Bulliehead
Well-Known Member
Thats one great looking chassis!!!
BloodClod's Twin Force (new chassis pics added)
- Thread starter BloodClod
- Start date
nosyajg
Well-Known Member
i would go to thicker chassis plates...on my clod, someone made me a set of plates that were 3.5mm thick carbon fiber...i love it...
i know the twin force doesnt exhibit much torque twist in stock form already, but the shocks are axle mounted versus link mounted...i notice i had a lot more torque twist when comparing axle-mounted vs. link mounted shock positions...is that the carbon fiber chassis in the video? i cant make it out if it's the stock chassis or your custom one...either way- GREAT WORK...i'm jealous...
Thanks for the reply! I have been looking around for another setup in mine- because the mamba monster is TOO MUCH. Today while at the races I happened upon a truck that I rarely use and has that similar setup, except mine uses a Novak esc. I think you just saved me about $139.
Thanks for the updates, really enjoy your creativity and follow-through.
Thanks for the updates, really enjoy your creativity and follow-through.
HawnMT
Well-Known Member
Hi Tad, thanks - When I was researching custom twin force trucks yours was certainly one of the references for my design. What were your thoughts on your chassis' performance?
This is certainly interesting - and something I've been wondering about as I was thinking about how the suspension on my Diablo clod worked so differently from the Twin Force. I managed to do some speed runs with the truck today and took the chance to observe just how the suspension works.
On acceleration, the truck's entire chassis actually lifts slightly. I'm really no expert, but to me this is the result of the combination of a solid axle coupled with the unique twin ladder bar suspension. The torque of the spinning wheels will always act on the solid axle by forcing it to tilt backwards (front of the axle rotates upwards). Since the ladder bars are locked to the axles so they also rotate upwards lifting the chassis.
This is different in a 4-linked suspension, especially when the upper and lower links are generally parallel to each other. The same rotating axle now applies forces very differently to the links which are rotating on balls-and-rodends. As the axle tilts backwards, the upper links actually "pull" on the chassis and the lower links "push" on it causing the chassis to rotate in the same way - and it squats as it does so.
I noticed on my clod the rear actually squats too much so my thought was to lower the chassis mounting position on the rear upper links which should start to increase the anti-squat.
Does that make any sense?
If this is true, then I'm thinking the stock twinforce will also exhibit the same behaviour - though when mine was stock I hardly noticed it because the suspension was so stiff it didn't have any droop (so couldn't really "lift").
What do the experts think?
The torque twist is negligible and doesn't appear to affect the truck in any noticeable way. Today I tested the truck on tarmac and on really hard accleration it would lift one wheel perhaps a maximum of an inch off the ground. I'm not sure if that was a lot, but I had to really work it hard to get it to do so and even when it did it didn't seem to throw the truck off it's line.
The video was taken before the chassis was cut... so it was running an older design aluminum chassis that I made years ago. Similar to stock, but the truck runs lower than stock.
Thanks for your kind words Budhatrain - glad to be able to give some useful info especially after all the info you gave me on the clod!
So far the single 540 brushless + 2S lipo combination has been great for me... no real need for anymore power. I'm guessing going with anything more powerful will be quite a bit to handle for me.
Dominick Shauntee
Well-Known Member
Body looks great on there truck has a nice stance with stock twinforce tires and rims on there ...but i have to say you gotta paint those cool shock mounts of yours they stick out with all that nice black custom chassy work you have done just my 2 cents .... but i really do like you and other giving me ideas if and when i do a second twin/madforce ...
I wish I had skills to paint like that but I don't.
The shell came with decals, window trims, etc. All from hpi. I like how the shell is easy to paint up and decal.
I hear you and I'm thinking now that I know the suspension supports work I may consider cutting them out of carbon fiber instead to complete the look.
Maybe I'll work on a 4 link twin force next. In do like these axles. They are simple yet durable and if i wanted i could tune them with different oils too.
nosyajg
Well-Known Member
yep- thicker chassis plates and cf suspension supports is what you REALLY need...dont hesitate...you need to make them ASAP...
so you can sell me the ones on the truck now...lol...
Dominick Shauntee
Well-Known Member
hey BloodClod do you still have Wildfang ??? that was in my top 5 favorite wild daggers ever
The lift is from the trailing arm like said. With the twist of the drive line that is the only option it has is to lift. It isn't to bad if you run a stiffer spring. I run mine with softer springs and slight drop. It is pretty bad at lifting. I love how mine handles. I like my two 4 linked trucks better but can't really tell any performance difference.
Here is a couple pics of mine. I used carbon fiber on the trailing arms to mount the shocks. Haven't had any problems.
I wouldn't change a thing except the shock mounts to carbon fiber to match the chassis. It should handle very well by the looks of it.
Here is a couple pics of mine. I used carbon fiber on the trailing arms to mount the shocks. Haven't had any problems.
I wouldn't change a thing except the shock mounts to carbon fiber to match the chassis. It should handle very well by the looks of it.
Any pics of your 4 link trucks tad? I'm curious where you put the batteries.The lift is from the trailing arm like said. With the twist of the drive line that is the only option it has is to lift. It isn't to bad if you run a stiffer spring. I run mine with softer springs and slight drop. It is pretty bad at lifting. I love how mine handles. I like my two 4 linked trucks better but can't really tell any performance difference.
Here is a couple pics of mine. I used carbon fiber on the trailing arms to mount the shocks. Haven't had any problems.
I wouldn't change a thing except the shock mounts to carbon fiber to match the chassis. It should handle very well by the looks of it.
BTW, do you remember the thickness of the carbon fiber you used for the suspension?
Lol... Very cunning...
Really?! That dagger was a lot of hard work man... All hacksaw and power drill. To bad i sold it a long time ago. I just read up on it again on the old site. Sure brings back memories.
There are a few of them here.
http://s139.beta.photobucket.com/user/TweakedTad/library/#/user/TweakedTad/library/Twin?&_suid=135455904695407557414836969765
I need to get some new pics and video. These things are a blastto drive.
http://s139.beta.photobucket.com/user/TweakedTad/library/#/user/TweakedTad/library/Twin?&_suid=135455904695407557414836969765
I need to get some new pics and video. These things are a blastto drive.
HawnMT
Well-Known Member
Yeah, I see a lot of anti-squat in your 4 link setup too.....hmmmm. Been wanting to add a little anti-squat to my TXT setups but with the spacing from top to bottom links are so far apart it's pretty much impossible to get it to work without massively screwing up the link geometry. Might have to try it with a scratch build MF axled truck or maybe try it with Axial axles.
BTW Tad, what was that direct drive in? Funny enough the first batch of direct drives JoeWorks made used the Emaxx motor plate just like yours. Changed it over to a custom plate to make it more compact and easier to mount.
Oh yeah, if anyone decides to make the arm support/brace/shock mounts, I'd be interested in buying a set.
I forgot to say on the carbon plate it is 2.5 mm thick.
That was the first direct drive I done years ago. I started life as the center diff from a monster pirate. I wish I they made mod 1 pinions back then so I wouldn't have had to make a 32 pitch gear fit. It worked pretty good. easier to make now with just one brushless motor.
I have had good luck on the txt moving the lower links up. Truck seems to hook up better and not try to flip over on launch. Doesn't effect drive shaft much in the movement either.
http://i139.photobucket.com/albums/q317/TweakedTad/TXT/DSC00949.jpg
That was the first direct drive I done years ago. I started life as the center diff from a monster pirate. I wish I they made mod 1 pinions back then so I wouldn't have had to make a 32 pitch gear fit. It worked pretty good. easier to make now with just one brushless motor.
I have had good luck on the txt moving the lower links up. Truck seems to hook up better and not try to flip over on launch. Doesn't effect drive shaft much in the movement either.
http://i139.photobucket.com/albums/q317/TweakedTad/TXT/DSC00949.jpg