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Showing results for tags 'half lap'.
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Often my student's cabinet projects needed half lapped panels to compartmentalize interior volumes. Even in drawers that needed dividers a half lap joint was the obvious way to intersect the parts. For some educational research credit I set about seeing if many classic woodworking joints could be made "better" using the CNC. This joint is one outcome of my explorations. My ramped halving joint slides together easily but closes up tight and snug. The tapered side of the slot on each side mates to the ramped face on the opposite side of the mating piece. The joint is kept aligned down the entire intersection. Both sides are done with the same toolpaths with the boards laying flat on the CNC bed. My blog post about it includes a link to Vectric's Forum where I posted a sample file you can download to inspect if you use VCarve or Aspire. https://4dfurniture.blogspot.com/2022/10/tapered-halving-joint.html 4D
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- panel joinery
- halving joint
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Decided to at least get a plywood panel cut for it to sit on...and figure out how big the stand will be. 3/4" plywood, left outside, leaning against the house on the back patio...FREE WOOD! Needed a quick way to cut a chunk off...framing square and a black sharpie to mark a cut line...then the saw.. No problem. ( used this again, later) 6-1/2" blade seems to be still sharp. When the roofers were cutting on the sheet..they left a big tear-out....so, I trimmed back to that spot...Later, I went back to that sheet, and cut a second panel off of it. More on that, later. Worked out how to cut those 2 x 4s to the sizes I could use..needed 4 legs, 2 front braces, and 2 side braces...That was done. Did NOT like the rounded over edges..so, rip fence was set up to peel that edge off.. To make laying out half lap joints a bit easier to do. Then, the cutting began? Not quite...remember that second plywood panel? Also ripped to match the width of the Pine parts...these will be the lower braces.. Now, to get a half lap joint, I need to remove a bit of lumber... And this is the quickest way, IF you have a lot to do. Set the blade height to the halfway point...run the board through, using the fence as a stop block Then, bring it back to the bench vise.. Mallet to break as much out,as I can...then a chisel to pare it flat... This one is for the lower brace... Dry fit? 2 legs done...side notches for the side stretchers and braces...had to keep double checking, to make sure they were all on the correct sides.. Then the other 2 legs..Narrow part will be either the front or back of the stand... And the matching parts, done...I'm pooped.... Will try to assemble this mess...tomorrow...I'm done for today Assemble with glue and screws..and a big square... How messy was today? This was just from knocking all the chips free, and a bit of paring...Tablesaw? Yep, just from today...might have been a tad busy "Clean up, Aisle No. 2!" Stay tuned..
