Well here is a follow up of the last Join it video. I know that in doing these videos I will more than likely forget something and I have my wonderful viewers to help me remember what it was that I forgot. I decided to get this done as soon as I got home from work. Here, I go over some of the big things that my viewers wanted to know more about. Why I use the 1/8” spacer, how to clear out the middle joint face with a much faster method and how to make the joint using two different widths of stock.
Let’s begin with the first question as to why I use the 1/8” spacer. It’s simple, a full kerf blade is 1/8” thick. I use the spacer to move the stock to the correct side of the blade in order not to over cut the joint by that much. In my previous video, I accidentally over cut by the tiniest bit.
You will need two pieces of dimensional lumber to the thickness and width of your choosing. You will also need a tape measure, clamp, stop blocks, flat bottom bevel blade for your table saw and either brass height bars or a digital height gauge.
Next I addressed how to set up the stock for each different thickness. Using the same methods as before it is just a simple changing of the stop block. Once you cut the first half lap notch, remove the spacer and stock and reposition them opposite of the previous set up. Make sure you accommodate the appropriate distance away from the blade if you choose an overhang. Then replace the stop block and spacer so you can cut the new half lap. Works great!!!
Now to address the last question. How to hog out the material in a faster way than making numerous kerf cuts. This is a finesse method that needs to be taken with very little bites to ensure that your blade can handle the side to side movement. If you use hardwood then you might want to take it even slower with smaller bites. Burning may occur and the risk of kick back is always present so be extra cautious.
Begin by moving the stock into the blade to the point that your blade begins to take away material. Then stop the advancement forward and begin your side to side motion. Using a stop block at either end will take the guess work out of it, but remember to use the 1/8” spacer to keep the blade on the correct side of the kerf. The other stop block does not need it. Advance slowly making numerous passes until the you reach the other side.
Now test the fit and celebrate when you complete it!
Thank you taking the time to read my instructional blog and I hope you get your questions answered. Remember if there is knowledge that you have that you feel others should know, then pay it forward and share the knowledge. Be safe in your shop and I will see you next time on the next build. BOOM!!!