 | | Re: Strengthening Gears —Tobbe Arnesson
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| | | FUT: lugnet.technic (...) There's a lot of talk and little workshop here. I know nothing about gear streangth, I have never broken a gear - unitl today. Feeling the only way to settle this is to actually test it: 1) I took a z16 gear and boiled it (...) (23 years ago, 5-Mar-02, to lugnet.technic, lugnet.general, lugnet.robotics, lugnet.build.mecha) !
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| | | | | Re: Strengthening Gears —Thomas Avery
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| | | | | In lugnet.technic, Tobbe Arnesson writes: <snip> (...) Ha! How about that? We now have one confirmed test that gear-boiling works. Anyone care to speculate on the physics behind this? TJ p.s. Thanks Tobbe for sacrificing your gears and axles. (23 years ago, 5-Mar-02, to lugnet.technic)
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| | | | | | | Re: Strengthening Gears —Tobbe Arnesson
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| | | | | | | (...) Yup :) (...) The inner tension of the gear after molding got out? (...) n/p I have a few #6 axles and z16 in my overflow bin... /Tobbe (URL) (23 years ago, 5-Mar-02, to lugnet.technic)
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| | | | | | | Re: Strengthening Gears —Tobbe Arnesson
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| | | | | | (...) I talked to my co-worker who's a rock climber about this interesting matter and he claims that climb ropes get better and better from stress regarding max weight/pull capabilites, however they also get crispier. Climbing ropes are generally (...) (23 years ago, 6-Mar-02, to lugnet.technic)
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| | | | | | | | Re: Strengthening Gears —Thomas Avery
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| | | | | | (...) This is just a wild thought, but what if the boiling process doesn't alter the the strength of the material, but helps to reduce stress concentration points? If the gear deforms ever so slightly (i.e. negligible deformation- no change when (...) (23 years ago, 6-Mar-02, to lugnet.technic)
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| | | | | | | | Re: Strengthening Gears —Steven Nickle
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| | | | | | I hahe been lurking on this conversation for a bit. Here are some random thoughts: Blocks, Gears and Axles use three different materials. By that I mean the are differnet grades of the same material or totally different materials. I lean towards (...) (23 years ago, 6-Mar-02, to lugnet.technic)
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| | | | | Re: Strengthening Gears —Thomas Avery
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| | | | | (...) <snip> Tobbe, Was there any noticeable deformation of the boiled gear? For example, did it have any out-of-roundness (i.e. ovalization) and/or was it warped? Thanks, TJ (23 years ago, 5-Mar-02, to lugnet.technic)
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| | | | | | | Re: Strengthening Gears —Tobbe Arnesson
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| | | | | | (...) *digging through layers of bins and instructions to find my slide calliper* Okay, measuring from one side, two gear tops resting on the caliper on each side the gear is 17.50 mm and measuring the other diagonal it's 17.45. Note that my caliper (...) (23 years ago, 5-Mar-02, to lugnet.technic)
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| | | | | Re: Strengthening Gears —Jason S. Mantor
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| | | | Wow ! Interesting results. I would have bet my firstborn that it would weaken them. Anyone else try this ? I might just to see if Tobbe's result is a fluke... (23 years ago, 6-Mar-02, to lugnet.technic)
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| | | | | | Re: Strengthening Gears —Tobbe Arnesson
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| | | | (...) Personally I counted on a big melt and hoped it would not ruin my kitchen hardware :) /Tobbe (URL) (23 years ago, 6-Mar-02, to lugnet.technic)
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