u/Delicious-Scene8551

Image 1 — I have this projectile launcher I am creating for my physics class. I need a lock knob according to my rubric to keep the launch locked at an angle so it won’t move. I’ve tried holes int the arc and using pins. I’m not allowed to use clamps. Help would be appreciated on how to keep it locked.

Image 2 — I have this projectile launcher I am creating for my physics class. I need a lock knob according to my rubric to keep the launch locked at an angle so it won’t move. I’ve tried holes int the arc and using pins. I’m not allowed to use clamps. Help would be appreciated on how to keep it locked.

Image 3 — I have this projectile launcher I am creating for my physics class. I need a lock knob according to my rubric to keep the launch locked at an angle so it won’t move. I’ve tried holes int the arc and using pins. I’m not allowed to use clamps. Help would be appreciated on how to keep it locked.

▲ 2 r/Woodworking_DIY

I have this projectile launcher I am creating for my physics class. I need a lock knob according to my rubric to keep the launch locked at an angle so it won’t move. I’ve tried holes int the arc and using pins. I’m not allowed to use clamps. Help would be appreciated on how to keep it locked.

u/Delicious-Scene8551 — 5 days ago

▲ 3 r/projects

I have this projectile launcher I am creating for my physics class. I need a lock knob according to my rubric to keep the launch locked at an angle so it won’t move. I’ve tried holes int the arc and using pins. I’m not allowed to use clamps. Help would be appreciated on how to keep it locked.

u/Delicious-Scene8551 — 5 days ago