PM727M CNC Keyway Broaching!

In this video I show you how I Broached my motor pulley Key Way with a home made broaching tool and the PM 727M I have tried to be as detailed as possible to the point of being informative but not boring. I will try to keep the videos around the 15 minute mark. Please comment and let me know if the content is spot on or you would like more information and details. I will do a complete overview video to conclude the wiring in which I will go thru how the system operates. Thanks for watching , please subscribe, thumbs up if you like the video, and most importantly , Be Safe!

Precision Matthews PM-727M $1849 Shipped

Disclaimer. I am not a professional. My videos are intended to
document my progress . I express no warranty as to the accuracy reliability or safety of the information provided here. By using any of the information provided in this video you acknowledge that I am not responsible or liable for injury or damage to property. Electricity is Dangerous proceed with caution follow all local regulations in your area.

[SOCOLVN]

Damn !!! After all the work getting the parts for my PM. Lost every thing in the Sonoma County fires . Guess I’ll have to live my life vicariously through you now.

[charltonwang]

Brilliant. You never cease to impress, Sam.

[grahamdodson]

Well done and great solution for broaching!

[jeffschilling]

Great stuff Sam, I recently did a blind broach manually (using the lathe) and regretting that I didn't invest the time to use my CNC G0704. Awesome results.

[russtuff]

Awesome! I've always wanted to try this. You achieved a great result.

[JAMESHOPKINSIBXCNC]

Nice job again Sam, when your spindle head weights over 100 pounds taking a .001" cut like that with a head start there is not much load on the ball screw. Smaller machines with smaller ball screw might be challenged but planning ahead like you did by putting heavier 20mm ball screws in the build, not to mention the double ball nuts, it makes more things possible. Great job!!!

[asgharrezaei]

Perfect, my suggestion is to put 2 set screw side to keep Pauly secure .

[williamhardin]

That's awesome. I do think you should have taken the time to put a square hole in the shaft. It worked great for the aluminum pulley but if you use for steel I think the corners of your tool will start cutting into the hole causing it to loosen itself while broaching the harder materials. Your pulley came out great so maybe I'm just being too critical (wish I had thought of that).

[majic-vf]

Sam, how did you lock your spindle rotation during broaching? I've wanted to try this for a while but don't have a solution to lock the spindle rotation.

[TimothyHall]

All done with the belt drive conversion of the PM-727M?

[MsRob]

Hi what software are you running ? Rob uk love your servos to much money here or would get the hole lot for my machine