You can check out my other puzzle designs at https://www.thingiverse.com/SOS1/designs most of which are for sale on my Etsy Shop, ShantisDesigns, at https://www.etsy.com/shop/ShantisDesigns. So, if you want to add this puzzle to your collection, but do not have a 3d printer, stickers, or just don't feel like assembling it yourself, then please visit my shop. And, if there is a puzzle on my Thingiverse page that you don’t see on my shop that you are interested in purchasing, just send me a message and I will put it up there for you to purchase.
This puzzle is a half-proportional 3x3x7 fisher cube. It is a modification based off a 3x3, and I added a few extra cuts and extended some pieces out.
You will need six M3 screws 16mm long. Lastly, if you want to sticker like I did, then you can purchase standard Fisher Cube stickers fromhttps://www.thecubicle.com/. I bought two of the side 1 stickers (white and yellow) for the top and bottom of the puzzle. Then I also bought eight of the side 2 stickers (2 red, 2 blue, 2 orange, and 2 green) for the sides of the puzzle. For the inner and lower edge and corner pieces you will have to cut some of the side 2 stickers into thirds. This process only requires an x-acto knife and ruler. I measured the side 2 stickers height to be 15mm, so to cut that into thirds go down 5mm and cut across. Then I used the x-acto knife to round off the corner, which makes it look nicer.
For the TopCenter and TopCenterCap pieces print off 2 of each, and for the MiddleCenter, MiddleCenterCap, and MiddleEdge pieces print off 4 of each. Then for the LowerEdge, InnerEdge, TopEdge, LowerCorner, InnerCorner, and TopCorner pieces print off 8 of each.
After printing all the pieces, you can assemble the puzzle and it will work, but if you want to improve the turning take the time to sand each piece. It will make the puzzle turn smoother and catch less.