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About Isaac

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    Journeyman Poster

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    Furniture, Hobbyist, Practical, cabinetry, turning,

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  1. Isaac

    Wood ID Flow Chart.

    Yeah I agree, it really needs some accompanying photos or literature. Also pores might not be the best characteristic to use in all cases. If you are just considering domestic hardwoods, surely color and open/closed grain are useful traits when separating hard maple from walnut...
  2. Isaac

    sketching a simple woodworking bench

    1" tenon with a 1/2" lag screw hole will not be very strong, as you aren't leaving much material at the end of the tenon at all. 2" would be much better. Work benches tend to be subjected to a lot of thrusting forces, from things like pounding and planing. They are not just static shelves. Those thrusting forces make the bench want to distort into a parallelogram. Using a single metal bolt or screw presents a problem, because the only thing you have resisting that distortion is friction to stop it from rotating, like a pivot point. Wood expands and contracts with changes in temperature and humidity. This will result in varying degrees of tightness of your fasteners, and can even cause them to slowly work themselves loose. Using two or more bolts at each connection will reduce the rotation tendency. Still, a snug fit, with glue, would be a better, long term solution. Anyways, it feels like you keep asking the same question and everyone is telling you they don't recommend bolts. If you can make the mortise, why do you keep wanting to add bolts to the equation? If you really want this thing to be able to be broken down, there are additional options, but those methods generally require even more precision and skill in installation.
  3. Isaac

    So this happened today... New SawStop.

    Good to know. Personally, I will still do my best to keep trips to a minimum.
  4. Isaac

    sketching a simple woodworking bench

    It’s a matter of degree. With your approach, you have to cut the mortise the exact depth you desire and you have to be certain no debris or excess glue gets to the bottom. If it does, that debris and glue will have no where to go when the tenon is inserted and your tenon might wind up inserted 1/16 or 1/32 less than desired. I think most would prefer the mortise be slightly deeper and use the shoulders to ensure the distance from face to face is the same on multiple pieces throughout the project. @wtnhighlander made the same case in another post on this same thread if you’d like to see another explanation.
  5. Isaac

    sketching a simple woodworking bench

    Sounds reasonable. Keep in mind some joints are stressed much more than others. For example, the joints of wooden chair can be quite demanding. Others are low stress, and a wide variety of options will likely suffice,
  6. Isaac

    sketching a simple woodworking bench

    Well, the mortise depth certainly controls the max you can insert the tenon. Unless you push extra extra hard!!! But that approach requires precision in cutting your mortise depth, which is a little tricky, since it is concealed. Also, it is easy to accidentally install a tenon only 98% of the way in. With shoulders you have a clear visual cue telling you if the tenon is fully inserted or not. That is all I was really getting at.
  7. Isaac

    sketching a simple woodworking bench

    well, this is a bench, so perhaps the precision isn't quite as critical. I'm just saying the shoulders serve as a stop. Relying on the depth of the mortise is just not as precise, in my opinion. In particular, once you add some glue, it is easy to have the tenon not quite fully inserted.
  8. Isaac

    sketching a simple woodworking bench

    I agree, and perhaps I wasn’t clear, or I might have misunderstood Gee dubs point. I believe he was arguing in favor of keeping the little 1/4” or so shoulders on top and bottom. I’m just thinking if the tenon was full width, without those little shoulders, it would have a negligible impact, and might be even stronger. If you get rid of all four shoulders, you lose the ability to control the depth of the installation.
  9. Isaac

    So this happened today... New SawStop.

    Yeah. I mean if you watch closely on the demo videos, the entire saw jumps around. We all know these are big heavy machines, so that is a lot of energy. Actually the break pretty much destroys the blade, I think that is a guarantee. As far as I know, no one expects to re-use the break or blade after the mechanism goes off. It looks like this,after all: Just to be clear here, I'm a Sawstop owner, so not trying to rip on them at all. One thing I loved, that others have also mentioned, was just how clear the instructions were on setting up my jobsite saw. Big bright colorful pictures, and everything was very well packaged. A+ presentation.
  10. Isaac

    So this happened today... New SawStop.

    You also have to replace the saw blade, of course. Plus the entire process is pretty jarring. A lot of force is required to stop the blade that quickly. Not the sort of thing I'd want to subject any machine to multiple times, if it can be avoided.
  11. Isaac

    sketching a simple woodworking bench

    As a structural engineer, I'm not 100% sold on this. Wood doesn't have a whole lot of crushing strength across grain to begin with, not sure how much that crushing strength is providing. Using a full width tenon maximizes your distance between the extreme tension and compression faces, which tends to be ideal for bending (the same reasons I-beam shapes are more efficient than rectangles for bending). Even with a full width tenon, you still have the two side shoulders, right? Unless you are talking above a giant mortise that accepts the entire incoming piece without any shoulders at all. Not saying you are wrong, but just something I'd love to see some tests on.
  12. Isaac

    I love this book

    I picked up a copy of Mike P's book and am also enjoying it. His style/tastes seems to mirror my own, so I find I get a lot of inspiration and ideas that I'd like to put to work when seeing his pieces.
  13. Isaac

    Coffee table for my nephew

    I agree. I think the construction and finish on this piece exceeds that of the piece which served as inspiration. This would be at home in a FWW magazine spread.
  14. Isaac

    Chop Saw Miter Saw Bench

    Marc has a guild project for this. Detailed plans and instructional videos are provided.
  15. Isaac

    Coffee table for my nephew

    I hope your nephew appreciates what he’s getting here. Last year I made a coffee table for a friend and he actually selected the very same table design, but after pondering it, I politely declined that design as I just wasn’t confident I could pull it off. I really appreciate seeing your approach to the challenges here.