Make an adjustable miter bar Some tablesaw jigs, such as cutoff sleds, ride in the saw's miter slots, and a well-fitting miter bar keeps these jigs accurate. You can make your own miter bar out of hardwood, but it's tricky to get—and maintain—that good fit. This is the second video of a short series in which I build a homemade table saw. This time, I make the miter slots in the table. The rest of the videos in this homemade table saw series: 1. Now, lay the runner in the mitre gauge slot (left of blade), and lower the saw blade all the way below the table. You should have a really snug fit with no 'play' in any direction. Check to see that the surface of the sled is in full contact with the saw table, if it isn’t, the runner it.
Table Saw Miter Slot Bars
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.