capra borken axles

[corefire]

after two breaks on my front and rear axle, now a break again, the beeftubes had no effect. same position and picture than without :-(

thre break was at 20°C sunshine and under low throttle while steering around a corner

 

[ScottyPotty]

What happens when they break? Hard falls? Wheel get caught?

 

[TheLetterJ]

Looks like your steering stops are ground off? I trimmed mine too, but stopped before the joint could bind (right around 55°) If the u-joint is allowed to bind and the knuckle still has room to turn, something WILL break. In a 1:1 that would have resulted in a broken u-joint/axle shaft, but the weak link in your scenario is the axle housing.

 

[JatoTheRipper]

Capra axles don't just break. What, exactly, happened in both cases?

Adding all that brass out at the wheel doesn't help at all.

I'd email Beef Tubes and show them this. It appears that their Beef Tubes are useless against breakage in these axles. They're good for adding weight and only that.

 

[HumboldtEF]

Looks like your steering stops are ground off? I trimmed mine too, but stopped before the joint could bind (right around 55°) If the u-joint is allowed to bind and the knuckle still has room to turn, something WILL break. In a 1:1 that would have resulted in a broken u-joint/axle shaft, but the weak link in your scenario is the axle housing.

Yep re-check your steering trim, you may be steering farther than the axle shaft will allow.

 

[Robbob]

Capra axles don't just break. What, exactly, happened in both cases?

Adding all that brass out at the wheel doesn't help at all.

I'd email Beef Tubes and show them this. It appears that their Beef Tubes are useless against breakage in these axles. They're good for adding weight and only that.

Are they pushing that the tubes will help prevent breaking? Everything breaks lol.

I broke the lower half of the C off one side on my rig, dont know how or when. Where mine broke though I think they could have molded a little more us a radius/gusset into the plastic.

Other then that I havent had a problem with any of the axles and Im carrying a lot of weight and 2.2 wheels.

 

[JatoTheRipper]

Are they pushing that the tubes will help prevent breaking? Everything breaks lol.

I broke the lower half of the C off one side on my rig, dont know how or when. Where mine broke though I think they could have molded a little more us a radius/gusset into the plastic.

Other then that I havent had a problem with any of the axles and Im carrying a lot of weight and 2.2 wheels.

Well it's true...they may not claim it adds strength.

I've never broken a Capra axle, or any axle for that matter, but some guys do. I've seen multiple breaks on the Capra and usually by the same people. They all have brass out the ass.

 

[Robbob]

Lol .... brass makes everything better.



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[ferp420]

this looks like a redcat axle failure i was hoping axial would do better especialy with the new scx10iii being released

 

[tapped-out]

What do you expect they're plastic C-hubs.

 

[corefire]

it was just driving low speed around a corner

yes steering stops trimmed

brass was only 100gr per side

i will buy the VP capra axles to avoid the problems

in the meanwhile i switched to ssd portals

 

[corefire]

What do you expect they're plastic C-hubs.

yes. on one side i drive 1900kV on 4s with this 6lbs rigon the other side my old shortened ar60 hat 78° steering angle without no issues and the ssd portals also work without problems.

servo is also a weak 3brothers G13 on 4s

 

[corefire]

here with the lightweight capra axle and 47% overdrive. very agile and good handling

https://m.youtube.com/watch?v=e9YvHoxn8fU


and here with the SSD spare one. 52% overdrive and double weight to much for forest track, was build to climb rocks

https://m.youtube.com/watch?v=Dbc4zi2CZ7Q

 

[corefire]

here in europe we call all brass pipes for axles beeftubes. they didn't build this, it's just made own from a 6.9/5.2 brasspipe

the rear axle is breaking also on the same point when driving without.

 

[woodcox]

Nice CF. Is 6.9/5.2 the od and id of the tubing?

 

[corefire]

yes.
for front 52mm and for rear 72mm long

 

[corefire]

a little bit difficult to balance. but now good setup. until the next break

weight in is with 850mAh 4s battery

 

[LawnDartMike]

I went four months with no issues. Put a brushless high torque outrunner motor on 3s in the Capra and have broken three in the last month. The wheel hangs up for a millisecond and the axle housing twists and snaps. No brass or other weights. I'm going back to the Castle inrunner.

 

[JatoTheRipper]

That's an awesome looking truck. Please resize your photos. The maximum size allowed on this site is 1200x1200.

 

[ferp420]

i wounder if you coated the beeftubes with jb weld if it would hold up better