dr_hfuhuhurr

iTrader: (95)

This guy from Facebook has them.
https://www.facebook.com/SpectacleEngineering/

FanBoi

I believe my chunky cva issue will be resolved by adding down travel limiters inside the front shocks. Thank you big ted and CruiseM for the ideas.

My next question is, is it better to adjust my steering with the trim on the controller or with servo link turnbuckle? The picture in the manual says 15mm, when I measure the gap in the picture it is 17mm. When I set it to 15mm I have to add a lot of left sub trim in the controller. Does it make a difference where I adjust the steering?

RogerM

Use the sub-trim to set the servo horn vertical and then adjust the link to the bell cranks to get them parallel to center the steering.

FanBoi

This worked very well. Thank you RogerM! I have to turn my my "steering rate" down to 60% but I still get a good lock and I assume that's not abnormal.

Smoking motor..

after setting sub trim So the that car drive straight with steering links set at the same length.
Turn the steering rate to 100% then set the steering epa on the radio so that the servo only Moves the steering hub up to the steering stop you will hear a buzzing noise coming from the servo if the servo epa is set to go past the stop.
Make sure that you set the lock for both L and R up to the dead stops.
This means when you change the steering rate you will have equal lock L and R.
And you won’t be stressing the servo motor out trying to go past the steering stop.

Ray Munday Dremals the stops off the hub to get more steering lock if it is needed.

cartmen34

iTrader: (2)

I had this exact problem so I picked up a set of the aluminum diff cups. I'm correct in assuming the screws to bolt the whole thing together should have low strength thread lock applied to them, correct?

jlett21

I just made 100% sure there's zero lube in the threads and just snugged them up dry with no thread lock what so ever. Haven't had any issues at all running the aluminum cups without thead lock. If I were to use a fastener keeper i would use vc-3, it holds the screw without hardening. I use it on anything that experiences vibrations and a chemical threadlock is not ideal.

cartmen34

iTrader: (2)

Thanks for the advice jlett! I wasn't aware of vc-3. I'll check it out.

RogerM

I always advise that people use the shorter servo arm, partially for this reason but also because it makes the steering feel less sensitive to inputs.

big ted

iTrader: (2)

I had totally missed this:

https://www.liverc.com/news/new-team...and-outdrives/

Guess this allows running full droop & up travel without worrying about chipping outdrives or breaking dogbones?

For those of us running on smoother, higher traction surfaces I'm guessing we're not giving up much just limiting the shock travel?

cirnomodo

Depending on personal preference, plastic spacers are much cheaper. It's not like the shock end will back itself out unless you took a hit to break it and lose the plastic spacer

It will definitely help out the rear as the shaft is barely touching the rear diff cups at full travel. There are people trimmed at least 1.5 mm off the diff cup in the front themselves instead of using plastic shims to stop interfering with the front diff cup.

Cday

iTrader: (7)

Ive never had an outdrive break.. One of mine is barely chipped tho

Di_spencer

iTrader: (18)

Hi everyone, I've been running my B74 and my T74 truggy conversion on an outdoor smaller 1/8 style track lately and have been having some issues with spur gear wear from the pieces of dirt. So, I designed a spur gear over to go over the top of the carbon center brace to prevent dirt from entering the top side of the gear mesh and chewing up the gears. It has been test fit with a stock slipper, schelle slipper, and a center diff and fits well with all of them. I've printed a few prototypes on my desktop printer and now that I've finalized the design I plan on ordering a few to be printed in black nylon using a powder-bed process called MJF which results in production quality, parts that have a consistent slightly grainy finish. Before I place my order I wanted to see if anyone would be interested in ordering some because the more I order the better the price is.

the resistance

iTrader: (3)

Quick question for a future project of mine. What is the width of of the b74 aluminum chassis without the side pods attached? Any help would be appreciated

Di_spencer

iTrader: (18)

I can measure mine later tonight.

Edit: chassis is 75mm wide, the depth of the notch towards the center is 2mm (71mm between notches), and the depth for the notch from the top of the chassis is 0.9mm.

I hope that helps with your project.