I'm still using my third sacrificial strip and have over a dozen left.Ĭareful attention to the above three items should result in perfect box joints, if you are careful to position the work over the pins of the jig for each cut. I bought my I-Box jig right after they first became available and I use it frequently. I keep a few with the jig and the rest in a shop cabinet for when I might need them. It took be less than an hour to make probably a lifetime supply of sacrificial strips for my I-Box jig. Now countersink the four holes from the smoother side of of each piece. Then remove the drill bit and stops and replace the bit with a countersink bit. Then rotate the piece end for end and do the same for the other two holes.
Then flip the piece over and drill the second hole. Cut them to the size of the original and then set up your drill press with stops to make the first hole.
#INCRA IBOX PLUS#
Incra charges $10 plus shipping for 3 of these, and for about $5 you can buy a 2' X 4' piece of 1/4" MDF from Home Depot to make a whole bunch of spares. Only practice and experience will tell you when it's right, and it's slightly different when using different materials.īefore you use up your included first sacrificial strip, use it as a pattern to make more for spares. Don't get the joint too tight or you may need a hammer to put it together after you add the glue and the wood swells. Only move the red knob very slightly to correct for a slightly loose or too tight joint. Never move the silver knob after you have the KISS adjustment correct. I prefer using my Unisaw with my I-Box jig because of this. If using the jig on a router table you really need a sacrificial strip on both sides of the joint being cut, one in the jig and a second clamped tightly behind the piece being cut, because the router bit cuts in both directions during each pass. The sacrificial strip can be slid left or right for a new position, or even turned over and the top edge used, before you will need to replace it. If you make a blade height change or adjust the jig in any way, then use a new position of the sacrificial strip before beginning to cut the joint again. Don't forget to loosen the lock knob on the top of the jig before making an adjustment and then tighten it again after making the adjustment.įor clean cuts, use a fresh position of the sacrificial strip before beginning to make your joints. 2) The KISS adjustment must be performed very carefully so as to touch the blade tooth, but not deflect it at all.
The two most important things that need to be set perfectly on the jig are 1) The miter bar of the jig must fit perfectly in the miter slot of the saw, loose enough to slide easily, but with no side play and no rattle at all. It doesn't cut the joint quite as clean as the square tooth kerf of the first two blades, but on larger box joint patterns, this isn't quite as noticeable after assembly. I used my Freud dado blade set once with my I-Box jig when I wanted 3/4" joints. The square tooth profile is especially important when doing smaller box joints. It's kerf is 0.126, so very close to 1/8" that I use occasionally.
#INCRA IBOX FULL#
I have a Freud full kerf rip blade that also has the square tooth profile. I use a Freud SBOX8 blade set most of the time with my I-Box jig to make 1/4 & 3/8" joints. When you get it done "right", it's easy to use and does work great. I think now that it might be a good idea to initially use it the first time with the saw in "safe" mode.
After getting it adjusted to where you think it's ready to use, make absolutely certain of clearances on every side before using it. Remember, "Kissing to closely" (somehow I remember hearing that before I bought my first table saw) can be costly to the tune of about $89 each time the brake is activated (don't ask me how I now). Also, if you're using it on a Sawstop make certain ALL adjustments having anything to do with 'Kissing" the blade are perfect. As I finally came to realize, the instructions must be followed to a "T" especially centering the piece on the left hand side of the red knob. I'm probably lying in that I just walked away disgusted from it the first couple of times I tried setting it up.
I also went through the "miseries" when putting this whole thing together the first time. The single most important of the process is of course, the initial setup. I agree with all of the previous statements.
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