Recent content by gte718p

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    Air System Piping-- don't overthink it (lessons from my recent project)

    The other problem sinking heat into the thermal mass of iron piping is it stays there. Once you have saturated the system, the iron is going to hold on to that heat for a long time. Take a short break and thin copper or aluminum will have radiated the heat away and be close to ambient. Black...
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    Above 1200 Sq/FT The Salvage Garage

    He is attending a FLA (Fork lifts anonymous) "retreat". It is an intensive in patient course.
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    Question for the 12V Lithium battery guys regarding testing..

    That makes sense. Most likely Cobalt Oxide version. LMO are not normally rechargeable. However, are extremely stable. It is what you generally find in your 10 year smoke detector or watch battery cells that last forever. LiMnO₂ have slightly larger voltage range. 2.5 volts a cell is...
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    Question for the 12V Lithium battery guys regarding testing..

    Without starting with a full charge, there is not a good way to determine state of charge on the bench. You can SWAG by voltage, but you really need a good multimeter. A 1% error is going to really throw of your estimate. Even then if you are not full an extremely small voltage range covers a...
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    Question for the 12V Lithium battery guys regarding testing..

    That seems really low. 565v means probably -170ish cells. The lowest I would really want to run is -500 volts. The exact numbers depend on chemistry. Monolithic LiFePO4 is not the same as Lion 18650s. It is a trade off though. A deep discharge is going to hurt the pack. If it is a house...
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    Question for the 12V Lithium battery guys regarding testing..

    I forgot to add, I prefer the hall effect type, like the one linked below from the forest company. It doesn't look like this particular one is avaialbe any longer, but you have find 10 varieties of the same thing from Aliexpress...
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    Question for the 12V Lithium battery guys regarding testing..

    Voltage is useful on a Pb acid battery as an approximation of capacity. For lithium chemistries voltage is almost useless. The voltage vs capacity charts are almost flat and then they drop off a cliff. This is the curve for a battery bank for 4 batteries, but is pretty representative. To be...
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    dig out stumps vs grinding?

    GJ remembers.
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    The Everything 3D Printer Thread

    I was thinking more what AI did you use and what did you ask it?
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    The Everything 3D Printer Thread

    I didn't pay attention to how small your part was. Min layer time would absolutely also do it. Time=Distance/Speed. Slicer is going to slow everything down to make it work. I think Slic3r which Orca, Prusa, and Bambu are based on does a better job with mathing then Cura and as a result does...
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    The Everything 3D Printer Thread

    Acceleration is limited by the torque of the motors. That may be a function of the design of the motors, or it may be the controller’s current handling ability, or the controller’s ability to rapidly generate steps. It doesn't matter what numbers you put in slicer, if the controller can only do...
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    Car condo owners, in here

    Muscle car prices could fall?! Us younger guys are waiting. :) I hate to point out the obvious, but the younger crowd is not waiting. Hence why prices are falling. The younger crowd has mostly realized that 2020 Camery will out perform a 60s, 70s, or 80s muscle car especially if there is a...
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    How hard will it be to pull 250' of 4/0 from 2" conduit

    I mean if you are going to cut it off anyway, you might as well give it the old redneck go. Grab a pickup, a chain, and a beer. Get a good run up and I bet you can pull it out, or your bumper off, or both.
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    Using Atlas Lathe to Turn Rotors

    If it fits, it ships. Turning brake rotors is not rocket science. What Alfadan said go slow. It probably will kill the tooling so resharpen often. Personnally I would go with carbide.
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