I have made quite a few 3D models and all of them are available for free download. THis page will let you see them all: http://www.thingiverse.com/bbinnard/designs
They are also available from the other 2 sites shown on the blog page: https://birkbinnard.com/blog/object-downloads/
Most of my models are fairly large and have a lengthy print time. Some of them may be too large (usually to tall) for your particular printer. If that is the case you can try scaling them down, but depending on the actual design this may or may not result in a printable part.