Need help making a motor mount..

[brushlessboy16]

Ok, will 1/8th inch aluminum flat stock hold up to a 1515 1y on 4s...



might just make it and be done, then double the thickness if I need to.

I would go straight to doubling up the 1/8". This will make sure it will have minimal flex.

[brushlessboy16]

Originally Posted by B4maz

I would go straight to doubling up the 1/8". This will make sure it will have minimal flex.

Hmm, Ill see what I can do I havent had a problem with torsional flex on flat stock before.. hopefully i can have slots etc milled out.

[What's_nitro?]

Hey, just bend yourself one of these. (I made you a sweet technical drawing)

[lincpimp]

Originally Posted by What's_nitro?

Hey, just bend yourself one of these. (I made you a sweet technical drawing)

Quite gangster, I like it... Just use some decent thinckness steel plate, like 1/16" and use a long turnbuckle to brace the top forward to the sevo mount. About the best DIY solution yet that I have seen!

[What's_nitro?]

He says he has plenty of the 1/8 aluminum, which I think would be less flexible than 1/16 steel. Steel would be easier to bend, though. ...And thanks! That took me all of 5 min. to sketch in MS Paint!

[BrianG]

Why not simply stick with the L bracket idea, but also secure it to the CD mount? Something like this:

Edit Apparently my site isn't working right now so I attached the image instead...

This was on a CRT.5 using 3mm thick 6061-T6 aluminum, but you could use thicker material (I would go with 4mm 6061-T6 or 7075-T6).

[lincpimp]

Good idea Brian, my gtp bracket for the kb 45 motor looks very similar. I trimmed it a bit as I used 2x3 6061 angle. Works fine for me. Attaching it to the rear center diff bulkhead does help with rigidity.

[brushlessboy16]

as it stands, i have just the 1/8th in aluminum... but one of our Robotics engineers(im at robotics now) just walked in with a huge sheets of 3/16 6061 aluminum sheets... see if i can snag a peice...

[What's_nitro?]

You wont be able to bend that stuff... But maybe you won't need to. It might be strong enough the way it is.

[brushlessboy16]

Originally Posted by What's_nitro?

You wont be able to bend that stuff... But maybe you won't need to. It might be strong enough the way it is.

would be nice.. Gonna have one of our engineers make it for me tommorow

[BrianG]

I would suggest heating it quite a bit before bending it. 3/16" is almost 5mm thick. Heating it will make it easier to bend and help reduce stress cracks...

[brushlessboy16]

Originally Posted by BrianG

I would suggest heating it quite a bit before bending it. 3/16" is almost 5mm thick. Heating it will make it easier to bend and help reduce stress cracks...

I dont think i will need to bend 3/16' 6061, should be plenty strong :)

[BrianG]

Originally Posted by brushlessboy16

I dont think i will need to bend 3/16' 6061, should be plenty strong :)

3/16' ??? Wow, that's 2.25 inches thick! That should definitely be strong enough! A tad on the heavy side though.

lol, I know what you meant. If you're gonna drill and tap threads edge-wise into material, I would go with at least ~6mm thick (~1/4") because you'll want to use 4mm screws I would imagine...

[brushlessboy16]

Originally Posted by BrianG

3/16' ??? Wow, that's 2.25 inches thick! That should definitely be strong enough! A tad on the heavy side though.

lol, I know what you meant. If you're gonna drill and tap threads edge-wise into material, I would go with at least ~6mm thick (~1/4") because you'll want to use 4mm screws I would imagine...

:), I havent had a problem drilling and tapping 1/8th" aluminum, thats what i did to my current mount and had no problems.. hope this turns out well