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-   -   Need help making a motor mount.. (https://www.rc-monster.com/forum/showthread.php?t=18193)

What's_nitro? 01.21.2009 10:05 PM

Quote:

Originally Posted by BrianG (Post 254464)
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...

Quote:

Originally Posted by brushlessboy16 (Post 254477)
I havent had a problem drilling and tapping 1/8th" aluminum

What size screws are you using? 2-56? :rofl: Edgewise would be into the 1/8 thick side..... But yeah with 3/16 that could be a problem. 4mm screws would be too big, but if you used 4, 3mm screws in the bottom (instead of 2, 4mm screws) that would do it. Or try and get 1/4 thick material and use 4, 4mm screws! :yes:

brushlessboy16 01.21.2009 10:10 PM

Quote:

Originally Posted by What's_nitro? (Post 254488)
What size screws are you using? 2-56? :rofl: Edgewise would be into the 1/8 thick side..... But yeah with 3/16 that could be a problem. 4mm screws would be too big, but if you used 4, 3mm screws in the bottom (instead of 2, 4mm screws) that would do it. Or try and get 1/4 thick material and use 4, 4mm screws! :yes:

Ohhh i didnt know he ment edgewise, I can drill and tap m4 in 1/4in easily, i dont think i need to tap the edge of this.:whistle:

What's_nitro? 01.21.2009 10:28 PM

Quote:

Originally Posted by brushlessboy16 (Post 254492)
i dont think i need to tap the edge of this.:whistle:

3/16" 6061 is pretty tough. You might not have to... :great:

brushlessboy16 01.21.2009 10:53 PM

Quote:

Originally Posted by What's_nitro? (Post 254500)
3/16" 6061 is pretty tough. You might not have to... :great:

I never said i was going to :na:

BrianG 01.21.2009 11:13 PM

Quote:

Originally Posted by brushlessboy16 (Post 254492)
Ohhh i didnt know he ment edgewise, I can drill and tap m4 in 1/4in easily, i dont think i need to tap the edge of this.:whistle:

I assumed that since you said you weren't going to bend it that you were going to use the same scheme that Mike uses for his mounts (4mm screws from underneath screwed in edge-wise to the mount). If so, 3/16" thick is too thin. That leaves a "wall" of less than 0.5mm when using 4mm screws. And I wouldn't use anything smaller than 4mm considering the stress they are under.

If you're not doing this, I would think the only other option is to make a 90* bend and use a screw/nut to hold it in place.

brushlessboy16 01.22.2009 08:13 AM

Quote:

Originally Posted by BrianG (Post 254520)
I assumed that since you said you weren't going to bend it that you were going to use the same scheme that Mike uses for his mounts (4mm screws from underneath screwed in edge-wise to the mount). If so, 3/16" thick is too thin. That leaves a "wall" of less than 0.5mm when using 4mm screws. And I wouldn't use anything smaller than 4mm considering the stress they are under.

If you're not doing this, I would think the only other option is to make a 90* bend and use a screw/nut to hold it in place.

why not just bolted to the center diff mount?

BrianG 01.22.2009 10:45 AM

Not enough support IMO. Personally, bolting to the CD mount would be in addition to bolting it to the chassis. The CD mount just helps reduce flex, but the chassis is much stronger.

lincpimp 01.22.2009 10:54 AM

Quote:

Originally Posted by BrianG (Post 254613)
Not enough support IMO. Personally, bolting to the CD mount would be in addition to bolting it to the chassis. The CD mount just helps reduce flex, but the chassis is much stronger.

+1... A decent piece of thickish al L bracket is your bet.

brushlessboy16 01.22.2009 11:34 AM

hmmm, I have some little 1x1 anlge i think, bolt the angle to the 3/16's 6061?

What's_nitro? 01.22.2009 11:35 PM

Quote:

Originally Posted by brushlessboy16 (Post 254510)
I never said i was going to :na:

I just thought I should reinforce your thinking... :na: :na: :mdr:

brushlessboy16 01.22.2009 11:37 PM

Quote:

Originally Posted by What's_nitro? (Post 254782)
I just thought I should reinforce your thinking... :na: :na: :mdr:

Just wanted to let you know that you doing a great job..:lol:

What's_nitro? 01.22.2009 11:40 PM

Quote:

Originally Posted by brushlessboy16 (Post 254783)
Just wanted to let you know that you doing a great job..:lol:

I just though I should say THANKS!! :yipi:


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