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  1. Bayview-BOOM

    Torque Impact of Gear Train?

    That's great news. It means the mechanical strength of individual stages can be reduced by adding more stages. So that's a benefit.
  2. Bayview-BOOM

    Torque Impact of Gear Train?

    When you say the main effects are easy to calculate, are you talking about friction? I'm not a professional gear designer but I'm pretty sure that sequential stages can have identical ratios. That doesn't mean the gears are identical.
  3. Bayview-BOOM

    Torque Impact of Gear Train?

    Assuming an RPM-increase gear-train, if more gears are added to the gear train, without changing the step-up ratio of the total train, and without changing the desired output torque, will the first gear require more torque to turn it? Less torque? Or no change? For example, compare: 1:64 vs...
  4. Bayview-BOOM

    Lithium Charging Load Resistance?

    @3DDave: "A/C impedence is an indicator of the battery overall health regardless of charge state." Would the tested impedance be different at different SOC? Thx
  5. Bayview-BOOM

    Lithium Charging Load Resistance?

    I'm trying to understand the load-resistance of an A123 Nanophosphate High Power Lithium Ion cell. https://www.buya123products.com/uploads/vipcase/844c1bd8bdd1190ebb364d572bc1e6e7.pdf My understanding is that resistance increases as the cell charges. The datasheet says "Internal Impedance...
  6. Bayview-BOOM

    Least Brittle Polymer, Epoxy, Resin, Clay, or Putty?

    Hello I want to cast a polymer, epoxy, or resin. It must be crack-resistant when compressed. Prefer a clay or putty. I tried JB SteelStik, and it cracked under compression. Don't need bonding. Fancy expensive products are not an option. Fyi, this is related to a youth engineering...
  7. Bayview-BOOM

    How to Harden Tin/Bismuth Alloy?

    I need a low-toxicity, low-melting point metal (before casting), to cast hardware parts. After casting, the parts must not crack under torque or impact, and should remain hard up to at least 100 deg C. My plan is to make a Tin/Bismuth alloy, since low-toxicity, low-melting point. I've heard...

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