Mark Thomas


San Francisco, CA, USA

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  • "MDF has extremely low stiffness, and it creeps.  An 8 layer thick top will sag over the length of the bench here."Wicked smooth" is not desirable for a workbench.  The surface should have some tooth to it so there's friction.  A too-smooth bench top is annoying because things slide around too easily.   "
    on: The Exploitation of Wood
  • "Lomography is fun, but phrases like "vintage-style lenses" and "aberrations you get in historic lenses" is a little misleading, seeming to imply "vintage" lenses are intrinsically of lower quality than modern lenses, which is not true.   The Lomo cameras were cheap, low-quality cameras in their own day.  Vintage high quality cameras were of very consistent very high quality, and vintage low quality cameras were, well, low quality."
    on: Lomography's Focus? Blurring the Line Between Professional and Casual Photography  
  • "There is no doubt a niche in the US for a 25mph top-speed, two-person, 50 year-old technology lead acid battery, non-street-legal, flimsy and cheaply constructed vehicle.   Needless to say, that is not a F-150 size niche, and the niche is already filled with golf carts and GEMs.  (fyi, the GEM pickup carries 1,400 lbs, besting the Pickman by 40%.)If it were possible, I'd short sell on this in a heartbeat.  I think their 10,000 sale target is a dream."
    on: China's $9,000 Electric Pickup Truck is Coming to the U.S.
  • ""transfer" the weight??  "stick through friction"??  This doesn't even make any sense.The shape does the exact opposite. When the wheels ride up, it creates sideways force back toward the roadway, and it also straightens the front wheel.  In a light swipe the wheel rides up and pushes you back before the car's body makes much contact the barrier."
    on: Observing Cars Crashing Into K-Rails, to Debunk a Theory
  • "Clever, but doesn't seem better than the industry standard:https://www.youtube.com/watch?v=J4HsIS90Z3E"
    on: Clever Medical Design: ZipStitch, a DIY Non-Invasive Substitute for Stitches Based on Zip-Ties
  • "Of course this general model -- outsource to specialists -- is growing in every sector, and is increasingly available to everyoneone.  There's a CNC panel shop near me that will do one sheet.  I had a drawer pull I wanted to make for my kitchen, but found I could get a small quantity (50) made in China much more easily.  I've recently had some stainless water jet parts cut; I just googled "waterjet cutting" and in minutes sent drawings off for quotes to places that will run 1 or 1 million parts.  I know some people in the high-end custom cabinet business, and none of them make their own drawers anymore.  Check out how a cabinet door is made:http://www.caldoor.com/tour.htm"
    on: Tools & Craft #123: The Future of Furniture, Part 5 - Forming Sheet Goods
  • "I mostly ride in the city, and I look at my cluster about once per trip -- when I start up.  Once the kickstand goes up, eyes on the road! A good design would be a cluster that goes black when the bike starts to move. Maybe an occasional glance at speed and fuel when out on the open road is OK, but when riding around a city like London, you shouldn't be looking at the cluster at all."
    on: Reimagining the Design of Motorcycle Clusters<b> </b>
  • "Some trucks have hubs you can stand on with one foot, and step on top of the tire for greater height. It's like a built-in step ladder. My F250 is like this."
    on: Could/Should You Design a Folding Step That Deployed From a Car or Truck Wheel?
  • "Fabricating provenance stories is a basic job skill of "antique" dealers."
    on: Innovative Old-School Furniture Design: A Hygienic Hog Slaughtering Table
  • "Just bizarre,  A poor nail substitute, hideous looking, and guaranteed to fail and leak."
    on: How to Easily Attach Sheet Metal to Wood: The "Reverse Rivet" Trick, No Rivet Gun Necessary
  • "I share the "what a waste" sentiment re: Ikea lamp, and instinctual distaste for the increasing culture of disposability.   But I often ponder to what degree this is just an anachronistic bias.  My parents grew up in the scarcity and thrift of the Depression, and even into the 70's it was obviously more efficient to conceive of most things as having an extended life (repairability, etc), and that's the culture that molded me.But in a future in which material recycling is ubiquitous and efficient (the direction we're heading) and the energy to do so is also cheap and clean (solar, etc), is there some intrinsic moral superiority to product longevity?   Is there anything wrong with buying a lamp and shortly thereafter "discarding" it into the great maw of "
    on: Tools &amp; Craft #120: The Future of Furniture, Part 2 - Goals
  • "As an ID person, you're actually being kind of irresponsible to so glibly trash talk the design of something that you are mis-using.  Wheelbarrow design doesn't suck, in fact it's design perfection -- simple, reliable, easy-to-use, cheap, etc.   Your problem is mis-application.  Wheelbarrows are not for carrying cages, wood, etc.  They are for soil, sand, gravel, etc.   For example, I had a crew move 200 tons of dirt from under my house to dump dump trucks, traversing a 30 foot long 12" wide plank path 8 feet in the air, one ~80 pound wheelbarrow load at a time. Thousands of trips, not a single spilled load that I recall. Wheelbarrows are used like this by zillions of people every day all over the world.  That Hammacher Schlemmer-looking contraption is fine enough for carting chicken feed on a Gentleman's Farm, but wouldn't last an hour in a construction environment where wheelbarrows thrive."
    on: A Smarter Design for a Wheelbarrow: The Multifunctional Worx Aerocart
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