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  • Electromagnetic Climbing Like a Spiderman

    I hate it when that happens!

    **** Or anywhere else either! ***** Awesome hack, not too safe, no backup rope. I wouldn't do it without a belay. Impressive!

    MIG and/or TIG can be a very awesome welding system. MIG is a little cheaper welder, and thus more popular, there are things you can do with TIG that won't work with MIG. First time I tried a MIG, I sat down and signed my name in a piece of steel, I bought the used rig right then and there, probably my most expensive impulse buy ever. Never regretted it.

    I've been involved in some rockclimbing, and also adapting rockclimbing equipment to building inspection/safety. Two things make me nervous about this. First, in ladder safety they insist three points of contact at all times. Only move one point of contact (hand/foot). In this case we're moving two attachment points. It would be safer if the hand and foot were independently switched. That way only move the hand, then switch the left foot and move it, then switch the right foot and move it, etc. Second, what about battery/electronics failure? Pretty much catastrophic. We do something similar in climbing with ropes and a gizmo called a jumar. It only takes two jumars to climb a rope, but there is always a third that simply attaches to the harness. I used such a rig just yesterda...see more »I've been involved in some rockclimbing, and also adapting rockclimbing equipment to building inspection/safety. Two things make me nervous about this. First, in ladder safety they insist three points of contact at all times. Only move one point of contact (hand/foot). In this case we're moving two attachment points. It would be safer if the hand and foot were independently switched. That way only move the hand, then switch the left foot and move it, then switch the right foot and move it, etc. Second, what about battery/electronics failure? Pretty much catastrophic. We do something similar in climbing with ropes and a gizmo called a jumar. It only takes two jumars to climb a rope, but there is always a third that simply attaches to the harness. I used such a rig just yesterday to climb a tree - the third attachment point was needed just to have a rest every once in a while. Many ladder systems on tall objects like power plant stacks have a rail in the middle where a simple ratcheting safety cam attaches. You can't fall even if you let go of both hands and your feet slip out, the cam on the third rail stops your fall. If one of the steel rails you are climbing is such a rail, (or both of them) then a mechanical safety could stop a catastrophic power failure. Nice hack guys!

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  • Invention1 followed Invention1 and NewMoonDragon6 months ago
  • Invention1 followed Arduino channel 6 months ago
  • Electric Bike Charger from Mean Well Power Supply

    I don't. This type of battery usually has a built-in battery management system (BMS) that may or may not have that function. High battery temperature is an important consideration, and limiting the current to the battery manufacturer's spec is the first way to avoid overheating. Most chargers for LiFEPO4 batteries do not have any kind of temperature input. Better BMS systems will have a battery temperature limiter of some kind, and automatically disconnect from the charger if they sense high temperature.

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  • Invention1 commented on Invention1's instructable Easy Wine Bottle Hummingbird Feeder6 months ago
    Easy Wine Bottle Hummingbird Feeder

    Troubleshooting - if the feeder water glugs out, your tubing may be too large. I had to pinch my tubing nearly shut to make this stop leaking.

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