Machsupport Forum
General CNC Chat => Show"N"Tell ( What you have made with your CNC machine.) => Topic started by: Monty on January 03, 2010, 06:13:34 PM
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Here are some parts that I made with my mill. They are engine mounts for a 990cc engine. This is a work in progress. The bottom mount is made from 6061 T6 angle. The top mount is made from 7075 plate. The top mount replaces the crankcase breather so I put a PCV valve in it.
I used Alibre to model the parts and Alibre CAM to write the toolpaths. The first top mount I made was just a simple plate, and I wasn't satisfied with the weight. It was also a little too close to the top of the engine casting. I know there is gratuitous pocketing here......but hey what good is all this cad and CNC stuff if you don't use it.
It was really nice to just go in and tweak the part a little bit and update the tool paths and add the pockets.
I will have to make some parts with the lathe to finish these. I'll post the parts as I make them and put the project together.
Here is a pic of the first top mount.
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Here is the new mount along with the bottom mount
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Nice work!
Vince
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looks awesome, very professional
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That looks pretty slick. Whatcha' makin, a frozen drink blender?
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Looks good Monty! Are you going to plate them?
Daniel
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Daniel,
No plans to plate them. I may have them anodized. Most likely just satin finish and a clear coat.
Sam,
There will eventually be a propeller on the front of it.
Here is what the engine looks like.
You'll just have to wait to see the rest because I haven't built it yet.
Monty
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OOOOoooooo...a propeller eh ?
Now you're talkin' !
Plane or boat ? ? ?
Pro looking job so far Monty.
EAA by chance ?
Russ
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Russ,
Former EAA. Why is a bit involved and off topic and you probably already know why.
This is going to go in something about the same as a Starlite. Or if I find a decent airframe....a Starlite.
Right now I'm just getting the firewall forward worked out. The engine in the pics is about the same wt as a 503 rotax.
It should produce about 45 hp, 35 continuous at MSL. Also burns about half the fuel a Rotax 440 does.
Monty
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Nice Work Monty
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I think I finally killed the last hardware bug in the lathe. Made some more parts for the engine mounts today. Watching the machine cut the first part was a mixture of panic and exhilaration. Of course I had triple and quadruple checked everything, but I still expect disaster at any moment. I haven't got the grooving routine dialed in yet. I don't like the finish it leaves. It would be better without the finish pass, but I can't eliminate it from the wizard. The parts are good enough to use and I'm just happy to have a stable machine.
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Here is the part being made. Feel free to critique my program. It cuts a lot of air because I set it up for raw 2 in stock with a runout allowance. I had already cleaned this stock up checking tool offsets.
http://www.youtube.com/watch?v=9B2d5HABSJk
Monty
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Nice to see the lathe up and running! The part looks great.
JH
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JH,
Thanks. It's nice to finally get a chance to do something besides work on the machine. There is a lot more involved in that part than just the part ;).
Now I have to learn to use the darn thing.
Then I've got to start thinking about the 5 axis sitting in the corner feeling lonely.
Looking forward to seeing your lathe up and running.
Monty
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Ok.... 5 Axis? Please tell us more!
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Finally got a chance to finish all the bushing seats today.
JH-Well I've been meaning to start a thread about the 5 axis, but I don't know when I'm going to start on it. I still need to buy the axis motors and drives. I have not even figured out exactly what hardware I'm going to use for machine interface yet. I need 6 axis output. The spindle drive is another axis.
Anyway, here is a teaser. >:D
Monty
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Monty,
Thanks for the teaser! You have your work cut out for sure. Looks like it will be fun once you get started.
Thanks,
JH
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very pimp, nice work :D