Article: Reinvent the wheel, because if you just mount whatever wheels fit the axle they will inevitably work poorly for your purposes.
Wheels work just fine. Choose the best wheel from those available and tweak it as desired. Test it to make sure it doesn't shatter under too much weight. Apply and move on.
This pervading notion of "if you don't understand you shouldn't do it" is silly. Sure it is nice to understand, but it doesn't put food on the table. Sometimes it's just handy to use the gun as is and go shoot your dinner in the woods. You don't need to understand the formulation of gunpowder or rifling in order to use a gun properly for it's intended use.
Wheels work just fine. Choose the best wheel from those available and tweak it as desired. Test it to make sure it doesn't shatter under too much weight. Apply and move on.
This pervading notion of "if you don't understand you shouldn't do it" is silly. Sure it is nice to understand, but it doesn't put food on the table. Sometimes it's just handy to use the gun as is and go shoot your dinner in the woods. You don't need to understand the formulation of gunpowder or rifling in order to use a gun properly for it's intended use.