Show Posts
1
Build journals / Aston Martin Build?
« on: 14 Dec 25, 09:13 pm »
Hi, some photos from my build so far.
Aston Martin was the original inspiration but it seems that the chassis can be relatively generic so this may change depending on how well body parts go! i am being very flexible in this bit, as i have not built one before.
I bought wheels from Ebay, and went through 3 jigs trying to work out the best way to fix the gokart hubs to them, found that wood router bits are best on 6mm Al (not milling machine bits). Also found that keeping router stationary and moving the al gave the best results. they seem pretty well balanced as well. can see that i had to warm the hubs up to fit the bearings which had been in freezer for a few hours, worked a treat, but i needed more heat that the hair dryer.
Made a "strong back" to lay the chassis out on and hold parts in places as they were welded. generally went well, but amazed at the shrinkage on some of the welds, can see this in the tapered front pics.
Building with my son, so had a photo of him welding chassis!
bulkheads from Ply initially, but you will see i also made strength from 12mm steel section that was bent to match. made a simple bending jig from angle and tube.
pedals have been a nightmare! three different builds and still not sure i have got it right! problem was length in the cart, i have long legs and i positioned the cross brace too far back, realised that i could cut holes in this thought and have brakes and throttle forwards of this point. still not sure on pedals though!
i plan on having radius rods from the chassis to the top of the kingpin. had to make some small spacers from steel tube to get max angle from rose joints. not sure that this will work yet.
floor pan made of ply, glued together. This is my happy place(!), i make a lot of things from ply!
i also have English wheel (what a lovely and engaging bit of kit!!), and am looking at making a simple home made shrinker, would like the body to be all Al. but this is a wish at the moment!
hand brake plan, ebay hand brake with a bowden cable to the hydraulic foot brake, i think this is allowed in the rules.
comments and suggestions or questions welcome!
currently have a 200cc gx200 clone engine with the torque converter, never realised how many chain options existed! have what i think is a compatible set now!
I wanted the engine to sit low so have the torque converter pointing down giving a short rer distance but less ground clearance, it is still not as low as the chainring on the axle.
photos to follow....
matt
matt
Aston Martin was the original inspiration but it seems that the chassis can be relatively generic so this may change depending on how well body parts go! i am being very flexible in this bit, as i have not built one before.
I bought wheels from Ebay, and went through 3 jigs trying to work out the best way to fix the gokart hubs to them, found that wood router bits are best on 6mm Al (not milling machine bits). Also found that keeping router stationary and moving the al gave the best results. they seem pretty well balanced as well. can see that i had to warm the hubs up to fit the bearings which had been in freezer for a few hours, worked a treat, but i needed more heat that the hair dryer.
Made a "strong back" to lay the chassis out on and hold parts in places as they were welded. generally went well, but amazed at the shrinkage on some of the welds, can see this in the tapered front pics.
Building with my son, so had a photo of him welding chassis!
bulkheads from Ply initially, but you will see i also made strength from 12mm steel section that was bent to match. made a simple bending jig from angle and tube.
pedals have been a nightmare! three different builds and still not sure i have got it right! problem was length in the cart, i have long legs and i positioned the cross brace too far back, realised that i could cut holes in this thought and have brakes and throttle forwards of this point. still not sure on pedals though!
i plan on having radius rods from the chassis to the top of the kingpin. had to make some small spacers from steel tube to get max angle from rose joints. not sure that this will work yet.
floor pan made of ply, glued together. This is my happy place(!), i make a lot of things from ply!
i also have English wheel (what a lovely and engaging bit of kit!!), and am looking at making a simple home made shrinker, would like the body to be all Al. but this is a wish at the moment!
hand brake plan, ebay hand brake with a bowden cable to the hydraulic foot brake, i think this is allowed in the rules.
comments and suggestions or questions welcome!
currently have a 200cc gx200 clone engine with the torque converter, never realised how many chain options existed! have what i think is a compatible set now!
I wanted the engine to sit low so have the torque converter pointing down giving a short rer distance but less ground clearance, it is still not as low as the chainring on the axle.
photos to follow....
matt
matt