Swingarm Assembly for the 1911 Franklin CycleKart
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- เผยแพร่เมื่อ 23 ส.ค. 2024
- In this video I review that design and construction of the swingarm assembly for the 1911 Franklin CycleKart. Including the brake caliper mounts.
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Steve I totally dig this cart with swing arms, good stuff! Had to chuckle when you said “hard to weld upside down”. I’ve seen talented pipe welders weld upside down using a mirror,Mya not me either I struggle to TIG flat. Keep up the great videos, you’re an inspiration.
Thanks for following allong.
Looks really good. The design is very clean and well done.
Thanks, getting close to seeing how it drives
@stevevinson6030 same with mine. I can't wait to see the results of my first build.
Kart is coming right along. Getting things done on mine in little tiny baby steps.
Fantastic, thanks for following along
Hi Steve another great video, I am still only in planning stage but i came up with a problem the seat. it might pay for you to mock up the seat on the frame and its position. I use freecad as design and planning tool for projects, and it can produce 3D reps. I was planning a 1911 Scat car uk and found the seat height (back) in images was level with the engine cowling. I found i had to develop a low floor pan of about 300mm below the top of the frame to make sitting comfortable otherwise sitting with knees up around your ears is never fun. its unfortunate that I can't attach an image to the comment. I hope this doesn't cause you to many headaches. I am also investigating engine in front with a drive shaft along inner frame edge and that is a headache.
Warwick nz
Sounds like a fun project you have going on. the challenge is to fit a full size human driver in a car that is 25% or so smaller than the original. We always have to stretch the size of the cockpit opening just to fit
good vid looks like a Traxxas rear end
I hope it works as well
@@stevevinson6030 It will work great
Hi Steve, I'm wondering if this set-up might cause engine running problems. With the engine attached to the suspension, it will be bouncing along with each deflection of the rear axle. Would this make the fuel in the carburetor, and engine oil jump around ? I can only imagine how much shock the carburetor float will be subject to along with the engine oil being tossed around inside the crankcase. The only way this set-up might hold up is if you were running a two stroke engine like that is used in a chain saw. I would think a drive shaft or extended chain drive with an appropriate tensioner to allow the engine to be attached to the chassis while allowing the axle to flex as needed. Also having the engine attached to the suspension will increase the suspension weight making it less responsive to deflections of the ground. These are just a few things that I see with you design, but I am probably wrong with my assumptions.
I will find out very soon. I am not too worried about Carb issues as the solid axle mounted with out suspension will move about he same amount and all my other karts have that layout. This design is all new, so will likely encounter some sort of issue. Thanks for following along
There’s virtually no difference between having the motor mounted to the suspension or the frame, they both respond to bumps the same way. Whether the motor is moved by the suspension or the frame it’s still moving the exact same way.
That looks amazing!
Thanks for watching
Cost and rules are restricted to this engine or one like it
Why are you using this engine why not Harley v tween for example, is it the cost?
All cycle karts use that engine (or equivalent)
It is a 6.5 Honda or a 212 Predator engine from Harbor Freight
You are thinking of a cycle car
@@kennethlindahl9206 I saw a video of miss backfire and it has a v tween engine. And I think they are more reliable better engines and more power...
@@jeannedellphotograph the point is they run the same motors so equal competition
there is a top end on price too
there are some rules you have to follow
So Steve, what happens if your right rear wheel hits a bump and compresses the leaf spring on that side, won’t that place a twisting motion on your trailing arms ? In other words, your rear axle and trailing arms are a solid assembly that only moves up and down together, so if one rear wheel hits a bump it’ll impart a twisting motion to the assembly, which I think may cause something to bend or break. I’m thinking maybe have your trailing arms mount to the rear axle assembly the same way they mount to the frame up front, that way your rear axle can twist side to side without straining anything.
I’m really impressed with the design and how the motor mounts to the rear axle. 👌
On second thought, mounting the trailing arms the same way they are mounted to the front won’t help as they’re tied together with the motor mount.
I am in uncharted waters....maybe it will work. I based my design on the Chinese go karts that have full rear suspension. The main difference is that my swing arms are longer.
After thinking about it i thought maybe your swing arms will perform like torque tubes. Ive been very interested to see what you came up with. Mine worked pretty good except I expected to get a better ride quality on rough surfaces, but it beats me up pretty good. It’s great on smooth surfaces and even dirt roads. I’ll be interested to hear how yours works.