1:10 or 1:12 scale project wanted... - Page 21 - RC-Monster Forums

BrianG · 04.29.2007, 06:44 PM

Yes, it's one of Mike's pinions. I have a couple I am testing for him because I really think a solid, consistent mesh is the key to their longevity. Mike just asked me to post my results of this test here. I also have one on my Hyper 8, but haven't run that nearly as much since I'm saving it for race days.

And yeah, there is really no wear. The picture tells the story. I just have to stop using it because of the bore adaptor sleeve. Somehow it must have worn and the pinion wobbles slightly. I did have a time where the grub screw got loose so I suppose the shaft spinning at high speed on a stationary sleeve probably wore it down a little.

IBJAMMIN · 04.29.2007, 08:38 PM

Very interesting most of the pinions I have seen on the larger cars were destroyed by the metal spur I believe there is an old post here somewhere a guy tried the hardened pinions in a CRT and they failed? from his pics though it looked like he had alot of flex in his mount causing the pinion to fail. :)

Serum · 04.30.2007, 02:18 AM

These pinions appear to be the thing then.. Great..

IBJAMMIN · 03:22 AM

Hey I was looking around and found this it's made by RRP for the Losi 8 it is wider then the STD steel spurs I dont know if Losi diff's are the same size as the Jammin diff's? but with the wider gear face the STD mod 1 pinions may work and it looks like this gear is offset away from the diff mount it might be posible to get this gear in the CRT.5 without having to relocate the diff holes in the chassis. :032:

http://www.amainhobbies.com/product_...ducts_id/12852

BP-Revo · 04.30.2007, 11:26 PM

Yea, but its still a steel spur, which poses the issue. If only RRP made a nylon version of that...then we may have something. I think I will wait for Mike's solution though.

BrianG · 05.01.2007, 11:13 AM

OK then, someone needs to make a palstic mold of that gear! Serioulsy, there are a couple people working on a plastic gear solution. One person, who will remain unnamed, is working on a 32p version for more gearing choices.

BrianG · 05.03.2007, 09:20 PM

Looks like Jammin is finally starting to release some of the hop-up parts for the CRT.5: http://www.jamminproducts.com/CRT5option.html

BP-Revo · 05.03.2007, 09:38 PM

Yea...I've been waiting for a few of those.

MetalMan · 05.03.2007, 10:19 PM

How about the 7075 chassis? I imagine that would help reduce chassis flex quite a bit.

gixxer · 05.03.2007, 10:23 PM

I just started building mine today. I really am not in a rush since I am waiting for someone to adapt a spur. I do think a 32p or 48p spur would be great to give us more gearing options. Pinions would also be cheap since you can get them at any lhs.

BP-Revo · 05.03.2007, 10:26 PM

Well, according to Tower's description the Pro version (kit version) comes with a 7075 chassis.

I beleive that the aftermarket 7075 is a lightweight version or something, unless the current chassis really isn't 7075.

BrianG · 05.03.2007, 10:28 PM

Once you put the battery tray in place, there is VERY little flex, if any. I would be more interested in the Al diff mounts, CNC braces, steering knuckles, and rear hub. Hopefully, RPM eventually makes lower arms for it. It should be fairly indestructable after all that!

BP-Revo · 05.03.2007, 10:29 PM

Gixxer, keep in mind that since it is direct drive, there is no slipper to absorb and drivetrain shock (first thing to go will probably be the spur). 32P will probably be fine, but I think 48P will be pushing it.

I personally have never stripped a spur in my life (knock on wood).

You could ask Mike to design some sort of adapter that will allow the use of Robinson 32P spurs that normally go on the Slipper Kits. That would allow you to switch from 65, 66, 68, and 70 or 72, 74, 76 (the larger spurs require a larger diameter mount).

I was actually thinking about this - it would make gearing an ease.

riceman · 05.03.2007, 10:30 PM

Nice. I just got an order in the mail today for the rear uprights I broke in my collision the 1/8th scale buggy. About a dozen packs through and my tally so far is one rear upright (p/n 40843), one broken 4mm ball end (p/n 37650), one arm end ball (p/n 40838).

IBJAMMIN · 11:11 PM

Chassis flex is not a problem with the battery mount and motor mount bolted to the chassis. :) The only weak link I have found is the brittle plastic used in the suspension pieces A trick used on the full size CRT was to boil the plastic parts in water to soften them up some. I just got my order of spare's from Nitrohouse I think I might cook up some CRT.5 parts tonight. :005:

BTW the pro kit comes with the hard anodized chassis and towers the RTR will probably come with a cheaper version I hear BCE is already working on a replacement and longer wheelbase chassis?