Tormach TTS tool tightener

thingiverse

This is a Tormach tool tightening system that attaches directly to the table. It employs two one-way needle bearings, one for tightening and one for loosening the collet nut. The design isn't necessarily a 3D printed project, except for the bearing cover, which is created using this method. The system consists of a 3 x 4 x .75 inch piece of aluminum. Four 1/2 inch holes were drilled into it, followed by boring out four bearing holes to exactly .998 inches in diameter. To achieve the desired press fit, the bore offset was gradually increased until it reached the required specification. For efficiency, using a reamer would be preferable. However, this wasn't necessary for achieving the needed precision. It's crucial that one bearing is placed opposite another before both are pressed into position. This ensures proper alignment and functionality of the tool tightening system. The bearings used in this design can be sourced from eBay at approximately $7 each. The one depicted in the drawing, however, comes with a higher price tag. Mounting the system requires two 1/2 inch 1.5 bolts secured to t-nuts. Fusion 360 users can access the file here: https://a360.co/2TkrfWi This tool tightening system may prove useful for others in similar situations.