GoldenGears GT2 Belt Tensioner

thingiverse

This is a new spin on the issue of belt tension for delta printers, mainly Kossel type designs (but may work for most). As shown in the picture it attaches using the normal bolt and attachment spot for the original location of the pulley (normally on the top, but on my new printer design it is on the bottom). This design basically lowers (or in my case raises) the position of the pulley based on the length allowed by the two M3 screws mounting the two pieces. obviously you can make the M3 screw shorter or longer to add more or less adjustment flexibility, but keep in mind of you make it to long you will lose build height. (basically if you have it mounted on the top don't make it drop any lower than the bottom of your endstop mount. If you are interested in my new concept of the kossel (which I have named the Kossel Flip let me know, and I will try and speed up posting it for all to see.