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Author Topic: Engine Mounts  (Read 9138 times)

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Offline Monty

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Engine Mounts
« on: January 03, 2010, 06:13:34 PM »
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.

Offline Monty

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Re: Engine Mounts
« Reply #1 on: January 03, 2010, 06:15:30 PM »
Here is the new mount along with the bottom mount

Offline N4NV

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Re: Engine Mounts
« Reply #2 on: January 03, 2010, 08:25:09 PM »
Nice work!
Vince

Offline BarryB

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Re: Engine Mounts
« Reply #3 on: January 03, 2010, 09:04:53 PM »
looks awesome, very professional

Offline Sam

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Re: Engine Mounts
« Reply #4 on: January 04, 2010, 01:43:30 AM »
That looks pretty slick. Whatcha' makin, a frozen drink blender?
"CONFIDENCE: it's the feeling you experience before you fully understand the situation."

Offline Dan13

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Re: Engine Mounts
« Reply #5 on: January 04, 2010, 08:47:28 AM »
Looks good Monty! Are you going to plate them?

Daniel

Offline Monty

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Re: Engine Mounts
« Reply #6 on: January 04, 2010, 01:38:04 PM »
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

Re: Engine Mounts
« Reply #7 on: January 04, 2010, 03:27:34 PM »
OOOOoooooo...a propeller eh ?
Now you're talkin' !
Plane or boat ? ? ?
Pro looking job so far Monty.
EAA by chance ?
Russ

Offline Monty

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Re: Engine Mounts
« Reply #8 on: January 04, 2010, 04:27:46 PM »
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
Re: Engine Mounts
« Reply #9 on: January 08, 2010, 02:48:39 PM »
Nice Work Monty