 You've done the William Ng five cuts and found out your crosscut sled is not so perfect How can you use some painter's tape for a temporary fix? Hold on woodworkers Paul crossing here small workshop guy I Had made this stumpy nubs crosscut sled And it's called a mega crosscut sled because it has a lot of jigs that you can put on it for different things I made it for our contractor saw that I had earlier, but I got rid of well, of course when I got the saw stop the miters Was not the same spacing so I had to fool around with the sled or removing the sliders underneath Well as a result or maybe when I originally built it maybe I didn't have it very accurate So I did the five-cut method and found out that I was off more than I wanted to be but I Don't want to stop right now and build a new sled, which I am going to do Because I've got some design ideas that I want to implement So I just I want to use this on a project And I need it right away. And so I need to get a quick fix Well turns out that I have Pin this down and glued it down And I'm not going to be able to take things out and do an adjustment back and forth with my back fence here so I have a solution I like to demonstrate and That is to use some blue tape. I'm going to make this board exactly the same size of another board I'm going to do one with a five-cut method See how I'm off Make an adjustment with some painter's tape and then do another cut and see how that comes out Okay to do this I've got two boards that are very close Scared me there for a minute. They're very close in size And so I'm going to use those for my test. I'm going to mark them both with On the sides here. I'm going to mark this side one and then I'm going to rotate it Clockwise so this will be side two. This would be side three This would be side four and then I'm going to come back here and this would be side five So I'm going to do the same thing here one two three four and five so let's do the first one with the normal five-cut method and See how far off this sled is as it's currently set up the last Piece which is hopefully about an inch or so the top was and what the bottom was so I haven't moved this piece yet so I'm going to mark this as a and This down here as B for bottom. So a The top part is point nine. So now let's measure B I've got point nine three So B narrow versus a I'm not going to do the William Ng mathematics here More narrow have to move The way you would normally do this is you would move this edge of the table Back toward you If it was a negative number meaning a was smaller than B Then you use it. You'd put your table forward this is It's not that difficult really and would take my difference here. He would divide it by four He would divide it by the length of this cut and that would give me the error per inch And then if he was going to adjust the fence he would multiply that times the distance between his pivot point and Where he's going to do the adjustment? Well, I can't adjust my fence so I'm not going to do that so I want to have this be the same result as if I Had moved the fence back. Well To move the fence back something that I can do is put a piece of painter's tape Right here and that essentially as move my fence if you will Painters tape if you want to take your painter's tape and measure it Just measure some sort of a board for thickness then cut off ten pieces of tape Put it on top of that board and then see what the difference is between your earlier measurement and then that Would be the width of those ten pieces divide that by ten and that's the width of each piece I find that each piece of my painter's tape is about 0.004 Meaning four one thousandths of an inch So but I'm not going to worry about that. I'm just going to do a little trial and error All right, so I'm going to take two pieces of tape. I'm going to put them just left of where Perf is and so there's one piece and I'm going to do a second piece Which instead of moving this back. I'm moving the center here forward I'm just doing trial and error. So now we're going to do the five-cut method with that tape on there And let's see what we get. So here's the other board The only thing that's going to happen here is each time I put it up against this fence It's going to be pushed out just ever ever so slightly. So when I'm all done a Would be narrower in comparison to be that it was before and that's what we walked because it was too wide now if your Fence was off and you were going to go the other way that you put some tape over here That would be the same as pushing it out there. The only problem with that one is Then if your work piece doesn't go all the way over there to utilize that Then you're going to have your original measurements Let's take our calipers and see in this case two pieces of tape we should be about point position and so for a I get point nine five one five and for B point nine three four five Now I'm getting a different still point zero one seven Zero versus point zero four nine five So I got closer Like I'll have to decide if that's close enough for me But the point is if you want to keep trial and error Put on a piece of tape Put on two more take one off Play with it right here. It's a lot simpler than unscrewing now again I'm going to I'm going to recommend that you build a new sled and do it in a way that you can adjust the Fence according to the William Ng method. That's what I'm going to do But like I said, I just want to fix this one temporarily to be a little bit more accurate