I learned this when I was 4. We even had ones that shot sparks. America. The animations on this are really well done and I loved that trip back to childhood of pulling the car back and letting it rip. However, given the popularity, you should simulate what happens when you pull it back to the extremes over and over again and the spring gets stretched. It no longer kicks as fast as it used to and in some cases, it won't go at all.
How does a pull-back car work? Illustrated teardown
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Re: How does a pull-back car work? Illustrated teardown
#12What is the name for the sort of toy car you push in one direction and it continues slowly in that direction? These ones were usually styled as 4x4 vehicles and almost moved like a rock crawler with the 4wd set to low. They could be pushed forward or in reverse (and then would go in reverse).
Friction or flywheel car.
Re: How does a pull-back car work? Illustrated teardown
#13If you have access to a 3D printer, this helps explain the basics too: https://www.thingiverse.com/thing:3308710
Re: How does a pull-back car work? Illustrated teardown
#14Please leave my browser history alone
Re: How does a pull-back car work? Illustrated teardown
#15Wow. I love being reminded of stuff like this. Those cars were so cool. Edit: I took one of these cars apart as a kid to see how it worked. This site brought back a lot of memories. The little coil spring inside the gear. I have to get my hands on one of these now…
The original 80s Darda cars were great fun, with enough power to get around great big loops. One of those childhood toys I wish I'd took more care of and kept hold of...
They did still produce a version relatively recently (looks like they're discontinued entirely now?), but the cars were significantly lighter and less powerful, all-plastic where the originals had metal bodies
Re: How does a pull-back car work? Illustrated teardown
#16Wow. I love being reminded of stuff like this. Those cars were so cool. Edit: I took one of these cars apart as a kid to see how it worked. This site brought back a lot of memories. The little coil spring inside the gear. I have to get my hands on one of these now…
The original 80s Darda cars were great fun, with enough power to get around great big loops. One of those childhood toys I wish I'd took more care of and kept hold of... They did still produce a version relatively recently (looks like they're discontinued entirely now?), but the cars were significantly lighter and less powerful, all-plastic where the originals had metal bodies
I bought a Honda Civic toy from an auto parts store recently. I thought it was purely static but it has a spring pull back motion and also flashes the lights and honks the horn when you open the doors.
Then I leaned on it and discovered it makes a starting noise and vrooms the engine.
I felt like I was 10 years old again.
Re: How does a pull-back car work? Illustrated teardown
#17I really love this site, it is obivous that the owner puts a lot of effort into this
Much like https://ciechanow.ski/
Re: How does a pull-back car work? Illustrated teardown
#18If you have access to a 3D printer, this helps explain the basics too: https://www.thingiverse.com/thing:3308710
yes this print is great, I was very surprised by the performance of the 3d printed spring. I did end up putting rubber bands on the rear wheels to give them more grip.
Re: How does a pull-back car work? Illustrated teardown
#19I guess as a kid I only had access to the cheap ones? Would pull back, not knowing where to stop, and there was eventually a crunching noise. Then I'd worry I'd ruined the thing!
Re: How does a pull-back car work? Illustrated teardown
#20This really needs to be done for a GLP-1 auto injecting needle. Pretty sure it’s the same as an epi-pen as well. It blows my mind. It’s a disposable, single use device that at the press of button: 1. Inserts the needle in your skin, 2. Slowly presses the plunger until the dose is injected 3. Then retracts the needle with plunger Three distinct and seemingly opposing motions. With timing. All in a little plastic enclo…
When I was a kid I needed growth hormone shots. we used regular syringes that fit into this tan plastic "gun" thing. you pulled back the top into a locked position. placed the tip of the gun to the skin where the needle should inject, and pressed the trigger button to release the lock. can't remember if it also pushed the plunger though. this was back in the 90's.