Spiral Marble Run

I've built numerous kits before. I'm in the middle of trying to get the "crankshaft assembly" to work smoothly. There are a few areas where the "push rods" bind and prevent the up and down motion. Otherwise, I'm excited about completing the kit and getting everything to work.

This was a bit of a challenge but very doable. Around 30 hours to complete. .

Great Model. Well designed and works great. Also Great company support that stands behind their products..