New gearbox and gear options

[Jeepkid]

Originally Posted by Nimyad

Pretty hard so far. I messed around on my course that I've broken several small gears and axles on for a pack and they held up fine. I also did a bunch of full throttle climbs on the granite boulder in my front yard, along with some straight up climbs for 2 packs. My motors seem to stall out before I break the gears, I need better motors though.

What turn motors are you running. Also your tire diameter. Wieght of rig. Just tryin to get an idea of how hard the plastic gears are working

[Tgreer]

Wow! Plastic front and rear on a super at probably around 6 1/2 with 8" wheels!

I'm so excited!!!!

[Nimyad]

Originally Posted by Jeepkid

What turn motors are you running. Also your tire diameter. Wieght of rig. Just tryin to get an idea of how hard the plastic gears are working

70t motor on 3s, 6.5 inch tire that's a pretty light setup (6-7 oz a tire I believe), 6lb rig. Plastic gears in the rear only.
This is the rig

[Jeepkid]

Thanks man, now we know it can handle torque from a 70t motor and 6.5 tall tires. Thanks for the info man.

[Tgreer]

Originally Posted by Nimyad

70t motor on 3s, 6.5 inch tire that's a pretty light setup (6-7 oz a tire I believe), 6lb rig. Plastic gears in the rear only.
This is the rig

well, I was off on my guess!

[GEARSCIENCE]

Originally Posted by Tgreer

well, I was off on my guess!

either way, i think hes putting more stress on those gears than we should with our 4 lb rigs... im worried about how well they'll hold up when the truck gets upside down and you have to hammer the throttle back and forth over and over till she rolls back on all fours i feel like thats when teeth might start flying off. i hope not tho

[Nimyad]

Originally Posted by GEARSCIENCE

either way, i think hes putting more stress on those gears than we should with our 4 lb rigs... im worried about how well they'll hold up when the truck gets upside down and you have to hammer the throttle back and forth over and over till she rolls back on all fours i feel like thats when teeth might start flying off. i hope not tho

I imagine that's where they'll fail as well. I only did that a couple times yesterday, so it's hard to tell yet. I'll run a couple more packs through it and inspect.

[Beest]

I tried to put my berg gears into my MT cases tonight. I followed the directions and all that but I cant seem to get it right. With both adapters and the only 2 bearings that fit em on the not motor side of the case the 3rd gear will slide back and forth in the Larger gear it sits in. Also because of this the bearing on the side of the 3rd rides against the 4th. Any ideas what i'm doing wrong? I will try to get a pic posted up.

[slowride1]

you have got your mind to rite

[Beest]

MY mind will never be right!

Photo bucket is not cooperating either.

https://mail.google.com/mail/h/1lrak...96-1&safe=1&zw

[slowride1]

that link is just like your gearbox fail

[slowride1]

u need to use the
direct image code

i think its the bottom one

[Beest]

Hey, I figured it out how to post pics!

Ideas?

[Erik D_lux]

Can you show the opposite of what you have in that pic? Put all the gears in the motor side and show that

[Beest]

The 3rd gear can walk back in forth as well.

[Nimyad]

Have you tried to put the case together yet, or just putting the gears in one side?

[Beest]

Yep. Tried that. The 3rd and the larger gear it sits in can walk back and fourth inside the case. Or if I swap bearings around its way tight when I bolt case together. I should have the mt 3rd soon, and ill try all mt with berg 4th.

[Erik D_lux]

Looks like I screwed up on my measurements.

I made some extra pieces and modified the small 3rd adapter. You will also have to modify the case a bit, nothing too serious and nothing that will make it so that you cannot switch back and forth to the MT stuff.

It also looks like you will not be able to get 100% gear engagement. You wont be lacking much, about .3 or .4mm.

I think I know everybody who bought the adapters so far. I will get the fix out on Monday. Until I hear back, I will make them so they are out of stock.

[Beest]

Right on, Erik. Thanks for taking this on man. It means alot to all of us Berg-Addicts.

[Erik D_lux]

No worries. I am glad to do my part. Big thanks to you guys who are jumping right in and being "testers".

Its an odd situation where its not my parts and I dont stand to make much if any money off of it so we all need to work together to get something working.