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I Forge Iron

james austin

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About james austin

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    Advanced Member

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  • Location
    Outside Providence, Rhode Island
  • Interests
    Wood Carving. Tool Making. Books. Cooking. Puns. Sarcasm.

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  1. Wow! Those grinders are huge! The scale is totally deceiving, I thought that 2’ scale was a bit of wire at first.
  2. Yeah filling the tire seems like an easy thing until it gets to the last bit. I was thinking clay around the inside of the rim. I figure I could run a fat coil around the rim, then spin the wheel and throw it like centering a pot on a wheel. It’s possible that this is one of those things that sound better in my head than it turns out to be. I think the next step will be to put a second wheel on there. That will add weight and give me a second grinding option. And it will give me some time to think about the flywheel.
  3. Yeah, the truing and balancing is the thing I I worry about with adding weight. I wondered about tire weights, but honestly don’t know much about them, and just assumed they came individually. I’ll look around and see if the strips you mentioned are available cheaply online. I’ll definitely be adding a wheel to the other side, but can’t quite decide what it should be. The one I’ve got is a soft 100 grit alox wheel, so I think I want something more aggressive. and no worries about the ramble. Y’all rambling is one of my favorite parts of this forum. I’ll also look out
  4. Scraped together enough time this week to get this thing working. Stone and drive belt came in Monday, but of course I ordered the wrong arbor size. Got a 5/8, when I needed a 1/2. Night the cheap wheel too so no adaptor bushings. Found a spacer at the hardware store and just filed it down right on the arbor. No slop at all now, and the wheel runs nice and true. Once that was finished I welded up the drive belt. And had to tear off the cross brace connecting the two sides to install the closed loop belt. I think I will need to add some sort of hinged brace on the short ends but
  5. Thanks Irondragon, these really threw me off. I’m not sure I’ve ever seen oil ports like this, and just assumed grease and roller bearings. Oil sounds like it won’t be too hard to manage. Now to go read up on bushings! thanks again
  6. trying again with the photos side view of grinder grease? Ports Front view overall
  7. Hey yall, been a while since I've had any time to even think about building anything, but lately things have eased up a bit at work, and I've had some time back to myself. I thought I'd post a bit of an update on this project, and I have a more questions, which I will leave at the end. Spent the last weekend trying to build some of this out, and have the basic frame together now. I ended up putting the big wheel grinder on hold for now, and instead worked up a version of the grinder Michael posted up thread. I'm planning to put the treadle together this weekend. The structure is j
  8. Forge has been running pretty much as well as I can make it run. I'm still getting a feel for fire management, but it is getting better. I've changed the firepot around to lean the side walls out at an angle, which really moves the dimensions back to what Charles Stevens recommended to me in the beginning... Sometimes we have to make the mistakes for ourselves. Fuel consumption is still pretty low; a handful of charcoal every other heat or so. I've also started sifting the charcoal a bit, to get most of the fines out. Save some for punching like pnut suggested, but mostly just going
  9. Ha! Frosty your taking me back to middle school! I can still remember a whole unit on gear ratios, and the workings of a mill, which ended with a field trip to Slater Mill here in Rhode Island. I spent probably a month solving gear ratio and transmission problems. Still remember that as one of the best science projects I've ever done. Also I finally found some time to look up Practical Blacksmithing which Thomas gave earlier in the thread, and there is indeed a whole chapter in Volume II dealing with making "emory wheels". There are some interesting ideas or gluing abrasive to woode
  10. That is an awesome grinder Michael! I thought for a while about something like that. even went so far as to buy an arbor to run wheels on, but I never quite sorted out the mechanism to treadle it. I like this because you don't even need to modify the wheel just mount it to a frame. Is the chain return just a bungee cord? Fowllife: I chose MDF only for its weight and route-ability. So far I haven't been able to find anything that is as heavy, and as easily workable as MDF. I think there may be a good argument for casting it in cement or similar, but I'm not as confident in my ability
  11. poking around tonight and found an old Popular Science Monthly article on casting a cement flywheel to use in building an “amateur lathe or any other foot-power machine”. oct 1919 i really love old magazines!
  12. Bacon for bearing lube. Man I can only imagine the smell around town on a Sunday after church! i have been meaning to start checking the salvage yards anyway looking for some springs, so I’ll add axles to my list. and start reading up on wheel bearing assembly... Filling a tire with cement really does seem like a good idea in a lot of ways. Lots of weight, all way out at the edge of the wheel, prefab mounting system. You’d need to make some kind of mount for the end of the shaft, but I suppose you could take the whole rear wheel/axle assembly, though maybe there’s more involved
  13. Charles, I think that grinder is also one of the inspirations for this machine. I’ve thought about using bike gears for this but it adds a lot of complexity to the build. I may still though. I’ve got all the parts lying around. I haven’t had the opportunity to try an original stone Thomas. I spent most of the fall on Craigslist and the local flea markets but not been able to find one in decent shape yet. I am hoping to be able to build this do about the 75-100$ that one of the stone wheels seem to go for. I spent some time yesterday figuring possible weights for different d
  14. Hey thanks for all the ideas folks! Frosty: making the wheel to fit a 2x72 belt was my first idea, I decided I wanted as much weight as possible, but a 2’ OD wheel seemed like a better use of 4x8 sheet goods. I think a steel wheel would be great for weight, but I haven’t got access to the cutting, bending and welding equipment. I can borrow pretty much any woodworking tools from my dad. i like the idea of mounting the axle on one side of the wheel, but I don’t know how strong an axle is needed for that. Seems like it would be easy to bend. What size axle would you recommend?
  15. That's good to know Thomas. I was under the impression that they could be used for a bit of both. I am planning a bit more than just touch ups, but not really extensive grinding. Thinking of analogous power tools, I was thinking more of a Tormek than a belt grinder. I was hoping that the larger diameter would give more surface speed, and work a bit faster, but mostly I'm interested in using grinding jigs like the tormek, and wolverine fixtures.
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