Turning off BT3*00 from left side; another view

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  • cwithboat
    Senior Member
    • Jan 2008
    • 614
    • 47deg54.3'N 122deg34.7'W
    • Craftsman Pro 21829

    Turning off BT3*00 from left side; another view

    After reading Ed62’s article I was invigorated. During my first use of my new 21829, I felt the need for left side turn off and Ed had supplied an answer. I sat before my saw and considered Ed’s solution. Good, but I thought I saw another approach. I wanted a switch that could be easily added or removed, one that interfered with saw function to a minimal extent and one that could be adjusted to eliminate any slop in my construction efforts. (This is important; I received my training as an electrical engineer. Forced to take an entry level mechanical engineering course (ME101) I flew through the statics part and barely escaped after dynamics). Besides, I didn’t have any PVC pipe in my shop.

    Fortunately Sears (read Ryobi) has provided a plethora of opportunities for customization. Notably, in this case, the one inch T-channel on the bottom of the front rail. By attaching a hinge to a slide inserted in this channel I was able to construct a cutoff switch, which met my requirements. I selected a piano hinge because it could be mounted flush to the slide and the dimensions were appropriate for the narrow slide. To the hinge I mounted two pieces of aluminum, one to carry a bolt used as a finger to push the switch and another to aid in support of a bar for throwing the switch to turn off the saw. A long, but narrow, push bar was added attached to the aluminum supports. Job done, all else is details.

    Slide 1”x 1/8” x 4” steel
    Hinge 1 1/16” x 30”
    Support 6” x 3” x 1/8” Aluminum
    Support 3” x 3 “ x 1/8 Aluminum
    Push Bar 6’ x 2” x 1/2” walnut (or what you have)
    Hardware #10-32 x 3/8” screws, nuts and washers (used as spacers)
    Clamp screws (2) 5/16”
    Finger 3” x ¼” bolt + nut and plastic end cap

    # 10-32 Die
    5/16 Die
    Drill or drill press, drill bits
    Hacksaw (for steel)
    Jig saw (for Aluminum)
    File (to smooth edges of metal)

    For photos and AL plate dimensions (too large a format for this site); email cwithboat@yahoo.com
    Last edited by cwithboat; 01-13-2008, 04:26 PM.
    A woman is only a woman, but a good cigar is a smoke.
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