I don’t think you can make expanding foam balls in your garage that would work. You would need to encapsulate the pressurized polyurethane and seal it in something strong enough to withstand the gun launching it. Just loading marbles on the other hand…
I don’t think you can make expanding foam balls in your garage that would work. You would need to encapsulate the pressurized polyurethane and seal it in something strong enough to withstand the gun launching it. Just loading marbles on the other hand…
What’s a marbles flight trajectory? I feel like it’s a hateful knuckle ball with no spin