19mm (3/4") T-Track Micro Adjustable Stop Block

This is a flush T-Track insert for 19mm x 9.5mm (¾" x 3/8") T-Track with a micro adjustment for fine tuning cuts. The stop is print in place and the screw is printed separately for strength but it also allows the use of a metal M6x1 screw to be used if the user so desired. I have both the plastic screw and metal screw in use, and so far they have both been great. 

The print in place hinge is printed rather tight as I wanted to limit the amount of deflection. If you find you can not break the hinge free by hand, use a soft jaw vise to hold one end, I did and the hinge works wonderfully. 

You will need a M6x1 socket cap bolt or button head bolt that is 50mm in length with a head diameter no larger than 12mm by 3 mm and at least two M6 nuts. You can use the printed bolt as a guide to cut the bolt in the correct place and you will need to cut the head of the bolt to a length of 9.5mm or to the height of the track that you have - mine is flat at the bottom, but other tracks may be thicker than mine. I would also recommend rounding the bottom of the locking bolt as to minimize damage to the track. The nut needs to be 10mm from flat to flat and 4 mm thick. 

I would recommend running a M6x1 tap through the adjustment nut, mostly everything is printed at a 0.12mm layer height but with shrinkage, the threads could bind a bit; the screw threads are printed at 0.08mm for better thread formation and strength. 

There are supports in several places, those are printed in the same material and should not be difficult to remove. 

I have printed many of these while prototyping both in BBL PLA and PETG. 

This little stop can be very useful at a mitre station, or router table, even on some mitre gauges for the table saw. 

If there is enough interest, I can modify the model to accommodate SAE hardware, just let me know.