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Build Thread Arrma Talion EXB ONYX

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332_RC

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RC Driving Style
  1. Bashing
  2. Crawling
  3. Scale Builder
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This is my Arrma Talion EXB ONYX build thread. Started with a bare Arrma Talion EXB chassis, new. Built up with as many EXB parts as I could.
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From there, I mounted Treal Aluminum bulkheads & the steering posts, center motor mount & center diff.
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Front
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Center diff mounts
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Front steering complete with aluminum bellcrank & quad flanged bearings on the ADU 7075 ackerman bar.
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Front complete with Ram Jam 4140 diff outdrives & 70k fluid, aluminum front hinge pin holders- all 3.
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Same on the rear- 40k fluid - aluminum rear hinge pin holders.
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Motor mount & 50t spur- 500k fluid
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Driveshafts in & front aluminum chassis brace.

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Next- Arrma V6 front & rear hubs.
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Arms mounted- EXB shock posts front and rear.

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Just Bash It solid aluminum servo mount & Power HD GTS-5 50KG servo
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Teflon washers for the upper A arms, camber spacers.

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Front tower mounted- EXB shock posts.

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Front TPU bumper spring
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Dual aluminum rear chassis braces

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EXB camber links & rod ends

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Next-

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Scorched RC titanium rear skid

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Towers mounted
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Hubs shimmed & hexes done.

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New V6 front hubs

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Bigger inner bearings F & R

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Fuze 160a ESC mounted on an aluminum tray.

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SR315 receiver in.

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Wires routed.

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Front EXB turnbuckles & rod ends. These V6 front hubs have a double shear steering knuckle.
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Camber shim installed. PEEK washers.

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Custom servo steering link made.

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Installed. 51mm long. Two aluminum M4 rod ends & a single M4 threaded center & a delrin center tube to complete-
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Sits level----

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Next--- Built of the Treal Aluminum bulkheads. Arrma aluminum cases & Mugen diff shims. 70/500/40 fluids. They set up really great. Ram Jam 4140 diff cups throughout.

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Next--- almost there. Dual fans installed. All the wires internally routed. Shocks mounted. 20t pinion & a Hobbystar 4282 1780kv motor.

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Wires tucked in.

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Routed under the Power HD GTS-5 50KG servo. Perfect.

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Used 6s shock pistons here for the washers for the dual rear aluminum chassis braces. Very rigid.

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I want to add: I had a TP4040 1950KV motor for this rig. I had it mocked up, motor leads soldered on, & bench tested. I pulled it in favor of the Hobbystar 4282 1780kv motor. It's a little lighter, & should run cooler. I used 63/37 Kester 0.031" wire & a mini torch to solder the 6" motor leads in. All fixed up with shrink wrap. I took this TP4050 1950KV motor & put it in my Limitless. I think that will suit that build much better. Here's the mockup before I pulled it.

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Detailed pics of the quad flanged bearings in the ackerman bar. Took a little figuring out with a few small shims. 12.9 ground shoulder screws. Zero lash or play. Super smooth. No drag. No up & down movement. The aluminum bellcrank has ball bearings & has been shimmed as well for zero lash or play. Solid.

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Detal pics of the new Arrma V6 front & rear hubs- a few they are next to the V5 hubs- showing the difference. The V6 front knuckles don't use a pillow ball insert. Instead, the caps just bolt down. Drop in the pillow ball, install cap. Tighten the screws. No adjustment. They are nice & snug, but still smooth. No pillow ball aluminum retainers to back out.

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Next to a V5 on left.

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Shows the double shear steering mount.
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Side by side V6 & V5
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Rears. V6

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Requires no H arm shims. Full width.
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Big bearings.

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