Wow i cant wait to see this finnished. amazing job
@oneskydog67686 күн бұрын
Ok another tip if you can see it on the buck it will print through the layup. Another thing use peel ply over the layup to remove excess resin and generate a surface texture. Peel ply can be applied in small pieces to cover complex areas. This will save you a ton of sanding.
@jimrawnsley6 күн бұрын
I am very new to GRP construction, it seems the more I read and watch, the less I know about it. I have made a start on the centre section (cockpit and 4" fore and aft) and was quick enough to get CSM/woven roving/CSM on wet on wet before cure started. I struck it this morning after 36 hours but will leave it loose on the buck to cure further until after this weekend as I am taking the chassis to Santa Pod for a CK event and some going around in circles. It struck easily with little damage to the buck. Tuesday will tell if I have done my measurements right!
@oneskydog67686 күн бұрын
Subscribed but, I suggest you use epoxy for your matrix for your fiberglass. Better strength, longer working time, I have been in the composites business for decades. Check out my 1926 Miller 91 Special Indy winner cyclekart. All composite sandwich body structure on a Steve Vincent copied frame. I have electric start, battery, lights, a F/R gearbox and it is still under 300 lb. Great fun!
@jimrawnsley6 күн бұрын
Thanks for the tip!
@davidjohnson951711 күн бұрын
Awesome work!
@olsonspeed14 күн бұрын
The body looks very symetrical in it's roogh stage. I agree, shaping and smoothing foam is not very much fun.
@Yosser7014 күн бұрын
Looks great mate. I might go down the route of a full fibreglass body on mine. What foam insulation did you use?
@jimrawnsley14 күн бұрын
PIR insulation given as waste from a nearby new build
@Yosser7014 күн бұрын
@@jimrawnsley Have you worked out how much fibreglass you’ll need?
@jimrawnsley13 күн бұрын
@@Yosser70 Yes, already have it 👍
@neilsmith593017 күн бұрын
Cyclekart is looking great Jim, You seem to have mastered the fiberglassing
@jimrawnsley17 күн бұрын
dusty job
@tiitsaul903621 күн бұрын
Interesting solution.
@olsonspeed29 күн бұрын
Looking very proper and well engineered.
@giovannaxynetta109929 күн бұрын
Fantastic! Mine is still in Fusion 360 but I do have some donor parts already, I'll go electric, 4ws and 4wd, much of it will be controlled by computers as I'm a former it-nerd. Keep up this great work.
@Yosser70Ай бұрын
I’m liking how you’ve widened the frame to support the axle. See a lot of these with 6in between the outer bearing and the wheel, it’s got to be more stable and stronger the way you’ve done it. Building my own at the moment and think I’ll do something similar.
@jimrawnsley29 күн бұрын
I was fortunate that the original had outriggers that looked like the set up I made... www.forix.com/8w/sokol/typd_rear.jpg
@UHO2212 ай бұрын
❤️❤️❤️❤️❤️👍👍👍🙏
@UHO2212 ай бұрын
👍👍👍👍👍❤️❤️❤️❤️❤️❤️🙏
@christophernewman50272 ай бұрын
I swear that KZread can read my mind sometimes. I was thinking about these yesterday and then this came up in my recommendations... 😮 Subbed
@neilsmith59302 ай бұрын
Hi Jim. Your cyclekart is looking great. I will be very interested in your fiberglassing over foam as I am near that stage also.
@jimrawnsley2 ай бұрын
New territory for me here, the more I talk to builders who have achieved some level of success with the process the more conflicting information I get, it could be a long process to get it somewhere near acceptable. The journey continues. When I started the build journal for this on the CKGB forum, the title was "Auto union type A - The difficult second cyclekart" It has proved a challenge and continues to do so. 🙂
@neilsmith59303 ай бұрын
Looking really great Jim. I think it is well scaled and will look just like the inspiration car
@olsonspeed3 ай бұрын
A sturdy and well-engineered machine, you have been making great progress.
@JaySoto-rh9ou3 ай бұрын
Can you help me out and let me know where you got those tires and rear axle
@jimrawnsley3 ай бұрын
Probably no help. The rear axle is from a lawn tractor with a peerless 100 series differential in a 3/4" axle sleeves out by myself to 1", and keyed together. The tyres are honda cub 17" tyres x 2 3/4" from Maaxis
@Lutzow7064 ай бұрын
Neat project! Looking forward to seeing how the front suspension does after stiffening!
@48dj3ikd4 ай бұрын
Damn that is so cool!!! I've been a bicycle mechanic for years and have always wanted to build one!!! So cool!! Please make some more videos of this project. Also check out Kenda tires. They actually make a 20×2.8 inch tire. That would be super cool to see some fatter tires on that thing! So awesome man!! I want one!
@jimrawnsley4 ай бұрын
Most cyclekarts worldwide are limited to 17" wheels (18" for Edwardian types with artillery wheels) In the U.K. we have a limit on tyre (tire U.S) width of 3.25", the ones on mine at the moment are 2.75" but I have some 3.25" ones for the back if I don't have too much grip - which can be dangerous in a cyclekart - better to slide than to flip! Normal bicycle wheels are not good on a cyclekart as they tend to end up looking like a pringle very quickly, we use 17" motorcycle wheels from pit bikes or Honda cubs.
@troyglossop11134 ай бұрын
ill be excited to see this when you have finished, i love the auto union cars! thank you for sharing
@skipstalforce4 ай бұрын
Really Cool!
@butchs.42394 ай бұрын
I'm glad to see I'm not the only one who prefers a dead pedal on the left and having both brake and throttle set up on the right.
@jimrawnsley4 ай бұрын
The trouble I had with the brake to the left foot is that it gives me less control of pedal pressure as I find I have nowhere to brace during braking and acceleration. We usually drive manual (stick shift) cars in the U.K. (less so now than when I learnt to drive :-) ) and that means 40 years of muscle memory for my left foot to forget it isn't pumping a clutch :-)
@JohnChrysostom1014 ай бұрын
The way you created those double arches and bars reminds me of bad prototypes of the past theirs no reason to box in your legs that way and in the event of an accident you are going to be badly injured and hard to remove otherwise it's amazing
@jimrawnsley4 ай бұрын
Thanks for the reply. As this is a cyclekart and therefore needs a body to be one, we do need to have somewhere to mount it. I appreciate your concern for my safety but leaving it as you suggest would mean missing out on all the fun with my cyclekart buddies... www.cyclekartsgb.com/
@cypressgold4 ай бұрын
Front wheels looked a bit wobbly in the video. Good cart though!
@jimrawnsley4 ай бұрын
Yes, one of the problems I need to sort out. The lateral movement in the ARBs is too much, welded strengtheners needed. As a first test drive on a new suspension system, it was ok
@davem16334 ай бұрын
Great job, well done. 👍
@olsonspeed4 ай бұрын
Sucess indeed! Did you find the steering heavy with forward drivers' position?
@jimrawnsley4 ай бұрын
Partial success @olonspeed, the steering was not heavy at all, I would say it was about right. Most cyclekarts have Pitman arm steering, mine has a rack with about three times the gearing of a Pitman arm set up. I have the same rack in my BSA three wheeler and it makes the steering a lot more predictable. I am running about 7 degrees of castor on both. steering weight difference is negligible. It goes where I point it very well :-) The lateral flex in the anti roll bars may prove excessive and I may need to weld in some lateral support before I am happy with it. I am taking it to a kart track with my cyclkarting buddies this weekend...
@olsonspeed4 ай бұрын
@@jimrawnsley Thanks for the update. Changes are inevitable in a new design, a few more upgrades and I am certain you will have it locked down.
@drlong084 ай бұрын
okay, where are the other 11 cylinders? Great test run!
@jimrawnsley4 ай бұрын
Thanks for the comment Dan, but the original had 16!!!
@Wtdtd2 ай бұрын
@@jimrawnsley The last one made, the type D, had a V12, so he's not necessarily wrong.
@drlong084 ай бұрын
If anyone want's to know where James is at anytime other than meal time.....well, you just know...excellent craftsmanship there!!
@Makermook4 ай бұрын
I can't tell by looking; is there a differential in the rear? If not, do both wheels drive or just one?
@jimrawnsley4 ай бұрын
Peerless 100series diff
@kevinsellsit55844 ай бұрын
After watching this I had to go check out the front suspension build video. Looks like anti-sway bars work great for torsion bars, and it's fully adjustable...love it! I had a 1/4 midget kart once that had torsion bars but set up like an early Dodge car with the bars going front to back through the lower control arm, but I like this setup better and you could only adjust ride height on that one.
@dennisjump86554 ай бұрын
Are you building this from plans? Looks great. This looks like the kind of project I'd love to build.
@jimrawnsley4 ай бұрын
Cyclekarts are pretty much built from scratch Dennis, cheaply using parts from many sources. Building them is as important if not more than cruising around in them with other cyclkartistas. Much more info on them here... www.cyclekartclub.com/
@olsonspeed4 ай бұрын
Excellent engineering and craftsmanship
@neilsmith59304 ай бұрын
Another great video Jim, kart is looking great
@jimrawnsley4 ай бұрын
Thanks 👍
@Notsoshadyacres.4 ай бұрын
Good thinking. This is the model of cycle car I wanted to build one day in the future. You seem to have thought of everything when it comes to the front suspension. Good job!
@drlong085 ай бұрын
I find your approach to a 2 piece frame rail setup interesting. Let's you focus on the two ends without having to constantly deal with the end you are not working on at the time, especially if you are having to lift it up onto a workbench of some sort. Cannot wait to see how your front suspension performs. Thanks for the videos!
@drlong085 ай бұрын
Are you doing the dual tires on the rear?
@jimrawnsley5 ай бұрын
The hill climb cars from Auto Union had the twin rear tyres (tires U.S) this one is more a track car so no. too much grip at the rear of a cyclekart could be problematic, I have some fatter tyres for the back that I may use as the original had larger rear tyres.
@jtpinion42945 ай бұрын
Nice design. Be great to see when it's done. Well done mate.
@jimrawnsley5 ай бұрын
Thanks 👍
@AAURAW1815 ай бұрын
Hi Jim started following you. I’m not talented as you but I enjoy building in my home garage. I’m interested in how you are going to build out the body. Take care. Tom H. From Las Vegas NV #LMECYCLES
@jimrawnsley5 ай бұрын
When it comes to the bodywork I have no previous skill with fiberglass, the thing I love about cyclekarts is, there is always a way and the cyclekart community is always supportive and full of ideas. So far I have talked to two of the CKGB members about the process, read several build journals on how they achieved theirs and have a contact from a retired member who used to teach fiberglass moulding. It is all part of the CK journey.
@alexandroramos15045 ай бұрын
Jim, can you share your overall frame measurements? I'm getting started and thinking about the seat position as the auto union design has the seat way forward. cheers.
@jimrawnsley5 ай бұрын
The frame is in two parts. The overall dimensions in width of both frames give or take a mm is 510mm. The overall length of the front frame is 1320mm and that has a length for driver between rails of 1220mm as the rails are set in a bit. The rear frame (Visible, it has legs inside the front frame) is 840mm. This comprises of a space between rails in length for the engine of 385mm (I can move the engine 55mm backwards and forwards in this space to tension chain) and a space for the axle gear between rails of 310mm. The front track is 965mm centre to centre. the rear track is yet to be set, but can be up to 1m. Wheelbase is 1800mm
@jimrawnsley5 ай бұрын
Remember, this is a caricature of the original, I have to steal space for the driver fore and aft to get in it. Provided the visual cues are there, it will be close enough for a cyclekart.
@alexandroramos15045 ай бұрын
Thanks for all the great input. I really appreciate it. @@jimrawnsley
Sorry to hear you have been ill, hope you are on the mend. You look to be making good progress on the vehicles systems and body formers.
@user-vy1ro2hj5f6 ай бұрын
А не сохранились ли чертежи? Любопытно, как устроена подвеска. На видео кажется что места для ног мало. Удобная ли посадка?
@user-vy1ro2hj5f6 ай бұрын
Просто красавица❤
@alexandroramos15047 ай бұрын
Jim, great build. are your swing arms custom? i really like this set up.
@jimrawnsley7 ай бұрын
If you watch my other videos, you can see the development of this idea, it is experimental but uses Miata mk 2 anti roll bars (MX5 UK) cut with a reaction lever welded on for the spring end. We will see how it performs in due course
@stevenhombrados15307 ай бұрын
Wow❤ a beautiful mechanical beast!
@tommyr957 ай бұрын
I just learned about cyclekarts and yours certainly looks quite exciting! With your front suspension, you should be able to swap between solid and independent operation, am I correct? And with your rack and pinion steering, it looks like your bump steer should be quite reasonable. Clearly the most interesting cyclekart project I've seen thus far and I'm looking forward to more updates! Cheers and enjoy the holidays.
@jimrawnsley7 ай бұрын
That's the plan, we will see how it works out. Everything I do seems to end up experimental 😂
@olsonspeed7 ай бұрын
It looks like you have the steering and suspension engineering sorted out. Enjoy your holiday!
Пікірлер
Wow i cant wait to see this finnished. amazing job
Ok another tip if you can see it on the buck it will print through the layup. Another thing use peel ply over the layup to remove excess resin and generate a surface texture. Peel ply can be applied in small pieces to cover complex areas. This will save you a ton of sanding.
I am very new to GRP construction, it seems the more I read and watch, the less I know about it. I have made a start on the centre section (cockpit and 4" fore and aft) and was quick enough to get CSM/woven roving/CSM on wet on wet before cure started. I struck it this morning after 36 hours but will leave it loose on the buck to cure further until after this weekend as I am taking the chassis to Santa Pod for a CK event and some going around in circles. It struck easily with little damage to the buck. Tuesday will tell if I have done my measurements right!
Subscribed but, I suggest you use epoxy for your matrix for your fiberglass. Better strength, longer working time, I have been in the composites business for decades. Check out my 1926 Miller 91 Special Indy winner cyclekart. All composite sandwich body structure on a Steve Vincent copied frame. I have electric start, battery, lights, a F/R gearbox and it is still under 300 lb. Great fun!
Thanks for the tip!
Awesome work!
The body looks very symetrical in it's roogh stage. I agree, shaping and smoothing foam is not very much fun.
Looks great mate. I might go down the route of a full fibreglass body on mine. What foam insulation did you use?
PIR insulation given as waste from a nearby new build
@@jimrawnsley Have you worked out how much fibreglass you’ll need?
@@Yosser70 Yes, already have it 👍
Cyclekart is looking great Jim, You seem to have mastered the fiberglassing
dusty job
Interesting solution.
Looking very proper and well engineered.
Fantastic! Mine is still in Fusion 360 but I do have some donor parts already, I'll go electric, 4ws and 4wd, much of it will be controlled by computers as I'm a former it-nerd. Keep up this great work.
I’m liking how you’ve widened the frame to support the axle. See a lot of these with 6in between the outer bearing and the wheel, it’s got to be more stable and stronger the way you’ve done it. Building my own at the moment and think I’ll do something similar.
I was fortunate that the original had outriggers that looked like the set up I made... www.forix.com/8w/sokol/typd_rear.jpg
❤️❤️❤️❤️❤️👍👍👍🙏
👍👍👍👍👍❤️❤️❤️❤️❤️❤️🙏
I swear that KZread can read my mind sometimes. I was thinking about these yesterday and then this came up in my recommendations... 😮 Subbed
Hi Jim. Your cyclekart is looking great. I will be very interested in your fiberglassing over foam as I am near that stage also.
New territory for me here, the more I talk to builders who have achieved some level of success with the process the more conflicting information I get, it could be a long process to get it somewhere near acceptable. The journey continues. When I started the build journal for this on the CKGB forum, the title was "Auto union type A - The difficult second cyclekart" It has proved a challenge and continues to do so. 🙂
Looking really great Jim. I think it is well scaled and will look just like the inspiration car
A sturdy and well-engineered machine, you have been making great progress.
Can you help me out and let me know where you got those tires and rear axle
Probably no help. The rear axle is from a lawn tractor with a peerless 100 series differential in a 3/4" axle sleeves out by myself to 1", and keyed together. The tyres are honda cub 17" tyres x 2 3/4" from Maaxis
Neat project! Looking forward to seeing how the front suspension does after stiffening!
Damn that is so cool!!! I've been a bicycle mechanic for years and have always wanted to build one!!! So cool!! Please make some more videos of this project. Also check out Kenda tires. They actually make a 20×2.8 inch tire. That would be super cool to see some fatter tires on that thing! So awesome man!! I want one!
Most cyclekarts worldwide are limited to 17" wheels (18" for Edwardian types with artillery wheels) In the U.K. we have a limit on tyre (tire U.S) width of 3.25", the ones on mine at the moment are 2.75" but I have some 3.25" ones for the back if I don't have too much grip - which can be dangerous in a cyclekart - better to slide than to flip! Normal bicycle wheels are not good on a cyclekart as they tend to end up looking like a pringle very quickly, we use 17" motorcycle wheels from pit bikes or Honda cubs.
ill be excited to see this when you have finished, i love the auto union cars! thank you for sharing
Really Cool!
I'm glad to see I'm not the only one who prefers a dead pedal on the left and having both brake and throttle set up on the right.
The trouble I had with the brake to the left foot is that it gives me less control of pedal pressure as I find I have nowhere to brace during braking and acceleration. We usually drive manual (stick shift) cars in the U.K. (less so now than when I learnt to drive :-) ) and that means 40 years of muscle memory for my left foot to forget it isn't pumping a clutch :-)
The way you created those double arches and bars reminds me of bad prototypes of the past theirs no reason to box in your legs that way and in the event of an accident you are going to be badly injured and hard to remove otherwise it's amazing
Thanks for the reply. As this is a cyclekart and therefore needs a body to be one, we do need to have somewhere to mount it. I appreciate your concern for my safety but leaving it as you suggest would mean missing out on all the fun with my cyclekart buddies... www.cyclekartsgb.com/
Front wheels looked a bit wobbly in the video. Good cart though!
Yes, one of the problems I need to sort out. The lateral movement in the ARBs is too much, welded strengtheners needed. As a first test drive on a new suspension system, it was ok
Great job, well done. 👍
Sucess indeed! Did you find the steering heavy with forward drivers' position?
Partial success @olonspeed, the steering was not heavy at all, I would say it was about right. Most cyclekarts have Pitman arm steering, mine has a rack with about three times the gearing of a Pitman arm set up. I have the same rack in my BSA three wheeler and it makes the steering a lot more predictable. I am running about 7 degrees of castor on both. steering weight difference is negligible. It goes where I point it very well :-) The lateral flex in the anti roll bars may prove excessive and I may need to weld in some lateral support before I am happy with it. I am taking it to a kart track with my cyclkarting buddies this weekend...
@@jimrawnsley Thanks for the update. Changes are inevitable in a new design, a few more upgrades and I am certain you will have it locked down.
okay, where are the other 11 cylinders? Great test run!
Thanks for the comment Dan, but the original had 16!!!
@@jimrawnsley The last one made, the type D, had a V12, so he's not necessarily wrong.
If anyone want's to know where James is at anytime other than meal time.....well, you just know...excellent craftsmanship there!!
I can't tell by looking; is there a differential in the rear? If not, do both wheels drive or just one?
Peerless 100series diff
After watching this I had to go check out the front suspension build video. Looks like anti-sway bars work great for torsion bars, and it's fully adjustable...love it! I had a 1/4 midget kart once that had torsion bars but set up like an early Dodge car with the bars going front to back through the lower control arm, but I like this setup better and you could only adjust ride height on that one.
Are you building this from plans? Looks great. This looks like the kind of project I'd love to build.
Cyclekarts are pretty much built from scratch Dennis, cheaply using parts from many sources. Building them is as important if not more than cruising around in them with other cyclkartistas. Much more info on them here... www.cyclekartclub.com/
Excellent engineering and craftsmanship
Another great video Jim, kart is looking great
Thanks 👍
Good thinking. This is the model of cycle car I wanted to build one day in the future. You seem to have thought of everything when it comes to the front suspension. Good job!
I find your approach to a 2 piece frame rail setup interesting. Let's you focus on the two ends without having to constantly deal with the end you are not working on at the time, especially if you are having to lift it up onto a workbench of some sort. Cannot wait to see how your front suspension performs. Thanks for the videos!
Are you doing the dual tires on the rear?
The hill climb cars from Auto Union had the twin rear tyres (tires U.S) this one is more a track car so no. too much grip at the rear of a cyclekart could be problematic, I have some fatter tyres for the back that I may use as the original had larger rear tyres.
Nice design. Be great to see when it's done. Well done mate.
Thanks 👍
Hi Jim started following you. I’m not talented as you but I enjoy building in my home garage. I’m interested in how you are going to build out the body. Take care. Tom H. From Las Vegas NV #LMECYCLES
When it comes to the bodywork I have no previous skill with fiberglass, the thing I love about cyclekarts is, there is always a way and the cyclekart community is always supportive and full of ideas. So far I have talked to two of the CKGB members about the process, read several build journals on how they achieved theirs and have a contact from a retired member who used to teach fiberglass moulding. It is all part of the CK journey.
Jim, can you share your overall frame measurements? I'm getting started and thinking about the seat position as the auto union design has the seat way forward. cheers.
The frame is in two parts. The overall dimensions in width of both frames give or take a mm is 510mm. The overall length of the front frame is 1320mm and that has a length for driver between rails of 1220mm as the rails are set in a bit. The rear frame (Visible, it has legs inside the front frame) is 840mm. This comprises of a space between rails in length for the engine of 385mm (I can move the engine 55mm backwards and forwards in this space to tension chain) and a space for the axle gear between rails of 310mm. The front track is 965mm centre to centre. the rear track is yet to be set, but can be up to 1m. Wheelbase is 1800mm
Remember, this is a caricature of the original, I have to steal space for the driver fore and aft to get in it. Provided the visual cues are there, it will be close enough for a cyclekart.
Thanks for all the great input. I really appreciate it. @@jimrawnsley
Can you share your blueprints??? Thank you!!!
porschecarshistory.com/auto-union-type-c-prototype-parade-98/
@@jimrawnsley thank you!
Looking really good, very thoughtfully designed
Thank you! Cheers!
How to make tools for dousing.
dousing?
Sorry to hear you have been ill, hope you are on the mend. You look to be making good progress on the vehicles systems and body formers.
А не сохранились ли чертежи? Любопытно, как устроена подвеска. На видео кажется что места для ног мало. Удобная ли посадка?
Просто красавица❤
Jim, great build. are your swing arms custom? i really like this set up.
If you watch my other videos, you can see the development of this idea, it is experimental but uses Miata mk 2 anti roll bars (MX5 UK) cut with a reaction lever welded on for the spring end. We will see how it performs in due course
Wow❤ a beautiful mechanical beast!
I just learned about cyclekarts and yours certainly looks quite exciting! With your front suspension, you should be able to swap between solid and independent operation, am I correct? And with your rack and pinion steering, it looks like your bump steer should be quite reasonable. Clearly the most interesting cyclekart project I've seen thus far and I'm looking forward to more updates! Cheers and enjoy the holidays.
That's the plan, we will see how it works out. Everything I do seems to end up experimental 😂
It looks like you have the steering and suspension engineering sorted out. Enjoy your holiday!