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My homemade torque converter
« on: October 03, 2013, 12:03:51 PM »
Hi,
I'd like to share my first ever 3D CNC work, and at the same time first aluminum work on the CNC.
I have cut lots of plastic and brass plate 1 and 2mm thick, but now I got to a more serious part of my model building project: A gearbox!

My CNC: (Don't let the German signs fool you, I am in Denmark :-) )


I drew a sketch in Inventor, exported that as a 2010 DXF file. That file went into a program called Cut2D, where I defined my tool paths incl depth, passes, speeds and what-not.
Those tool path files then went into my Mach3 one at the time, and I could start cutting!


The result: Two halves for the gear box housing, where I will put 6 ball bearings and 3 gears in, in a little while.


The CNC machine, Inventor 2013, Cut2D and not least Mach3 has really opened up a world of options, and I can't wait to make more parts!

For those interested: I am building a remote controlled, working 1:14 scale model of a mobile crane (Liebherr LTM1500-8.1)
The entire build is shown at my web: www.robse.dk

Sincerely, Robert
Re: My homemade torque converter
« Reply #1 on: October 03, 2013, 07:57:28 PM »
What RPM spindle speed did you use? Also, were the cutters made of high speed steel, or carbide?
Re: My homemade torque converter
« Reply #2 on: October 04, 2013, 02:12:37 AM »
Hi,
RPM= 10.000
Feed: 1,6mm/sec.
"Z" depth pr pass: 0,6mm
Coolant: Alcohol (For the CNC..., I had coffee)
Cutter: 4mm, 2 flutes, carbide, made for aluminum

I might be able to go harder into the metal, but the CNC machine is not made for this, so I am worried about the mechanical deflection, if I push it too much.
« Last Edit: October 04, 2013, 02:15:16 AM by Robse »

Offline Tweakie.CNC

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Re: My homemade torque converter
« Reply #3 on: October 04, 2013, 11:22:50 AM »
Nice work Robert.  ;)

Tweakie.
Success consists of going from failure to failure without loss of enthusiasm.  Winston Churchill.

Offline Hood

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Re: My homemade torque converter
« Reply #4 on: October 08, 2013, 06:56:18 AM »
That is some nice work you do on these models, very impressive.

Hood
Re: My homemade torque converter
« Reply #5 on: October 09, 2013, 08:21:24 AM »
Thanks!
I try to pay attantion to details, and have great fun doing it. :-)