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Thanks Brian. I'll get into that real soon, maybe tonight

I didn't like how the Associated washers that go under the steering posts are oversized on the inside dia. so I made some from black delrin.



Transverse battery cups and front bumper (both from Shapeways) dyed black.



I've followed Brian's tip on getting the CVA's to work. I think I got it but want to get the rest of the weight (motor,battery,etc.) in the tub to see how the rear suspension settles. I may need to add/subtract some of the spacers that I put in the shocks. I'll be sure to come back and post what I have in them.

Not much more to post today, got a lot of crap to do.

Back in Black!

I busted out the Dremel this morning and made a battery strap from black G10 (1/16" thick). It turned out ok, not Factory Works quality.

I've installed a motor and have some info to share...

At first, I used a 29T pinion with the 81T spur. The motor housing was pressed up against the screw boss on the battery cup... not digging that. I went down to a 27T (the only smaller one I have) and it clear by a paper width. I'm not sure how a 27T is going to work, have to see in the end.

If anyone has some tips on gearing to share on the B1M, please post.

Smaller spur gear and pinion? You should be able to keep the same ratio by going smaller on both... maybe a 70-something spur?

yeah just cross multiply and divide to get the same ratio...so say your goal is 29/81...and you want to run a 72t...
Multiply 29 x 72, and divide by 81...that gives you 25.8, so a 26t would get you close

Cool, thanks guys. I'm going to get a 75T.

That should give you quite a bit more clearance

Finishing up (I think) on the CVA's. I used two 1/8" AE shock down stops, the black ones, and have good engagement with the tranny drives.





I should get the new spur gear Monday/Tuesday via Amazon Prime... what's not to like about that

I hadn't thought about buying RC car parts on Amazon... I might as well, I buy everything else on there

Can I suggest you ditch the stock AE ballcups? They will be the weak link of your suspension... RPM all the way

Yes, RPM cups are on the way, white ones so I can dye them red!

mk-Zero wrote: ↑Fri Nov 24, 2017 2:31 pm I hadn't thought about buying RC car parts on Amazon... I might as well, I buy everything else on there

I was on Amazon, looking for a new rain jacket and figured I'd see if I could get a 75T spur... there was one!

I couldn't get my head around that blue spacer on the inside and having nothing on the outside so...



The blue spacer measured 0.076" thick (with my tool) so I made an aluminum spacer 0.045" thick with a 0.020" chamfer on the inside face. Next was to add three shims to the inside and one between my spacer and the bearing. I still have good engagement with the outdrives. Now I feel better

I'm late to the party, but I run small spur gears in my 17.5 RC10 racers - 69/72/75. I had found some odd 73s at one point and have that in the car currently (old style slipper), geared 29/73. Once you get the smaller spur in there, you should be close to where you need to be. FYI - I've ran as high as 34/69 on very large outdoor tracks.

I appreciate all the advice. I had been going by what's in the Worlds re release manual for gearing. When I get a chance ($$$) I will get a wider selection of pinion/spur gears.