This is a super cool project and I will definitely be buying one. However, I've been burned too many times on Kickstarter hardware projects (most spectacular loss was the Lily Camera) - nowadays I just pay the premium for a guaranteed shipping date. Some companies like Glowforge actually handled multiple delivery delays quite well, and raised venture capital so they wouldn't have to touch Kickstarter funds for overhead costs.

Excited to follow your project and eventually have one sitting in my workshop!