Table Saw Miter Slot Runners
Great job. Very efficiently done. It looks very nice.
Two comments:
1) Safety: You may consider installing an acrylic or transparent plastic strip (2 to 4 in wide) longitudinally on top of both fences, just over the blade's line. Also adding a block to the back of the rear fence, just where the blade cuts in, to prevent putting your hands accidentally on the line of the blade.
2) Accuracy,--i.e. setting the rear fence at 90 degrees to the blade: As error is proportional to distance, the larger the test piece, the better. The 'flip-over' technique you used would be even better with a flat MDF or plywood rectangle or square, as large as your sled permits. Also you may try the '5 cuts' method to test accuracy, as done and lengthily explained by master craftsman William Ng in a Youtube video. All the best.
Table Saw Miter Slot Runners
UHMW Precision Milled Bar 3/4' X 3/8' X 36' For Jigs, Fixtures or Miter Slots (size 3/4' x 3/8'). Slick Durable Material Slides with Ease. Ideal for Table Saws, Router Table and Bandsaws (2 UHMW Bars) 4.4 out of 5 stars 364. Use this miter slot locking kit to lock custom jigs and fixtures in any t-slot groove. We found it quite handy to lock all types of featherboards onto table saws, router tables and band saws. The t-bar will fit any 3/4' x 3/8' miter t-slot groove or our Standard MITER-T-TRACK. The Fixture Kit includes: 2 ea. T-Slot Pieces; 2 ea.