JeepinDoug's OTT Berg

[Harvo]

You know.... with as many people that run losi shocks and big bores, I'll bet you could sell quite a few of those shock mounts in those varieties... even if you made them from aluminum or delrin. I have wondered why someone with skills such as yourself hasn't already done that. Nice work! "thumbsup"

 

[SaxtonSlaughter]

.

The rig looks grate Doug"thumbsup"

 

[JeepinDoug]

You know.... with as many people that run losi shocks and big bores, I'll bet you could sell quite a few of those shock mounts in those varieties... even if you made them from aluminum or delrin. I have wondered why someone with skills such as yourself hasn't already done that. Nice work! "thumbsup"

:lmao:
For a second I thought you were talking about the spring cups, then the picture loaded.
When I made these, I made a few extra sets and sold them here. I do alot work with exotic metals but never Titanium. Infact Titanium is a completely different alloy then I'm use to. I am having fun learning how it cuts but it takes quite a different cutting tool. When you don't have the correct inserts for Ti alloy you end up spending alot of money on them and the material. For example, I bought a 4 foot stick of 5/16 6al-4v and it cost $68.
Most hobbiers will not want to pay the cost. I can't afford the cost of enough material to get a price break.
Thanks

 

[JeepinDoug]

Coming along nicely Doug! Almost a RTR sounds like.

It's a beauty, Doug!!! "thumbsup"

The rig looks grate Doug"thumbsup"

Thanks Jake, Greg and Kevin.
I've been having fun with this build.
Yesterday DPDSurf mentioned something I thought of last week..........that this rig should be a shelf queen. Obviously..I can't do that, not the way I drive. :lmao:

 

[JeepinDoug]

I'll take a servo mount! lol. no but seriously I will.. Looking good!

I could make one and send it to a modeler for cad files. I cobbled it in a Bridgeport. Machinist call "cut for effect", basically cut, test-fit, cut, test-fit and so on.
I'm not to sure how this will work nosing into a rock and getting undercropped. We'll see.

 

[picklewagon]

If it means anything, I'd buy a servo mount as well.
Shelf queen? I don't see you as a shelf queen type of guy Doug, i see you more as a 3' jump from rock to rock kind of guy. With all that weight removed and JPH motors, your new rig may end up in the bay though. Think it will float?:lmao:
Are those berg or axial VP knuckles and 300's?

 

[RcBro]

Yes' I've be interested. Be interested to see if it hangs up as well, looks like a great servo protection option.

 

[mann0mann]

I'll buy more than one! :mrgreen:

 

[scorpian owner]

What an awesome rig love the machine work on the axles

 

[picklewagon]

Big fat bump! Geez Doug, is it done yet? Probably the most interesting berg build ever needs to be driven!

 

[JeepinDoug]

It should be running tonight :mrgreen:.
Still need to make body mounts, drag link and small stuff.

 

[JeepinDoug]

Ok, small stuff is done. Still need a drag link and body mounts.
I also need to thru the programming. I have everything equally set on the ESCs yet my rear motor is rolling earlier and faster.
I played with the mixes to equal them out which is fine for now.
I may need to swap front and rear motors and see if I get the same issues.

 

[tallyram]

i have the same issue. it seems like the front is running at 80%-90% and the rear is at 100%. i did the same thing with the radio adjustment.

 

[Grimreeper]

did we ever get a finished weight?

 

[JeepinDoug]

Not too impressive. 5lbs, 8 oz less body.
I have been playing around with it a little and it crawls very good.
Side hilling is the best I've ever seen but that's still without a body.

I need to make a few changes that will lighten it up some more.
I would also like to put the RC axle master rear shafts in but I'll wait for a final weight on it.

I played around with the ESCs and mixes and got a much more satisfactory result. I'm running a DX6i and two Tekin FX-R Pros. The 6i is good for 2 mixes but my mixing combos give me 4 mixes;
1) front dig
2) 4wd
3) Clod delete (50%F/100%R)
4) Squat mode (100%F/50%R)

Squat mode is the side hill killer.
I'm still slowly getting used to the sticks and being careful while driving bodiless.

 

[4xFord]

5.5lbs RTR with body is pretty close to the sweet spot Doug. I prefer 5.25lbs. I have run all the way from 4.5lbs to 7lbs and 5.25 is by far my favorite. "thumbsup"

 

[guidetti_angelo]

did you countersing front axle? compliments for the result..
i write from Italy and for my berg i would to do a similar job..
i have a friend that have a workshop with lathe and cutter..this afternoon i bring him rear axle to reduce it from 16mm of diameter to 11 mm of diameter but frontend for now i have no idea..
i saw your great job on your axle so can you tell me specifically which tools did you use for front axle?
thanks in advance
Angelo

 

[JeepinDoug]

Thanks Angelo.
The chamfer on the axle tube was done with a Hardinge GT CNC lathe.
A 5c emergency collet was bored to hold the tube flange and a groove tool was programmed to generate the angle.
Forming this angle would be a bad thing as it will spit the tube from the collet, unless you minimize your depth of cut, and take several cuts.

 

[guidetti_angelo]

Thanks Angelo.
The chamfer on the axle tube was done with a Hardinge GT CNC lathe.
A 5c emergency collet was bored to hold the tube flange and a groove tool was programmed to generate the angle.
Forming this angle would be a bad thing as it will spit the tube from the collet, unless you minimize your depth of cut, and take several cuts.

thanks"thumbsup"