I designed this wanting a good case that would match my set of caliper's case. It should be the correct size for a new X-acto knife with replacement blade bought from Walmart. As said in the title, it is 146 mm in length and 7 mm to suffice for a close to 7 mm diameter of the blade handle. It has a box cover but not on the ends so that it is easy to remove and so that it fit in my bed.
You may have noticed that I changed my printer to a mp voxel. I finally sold my mp select mini and am so happy. Just to brag on monoprice, I highly recommend the Voxel. It is a great printer.
I am still working on the design, so tell me if something is wrong, please.
Sorry, there is a slight glitch to where you cannot use the "thingiview" button. I have reloaded the file multiple times and still nothing happens. I can assure you, though, that the file you will download will work perfectly.
If you would like to see my other designs go here:
I used Tinkercad to design this and my helpful set of calipers (: