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[Penguin]

New Pictures at the bottom or page 2

I bought some billiard balls a couple weeks back because I was kicking myself for not picking up another set I'd seen before. I always loved the idea of pool ball pump handles and decided to learn CAD to actually visualize what I had in my head. So after about a week of learning and trying (entirely by myself since I don't want to spend money on course material) I came up with this:




Note nothing is threaded because CADopia can't do a helix.

This will be done sometime during the next school year during Metal Fab 12 and will be done entirely by CNC except for the pump handle. We have both a capable tabletop CNC lathe and mill. This will actually be my first experience with pump in any real sense as the closest I have to a real pump is a Splatmaster.
Lemmie know what you guys think
~Penguin

[noelydeeznutz]

looks like a ccm kit, with a pool ball

[sable]

nice! looks great.

you planing on doing a sell run?

[craltal]

um, where's the hole in the ball for the pump rod?

[Penguin]

I'll take that as a compliment, I've never seen or held a CCM kit in person. I just wanted a design that would do everything it needed to while really keeping it simple.

If I had my own shop with my own tools sure I'd consider doing a run of kits but unfortunately I couldn't monopolize the machines like that. I have a total of 5 solids and the stripes are all yellowed, I could do a run of maybe three kits but it would depend entirely on how the original performs. I would never put my name on anything that I wasn't entirely happy with.
The idea that people would want something that I've designed and built really makes the time spent on the project worth it. I have maybe 20 hours into about 3 renditions of the kit and have gotten drawing whats in the pictures to about 15 minutes.

Keep the comments coming
~Penguin

Edit:
This kit was originally designed to curve under the barrel and it included the hole for the pump arm. I redesigned it to an under the barrel style. I guess I forgot to include that hole when I redesigned to kit to the under the barrel. Good eye.

[Altec]

May I suggest a slightly easier way to go? Instead of dual guide rods, use the barrel as a guide rod. Thats what I did, and it works very well.

http://i13.photobucket.com/albums/a2...r/100_3056.jpg

http://i13.photobucket.com/albums/a2...r/100_3057.jpg

http://i13.photobucket.com/albums/a2...r/100_3059.jpg

[Penguin]

My original kit was a barrel groove and dual pump guides, I have enough pool balls that I can try a few different styles of kit. Right now I'm trying to find my dimension sheet to put the pump arm into the ball, it seems to have disappeared.
~Penguin

Edit:
My only problem with the groove in the ball is I don't know if a smaller table mill would be capable of holding something like this steady. We have a large old mill but we lack ball end tooling for it. I have time to think about it anyways - it's summer now.

[Altec]

When I did mine I just chucked it in a vice, and plunge cut it. Wasn't the right way, I know, but it worked.

[Penguin]

What size did you use? My shop teacher might be able to swing it with fair notice.
~Penguin
Edit:
If you don't mind my asking what measurements did you use for the pump arm? I seem to be having trouble with the pump arm not having full billiard ball around it, I probably have to rework the kit a little bit

[craltal]

You're welcome. I just didn't want you to get too far and have a big D'OH! moment..