Hello Everyone. Unfortunately the cost of the aluminum parts and freight to receive them has gone up and I had to increase the aluminum parts kits prices by $30 which is the last thing I wanted to do as my goal has always been to keep the cost of this project as low as possible. To help offset this I have added the CAD models package to now be included with the price of the combo kit. I hope this helps and I am very sorry about the price increase. I have also added all the 2D part models on the downloads page.