• Welcome to RCCrawler Forums.

    It looks like you're enjoying RCCrawler's Forums but haven't created an account yet. Why not take a minute to register for your own free account now? As a member you get free access to all of our forums and posts plus the ability to post your own messages, communicate directly with other members, and much more. Register now!

    Already a member? Login at the top of this page to stop seeing this message.

e's ExMT

M, I think you could make reforming work, but even if you get the Mad tubes straight, you still have to face the flanges. It's in the lathe now, why not just turn the things to true, and sleeve 'em with something straight?

The better the alignment, and ability to retain it, the thicker I can cut the inboard end. I may cut a piece to test to yield, for fun, but... more is better in this case, no matter what the #s.

You are right, if I am going through the trouble of aligning the stock tubes, I might as well get some of the stone tubes. I'm going to need to talk to you about that then.

We'll have #s on the UJs by Wednesday afternoon, I'll post them here for you.

What are the dimensions on the Axial knuckles? You got me thinking... again.

The Mad Torque knuckles are almost exactly the same dimensions as the Axial stock knuckles. I can get a pic up in a little bit if you would like to see.
 
You are right, if I am going through the trouble of aligning the stock tubes, I might as well get some of the stone tubes. I'm going to need to talk to you about that then.

The Mad Torque knuckles are almost exactly the same dimensions as the Axial stock knuckles. I can get a pic up in a little bit if you would like to see.
YGPM

If they won't fit Cs that take at least 7mm ID bearings, I can't use them. I'm hoping to put a lot of power to these things someday (it's a sickness), I'm done with puny bearings.
 
The long tubes are cut, squared, the ID is tapered (to accommodate the stub's stress riser reducer), and hand de-burred.

This is the last of the long tubes.

A, NRCX just confirmed your order. Intact.
 

Attachments

  • 100_2011.JPG
    100_2011.JPG
    149.5 KB · Views: 265
The long tubes are cut, squared, the ID is tapered (to accommodate the stub's stress riser reducer), and hand de-burred.

This is the last of the long tubes.

A, NRCX just confirmed your order. Intact.

Lookin good!!! Can't wait to see how those U Joints work out!!! They looked prety stout on the web page!!!

What's the outside diameter of the tube so I can start working on the bracket. I think that I wan't myine shaved down smooth and MT tube to go further inside if there's enought room. if not, I'll find a way to mount it up no problem.
 
Last edited:
YGPM

If they won't fit Cs that take at least 7mm ID bearings, I can't use them. I'm hoping to put a lot of power to these things someday (it's a sickness), I'm done with puny bearings.

The outer bearing outer diameter on them is only 10mm, so I don't think they will fit anything larger than 6mm.

Email sent...
 
It varies from 20.00mm to 19.66mm.

Molded parts quickly show their inconsistencies when cut with precision. As you can see, these are pretty precisely molded. If the Mad tubes were that nice, we wouldn't be having all this fun.

I'll wait to shave yours until just before shipping. You have time to ponder mounts. I prefer to attach the links and shocks to the brace, it will be the most rigid, and insures those loads are transmitted directly to (and/or retained within) the chassis. When you feel the difference the quality alignment makes, you might not want to add any otherwise easily re-directable loads.

Long stub. Will do.

I'm looking forward to the UJs, too. Really want to angle test one to destruction...:mrgreen:
 
Last edited:
M, you have a tracking #. I'll forward the notification of shipment.

The UJs have identical dimensions to the Savage, from the pivot pin out. There are a couple ways to fit these to the stock Max knuckles, we'll hash that out soon.

The Max short tubes all came with bearings, in ziplock bags. Pulled from RTRs. As I have stated, I don't mind that a bit... I hate backorders... but don't be surprised if they go out of stock soon.

Guys, these things turn smoothly at a far greater angle than the Integy CVDs. Until they are mounted, I won't try to guess the max, but I suspect you will both be quite satisfied with your purchases. :mrgreen:"thumbsup"
 

Attachments

  • 100_2013.JPG
    100_2013.JPG
    97.2 KB · Views: 249
Last edited:
M, you have a tracking #. I'll forward the notification of shipment.

The UJs have identical dimensions to the Savage, from the pivot pin out. There are a couple ways to fit these to the stock Max knuckles, we'll hash that out soon.

The Max short tubes all came with bearings, in ziplock bags. Pulled from RTRs. As I have stated, I don't mind that a bit... I hate backorders... but don't be surprised if they go out of stock soon.

Guys, these things turn smoothly at a far greater angle than the Integy CVDs. Until they are mounted, I won't try to guess the max, but I suspect you will both be quite satisfied with your purchases. :mrgreen:"thumbsup"


I think we've got a winner here!
 
There is a tiny bit more angle to be had by rounding the ears with a dremel, and the useful angle will be determined by the precision and rigidity of the setup, but, according to my True Angle... the interference in the joint begins at...

50 degrees.

Boys, we are in the hunt. Suit up.
 
Those look a bit diferent then the ones pictured on their web site. The ones on the web page look to be at least 5mm in diameter. The main plus will be the ability to use an 8mm hub. The stock hubs are always bending of breaking on me. I'm looking forward to this upgrade. Thanks again for all your help with this. I can't wait to test and see if this will be a viable solution for improving the EXMT Axle. I wish I had to mad skills with a lathe like you do. I though of picking one up, but I won't know how to even start using it. The only lathe I ever used was back in high school in wood shop 13 years ago. That wasn't hard but it didn't require much in the means of precission.
 
A, you are very kind. The truth is I'm just glad I have a little something I could bring to this party.

This is the perfect day to thank you guys for creating an environment where there are no stupid questions, and the cure for ignorance is actually a ton of fun. I worked to create precisely this climate in my shop, and frequently succeeded. It kept life interesting, and I missed it as soon as I retired.

You guys got me into this mess... remember that, when I refuse to leave... :mrgreen:

I don't envy guys with leading edge crawlers... but I most certainly envy the pioneers who started it all. As it stands today, there is still a lot to learn, but, I would have really liked to be here in the beginning. This Mad thing is a tantalizing taste of what it must have been like.

Happy T-day to everyone.
 
Those are the cut tubes, looks like they cut up really well.
Yup. "thumbsup"

I had to back off on the tolerances a bit on the stubs. This stuff cuts very cleanly, and the variances in the tube IDs were enough that when the stubs were cut too close, a random pairing caused a problem. I pushed a snug pair together by hand, and they jammed enough that I couldn't get them apart by hand... even warmed up. The Rover gets that set, I kinda chewed it up (cosmetically) prying it back apart.

You guys will get your pre-paired. If you lose track, just swap them so you like the fits. None will jam, but some may feel looser. This will not affect performance, but just bugs me as a machinist. I really like this stuff... the Grizzly does too. 1 RCH is easy to attain.

The short tubes are now out of stock... as I predicted. I hope these aren't the last we see... I have a ton of time into all this, and just got a rhythm going. I think I'd like to build more rigs based on these.
 

Attachments

  • 100_2018.JPG
    100_2018.JPG
    141.9 KB · Views: 219
Lookin good, I'm getting so excited about these. Especialy since I broke 2 venom c's crawling around on the curb today !!! I can't wait to get these bad boys on.

Sent from my PC36100 using Tapatalk
 
Yeah, I'm getting excited about this too. :)

This is your first long stub. It's cut very precisely against a very tight mandrel... and you can see the difference in the precision of the Mad vs Max parts. Hard to see are the minor voids in the Mad plastic. When cut, they leave what looks like a bubble on the surface. Not a problem, just an observation on the overall quality of the moldings.

Kinda cool is the fact that when assembled, all the precision cuts and hand dressing are hidden. These things have to be checked closely to see that they aren't just 1 stock molding.
 

Attachments

  • 100_2020.JPG
    100_2020.JPG
    121 KB · Views: 230
Very nice, awesome work!!!! BTW, The testing I did on the rig, once we have this upgrade on, I think We've got a light weight champ on our hands!! Now the driver just needs to get out there and practice!! I'm just afraid to drive it at the moment for fear of breaking another C before the comp kicks off in december because I'm fresh out of C's!!
 
Back
Top