Wheels vacumforming.

Tips and tricks about building a car. painting it a making it run smooth.
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kiklo
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Posts: 296
Joined: Mon 9. Nov 2015 11:49
Location: Norway

Wheels vacumforming.

Post by kiklo » Sat 19. Sep 2020 09:49

Wes do you manage to produce the wheels with axle hole or do you drill it out later ?
Racing Regards

Kim K.

WesR
Posts: 362
Joined: Fri 21. Dec 2012 17:37

Re: Wheels vacumforming.

Post by WesR » Sun 20. Sep 2020 19:14

DSCF1095 (2) (640x483).jpg
DSCF1095 (2) (640x483).jpg (154.91 KiB) Viewed 335 times
The wheels are formed in individual circular female moulds. In over 40 years of vac. forming I have never made wheels before so it was an interesting challenge. I don't have a lathe but made them using my bench pillar drill. With this system, if the pin is perfectly in the centre, the wheel will run true and the bore of the wheel can be adjusted by altering the diameter of the pin. The pins are basically axle material and the wheel hub shrinks onto the pin which gives a nice tight fit for the rear wheel. The pins need to be pulled out of each wheel after moulding.
The front wheels shown have had the screws bonded into the bore so they don't need a screwdriver when fitting the nyloc nut, now inside the steering king pin moulding ( the only 3d item on the car at present but I may change my mind)
The disadvantage of vac forming is the radius which is formed at the bottom of the pin, i.e. under the screw head on the front wheel which reduces the bearing length.

kiklo
Administrator
Posts: 296
Joined: Mon 9. Nov 2015 11:49
Location: Norway

Re: Wheels vacumforming.

Post by kiklo » Sun 20. Sep 2020 19:42

geek:

Thx for sharing Wes nice to learn from a pro.
Racing Regards

Kim K.

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