Crawl Spec Retrac - Bully Style

[TURBOFEST]

Very cool Steven!!

[ittybitty]

Glad to see you working on this rig again

[SVEN]

Originally Posted by TURBOFEST

Very cool Steven!!

Thanks!

Originally Posted by ittybitty

Glad to see you working on this rig again 8)

It will never be done. :)



Little bit of progress. This is a knuckle for the rear. The fronts will be slightly different to support a weight holder.

[flashdjse]

Originally Posted by SVEN

Did some updates for 2013.

I cut this chassis before nationals last year, but didn't have enough time to install it until last week. The new chassis is carbon fiber and allows for axle mounted shocks. It still needs some tuning and clean up the wiring/battery location, but it seems to feel more predictable than the previous chassis that had the shocks mounted to the lower links.

I put Axial bent rods on top and bottom of the shocks to keep them from binding. I had never done the 'rod end shock cap mod' to my shocks before and it was so simple, I can't believe I haven't tried it yet. Only took about 20 minutes to complete the set of 4.

Are they glued or do the rings hold like a bead lock against the standoffs
Your wheels are sick!!!!

[SVEN]

Some updates while prepping for Nationals...

First up is some new (much lighter) wheels and tires. Picked the Rovers up from Krawlfreak and designed some wheels for the standard 40 series size.

Wheel vendors might find these interesting, as the complete set of 4 wheels was cut from a sheet of 3" x 12" x 1/8" and a sheet of 12" x 12" x 1/16". So about $75 worth of Carbon Fiber for a set of Super wheels .

Also picked up a Dlux servo strengthener. Took some adjusting to fit in the Bully, but finally got it to work. Just have to cut down the large gear to get it out of the way of the shock. I had to redesign and cut a new set of servo mounts to push the strengthener plate away from the upper link mount. Moved it over about an 1/8". Then had to countersink the shock mounting screw hole since the button head was in the way of the servo.

Photos.....

[Krawler Kev]

Those wheels are beautiful Sven.

And light as heck too.

[filotr14lsdude]

Love the wheels

Great work.

[racer_zh]

Nice Work on the Wheels Sven....

Working on my Wheels right now.... looks like i can get it down to 34g with 350 VP hub....

[JeremyH]

Very cool Sven! Are the rings multiple pieces? It looks like they are split (about 2 o'clock in the first pic)...

[SVEN]

Originally Posted by Krawler Kev

Those wheels are beautiful Sven.

And light as heck too.

Thanks

Originally Posted by filotr14lsdude

Love the wheels

Great work.

Thanks

Originally Posted by racer_zh

Nice Work on the Wheels Sven....

Working on my Wheels right now.... looks like i can get it down to 34g with 350 VP hub....

Thanks Manu. Yeah, it shouldn't be too hard. Aluminum fasteners would help take some weight off as well.

Originally Posted by JeremyH

Very cool Sven! Are the rings multiple pieces? It looks like they are split (about 2 o'clock in the first pic)...

Thanks Jeremy. Yes, each ring is in two pieces. They are put together so that each side of the wheel the ring pieces are offset from each other (not on the same standoffs). The glue will also keep them in place.

[Red Rockcrawler]

Originally Posted by SVEN

Wheel vendors might find these interesting, as the complete set of 4 wheels was cut from a sheet of 3" x 12" x 1/8" and a sheet of 12" x 12" x 1/16". So about $75 worth of Carbon Fiber for a set of Super wheels .

Do you have any plans to make more?

[SVEN]

Originally Posted by Red Rockcrawler

Do you have any plans to make more?

Maybe. I will see how these hold up first though.

[Red Rockcrawler]

Originally Posted by SVEN

Maybe. I will see how these hold up first though.

Cool let me know. Did you get your Back pack yet?

[Hittman]

Wow.. Those wheels are just awesome!

[SVEN]

Originally Posted by Red Rockcrawler

Cool let me know. Did you get your Back pack yet?

Will do

Not yet . Kinda blew my r/c budget getting ready for nationals. It is the first thing in my wish list though.

Originally Posted by Hittman

Wow.. Those wheels are just awesome!

Thanks

[ROWDY RACING]

How'd the new wheels hold up at nats?

[SVEN]

Originally Posted by ROWDY RACING

How'd the new wheels hold up at nats?

3 of the 8 outer sections separated, but it really didn't affect the performance since they were still glued to the tires.

I will not be doing any more 2 piece outer rings though. The center section with the hexes held up great and I will likely make some more wheels using that design.

[ROWDY RACING]

Originally Posted by SVEN

3 of the 8 outer sections separated, but it really didn't affect the performance since they were still glued to the tires.

I will not be doing any more 2 piece outer rings though. The center section with the hexes held up great and I will likely make some more wheels using that design.

Sounds good, you get the steering issue worked out?

[Jake Ewing]

what rims are those, or are they custom?

[ittybitty]

Originally Posted by Jake Ewing

what rims are those, or are they custom?

The answer you're looking for was only a few posts above yours...post #125

Crawl Spec Retrac - Bully Style