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John Page

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John Page last won the day on May 10 2018

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About John Page

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  • Birthday May 11

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    http://shardsofthedarkage.blogspot.com/

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    Male
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    Half way between somewhere and nowhere
  • Interests
    Bladesmithing, blacksmithing, Norse mythology, archery, cartography, woodworking

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  1. John Page

    Cutting Bevels with a Bandsaw is it possible?

    For cutting metal, absolutely. But you will need to adjust the feed rate of the band appropriate to the metal you're cutting. See the below chart and if your saw is capable of doing this: Saw Blade Feed/TPI Chart For cutting bevels? Maybe. But why? Not saying it's impossible, but it would be time and labour intensive and I would be very surprised if you achieved a result that was worth the effort. To illustrate the effect, try it out with a piece of wood the same size as the steel you'd be using. On pieces that thin, there is probably a prohibitive amount of deflection in either the bar, the blade, or the way you feed it. The surface you achieve as a result of sawing 2 or 4 bevels (1 or 2 edge) on a bar that is already fairly thin will be more and more difficult as you cut more angles on it. Is the intent to have a finish that is easier to grind after cutting? While there is no scale buildup on the saw method, I could probably get a more even finish out of the forge with a much lower time investment. But, if you want to give it a try, maybe it'll be a surprise for the better
  2. John Page

    Which hammer for me?

    How deep is the thing you plan on clamping to? Less than 3", at least for me, is not generally any use. I have a few 6", 8", and 12" clamps, but I mostly use the 6 or 8. The closer the size of the clamp to all the things being clamped together (bench, sanding block, blade, handles, backing blocks to drill through, etc.) the less cumbersome it usually is, but if you don't leave much clearance, you'll find you always need just a little more room between the jaw and foot than you thought. On some benches, I've had to clamp to only 1/2" of plywood, but on others, the entire 4" of wood, the plywood, and then the project. A lot of variance, but in the end you can never have too many clamps, so I that's just a long way of saying a variety of sizes is best
  3. John Page

    Which hammer for me?

    Also on the vice note, you can probably find a used one for surprisingly cheap. I'd just watch out for any fixes on it (welding things back together, rethreading, that sort of thing) that might be on older tools. Not necessarily a problem, but things that are designed to take larger amounts of tension loading (screw, corresponding outward shear on the jaws when clamping) don't take well to being fixed. If you do decide to go with clamps over a vice to start with (or in addition to), and you don't have them already, it might not be as large a price difference as you'd expect. Either way, a good old all metal C Clamp will do a lot for you. Good amount of torque and fairly indestructible. Those ratcheting bar clamps are good for smaller work, but I've stripped the thin knurling on the back of the bar on almost all of mine over time.
  4. John Page

    Which hammer for me?

    Regular clamps work for a lot of things, provided you have something to clamp stuff to (workbench) and sometimes work better than a vice. Again, it depends a lot on what you are intending to do/make. A post vice is a specialised vice that supports the jaws with a leg that extends all the way to the ground, so you can hammer on things clamped in it. Extremely useful, if that's the work you're doing. But for a lot of shops, not at all necessary. I would avoid, however, hammering on a machinist's vice that bolts to the workbench because they are not typically designed for that sort of stress. I for one would get one, but if it's an expense you are worried about, I'd say start with regular old clamps and see if it's something you need. The operations I would foresee you needing the vice for, such as polishing blades or holding things while drilling/gluing, can all certainly be done by clamping the piece to another work surface.
  5. John Page

    Which hammer for me?

    For hammers, as long as it isn't huge and doesn't have a fibreglass/metal handle, you'll probably be fine. I started with a 1,5lb Swedish pattern hammer from blacksmith's deopt and I still use it fairly often. Great weight to handle length ratio, but for most rough forging these days I use something larger. No sense in going crazy and getting something that would in other places be considered a sledge hammer. The heavier it is, at least starting out, the more you might build up bad habits as far as grip, swing, and other ergonomics that can have compounding health issues after a while. Angle grinders don't need to be anything fancy. I've had the same non-name brand grinder for over 10 years and have never had any problems with the things I need it to do. Depends on how you intend on using it though. For the odd job, almost anything will be fine. But if you need to use it like a chop saw, maybe reconsider. In general, one of the easiest things to do starting out is to keep waiting for the perfect tool or workshop or opportunity, but it is learning to work with what you have and have access to which builds up resilience to things that don't go according to plan. I for one say, if the tools are what are stopping you from getting started, just get what you can and go for it! Because you can get into this craft with a hole in the ground for a forge, birdseed bags and a scrap of metal pipe for bellows, and a rock for a hammer, the barrier to entry is fairly primeval. Not saying that is preferred, only that the rest is mostly just convenience But, welcome aboard, and hope you get situated with what works best for you! John
  6. John Page

    More interesting stuff from the steel nerds

    After a little digesting, and looking more closely into the examinations in the later portion, I wonder how much of a difference normalizing has on those results. It sounds like all of the grain related data is taking the samples as-is and hardening without any sort of thermocycling. It would be understandable that the cold rolled v. hot rolled grain size would therefore influence the post-hardening properties (why we normalize in the first place) but I'm not entirely sure if the summary explanation of the results is what I think it is. Some of the questions I have would be easily answered if I had a description of the process from which the test results came from, but I'll have to try and track down some of the references they cited and see if they explain any of the experiments in that sort of detail. Also, I wonder what the difference in post-hardening/tempering performance is between cold forging, normalizing, and both normalizing and cold forging. I'm guessing there is some sort of hard evidence to suggest which is the best (raw performance, economy, risk of material failure, etc.) but I think it depends a lot on materials. As they mention, the introduction of carbides and alloys which can pin dislocations significantly changes how much and how effective cold forging works with the lattice, so maybe the generic answer is not as all inclusive as it might seem. Even a 'simple' jacketing of hard/soft metals (note the bit at the end about the Japanese techniques) could completely change what's happening at the microscopic level. In any event, a great thought provoking article! I'm excited to run down the rabbit hole of what else they have posted there!
  7. John Page

    More interesting stuff from the steel nerds

    Never seen that site before, but wow! Great stuff, thanks for posting that! Lots of great info there that'll take some time to digest
  8. John Page

    Okay yes this is going to be a DUMB question

    Andy, Take a look at the dies on the Blacksmiths Depot for a sense of the geometry you're looking for. I've used a set of 3/8" round fullers to set shoulders, then using the edge of the anvil and hammer control to forge the actual tang. You can get relatively sharp corners this way, and it leaves a slight radius at the junction which helps with preventing the nucleation of cracks as you work. That can be taken care of later with files or the belt sander in a minute or two if you really want sharp corners in there. Even with the 3/8" radius however, I can use it as a guillotine on smaller stock. If I remember right, you have a bar of mild, right? I would be very surprised if you would be able to use that long term as a hot cutter. The current geometry will round over, and anything steeper would deform almost immediately. Not to say it won't work for a little while, but I think you would be better suited to round over the points into fullering dies, assuming the bottom die would still be long enough to sit above the lower edge of the magician (even then you could add a spacer underneath). To make a set of the round fullering dies, I would have started almost exactly as you have done already and do as has been mentioned above and just round them over. No need to panic! John
  9. John Page

    12th Annual Fire and Brimstone Hammer-In

    Got it working, thanks!
  10. John Page

    12th Annual Fire and Brimstone Hammer-In

    Kerry, Hoping to be able to make it out this year. I was trying to get onto the site but I keep getting an error message. Wanted to throw my name into the mix before it's too late. John
  11. John Page

    The Birth of a Workshop

    The stairs things is more a problem with a combination of dimensions rather than any single specific measurement. The angle of the roof for the overhead clearance, the width, and the height all combined in the space I'm trying to stick it in along with the minimum landing requirements (had to have a 90 degree bend in it) mean something has to give. Instead of having a stair stick out into the room (because of the 10" tread depth) I adjusted the step height and floor depth to make it so the last stair is more or less flush with the wall. Looked around a bit with some wall systems and it's impressive what they've come up with since the days of simple roll infills. I'll definitely be using some sort of composite wall on the outside of the stacked timbers, then with another wood cladding over the outside. I'm at a standstill engineering wise until a building site is located. Hopefully if the cards fall right, I'll be out in NH the end of next week looking at various places. Site surveys will be a bit challenging though with all the wintery weather happening over there recently. Here's a screenshot of the earlier progress at removing the horizontal stacked ring. Since this was taken, I've done some more cleaning up the remaining line segments around the common rafters and have started a few configurations for windows, being horizontal and vertical rectangles, as well as reconfiguring the common rafter segments to reduce the need for secondary rafterlike purlins. The direction I'm inclined to pursue is having two on the bottom half of each face, plus one in the middle for the top part. It'd mean having to add a second band around the circumference of the roof, but not a huge deal. Getting the proportions right might be tricky along with the safe free spanning loading, but if that's the hardest part of this I'd be surprised!
  12. John Page

    The Birth of a Workshop

    One last thing- forgot to mention that I redesigned the hot shop rafters (again) to lighten the frame a bit. After some sensible and firm recommendations, I removed the horizontal ring that intermeshed with the hammer beams. It required reconfiguring the hammer beams a little to make them handle the loads differently, but it turns out that the spreading absorbed by the horizontal ring was considerably less than I thought, especially with the whole point of the hammer beams being to turn spreading loads at the tops of walls into torsional loads in the bottoms of the walls (there being thick masonry that can withstand the forces). I'll get some screenshots up in the next few days as well as of the gable end situation.
  13. John Page

    The Birth of a Workshop

    This! After a few more models sent back and forth, this is almost exactly the solution I'm at now. Originally I wanted to have some sort of opening (separated by glass for containment purposes) between the woodshop and the hot shop, but after the headache of joining the two roof planes and how much wasted space there is underneath there, I cut the losses and put a gable end on each side of the wood shop and called it a day. Still a few things to work out with a cricket in the trough between the two building surfaces, but a way easier solution than trying to figure out that 20+ foot span of nothingness. Would have been nice to keep the aesthetic, but practically speaking it made a lot more sense not to. And it allowed me to also drop the wood shop ceiling by a bit. The entire thing also came down a nondescript distance because of the building code of stairs being awkward and indivisible by most combinations of 6" heights that the ceilings and whatnot are based off of, so it sits somewhat lower now as well. At this point, the cad model is nearly done. Still working through minor details like the exact window position and some stuff with other frames and how they interact, but for the most part it's done. Just waiting on the final word from the engineering side before actual plans start getting drafted. Lots of work there, but fortunately I think my hand in it is almost done (6? months later!). Later in March, I'll be heading out to NH for some site surveys on potential properties. I have a small handful lined up with one being more appealing than the others, but I need some closure on flood levels because it sits near a lot of tributaries and the last thing I want is a sort of 'castle sinking into the swamp' situation a la Monty Python. Related but not yet in the model, I've also been doing some research into foundations and how to go about using a combination of the natural granite so common to NH and modern materials to build a sort of composite foundation. The idea being having reinforced concrete where it matters, and thicken the walls with the masonry for thermal efficiency and aesthetics. For anyone interested, I came across a wonderful little book called 'The Art of Stone Splitting- Early Rock Quarrying Methods in Pre-industrial New England 1630-1825' and it's almost exactly what you'd think it is. Combined with some other framing books, I'm starting to piece together a picture of how this all comes together and what needs to be different from normal construction methods due to the dramatically different load distributions. More to come soon! John
  14. John Page

    The Birth of a Workshop

    Right-o, took a little longer to bring the screenshots over than planned, but here's what's going on with the frame and joinery. I shifted the adjoining roof down a bit so the intersection of the planes is now at the inner edge of the common rafter vice the middle. That allowed for the ridge beam to drop a few more inches but it's now at the limit of where I can move it to. Looking at the extruded face and how it interacts with the kingspost, the lines of the rafters come to a point somewhere inside the kingspost but higher than the peak of the ridge beam. However in practice the ridge beam is slightly proud of the joint between rafters and kinspost. Still working through some alternatives, but this is as close as I can get it without adding extra/unnecessary beams. Inside the frame, here's what the kingspost joint looks like. Took a bit of figuring on the size and interaction between the hammer beam ends, but this is what I've settled on for a few reasons. First, having the tennon ends meet less-than-full-beam-width, it allows some of the stress to be distributed and load taken partially off of the tennons. Second, it allows for a metal (forged, of course) reinforcement of the joint that cannot be seen from the underside due to the continuous ring formed by the trusses extending out to where the faces intersect (corner before the ends are chamfered). Last up for now is a look at the adjoining roof of the entryway. This one also gave some trouble, but reading about certain types of interior corner beams, I figured out a fairly easy and math free way of determining how to pitch and cant the angles of the intersection. Still some work needed to clean it up, but the skeleton is there. In going back to add the stairs back in, I had to adjust the floor heights again, which is an annoying but critical piece of the puzzle. Turns out building code for stair dimensions is not conducive to having a wall height divisible by 6" increments. In the end, I shifted the woodshop floor down 6", the hotwork shop up 1.25", and the grinding/clean room floor down by some other amount that gives 3 stairs at 7.75" each and a ceiling height of 9'4" or so. For the time being, I'm trying to refine the overhanging bit of roof that connects the two shops, and from there it's the finishing details of window dimensions and a few of the joints that I neglected to add earlier, and it's about done! John
  15. John Page

    Moonlight Seax

    Freeform Odyssey, indeed! Those photos came out great! Looking at the lower side of the twists, that's an awesome illusion of a shadow from the weld line, and I love how the surface texture of the twist holds up to the welding, creating a sort of quasi-wolf's tooth. Neat-o! And, that's an awesome place you've moved into! I was actually thinking about that very place the other day for some reason, and how much of a fantastic community that's going on there. If I can ever vacate the ocean, I'll try and make it up that way sometime in the later half of March. Joh
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