screws now.....
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I just finished TIG welding the 1st servo mount....... Now I have to cut a hole in one side of the tube so I can get a hex wrench in there....
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Cooter Brown

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I just folded and TIG welded a stainless steel box today for the CNC controller, VFD and power supplies..... The stainless steel was free!:cool:
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I have to make some extra parts to get the Z axis working..... Unless one of you guys can explain how the right end of this piece comes apart.....
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Cooter Brown

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End piece is threaded on. It will actually thread off over the top of the key that is in there.
It's a massive shaft for the job it does. I made one from 5/8 stressproof when I installed a power knee lift that is all internal to the knee.
Thank you for the response.... You really saved me alot of work.... I appreciate the picture as well.... I have it all apart, I'm welding the z axis servo mount now....
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Cooter Brown

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Cooter Brown

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Sadly this setup for the Z axis won't work the servo doesn't have enough torque so I just ordered a 5:1 planetary gearhead for the servo..... Damn it....
The servo has enough torque to go down but the servo faults out when I try going up....

Wittenstein-Alpha LP070S MF1:5 Gear Reducer

Its not going to just fit, I will need to make a few parts.....
 
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BGHansen

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Seems like most 3-axis CNC set ups use the quill instead of the knee for the Z-axis. Must be because of the higher loads required to move the table. You're going to have a great set up with over 12" of Z travel where the quill only gets you 5".

Bruce
 

Cooter Brown

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