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Emyr

Member since Jul 2010 • Last active Dec 2022

Programmer, bike polo player, fatbike rider.

Welshman in Manchester.

Most recent activity

  • in Bikes & Bits
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    Trailer I built is Emma's, but her feedback would be that downhill is much more of an issue than uphill. I've been working on how I'd redesign the axle holders to incorporate a brake caliper, luckily the hubs are thruaxle with rotor mounts.

  • in Bikes & Bits
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    Looking at this steerer mount, I don't see how you'd tension the headset:
    https://www.pro-bikegear.com/uk/accessor­ies/di2-accessories/di2-battery-holder

    Got a bottlecage case fitted onto a new MTB build but I'd rather not have it quite so exposed in case the bike gets decked left and the plastic case snaps.

  • in Mechanics & Fixin'
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    Necro-bump to say I learned something new yesterday:

    On Cannondale Hollowgram the arm aligns to one of the dips between the lobes on the spindle splines, both DS and NDS, so both sides are in-phase (the bumps align).

    Sram, RF and Easton align the DS arm to a bump, so 22.5 degrees off from Hollowgram. Sram 30mm chainsets have the spindle "permanently" attached to the NDS arm, and although I can't find a photo of the RaceFace or Easton NDS separated from the spindle, RF sells spindles. RF spindles have both sides in-phase, so NDS must also be bump-aligned.

    Most Stages power meters are sold as modified left arms, so either you send your left crank arm to Stages and they bond their strain gauge to the inner face and calibrate it, or they sell you a boxfresh arm with the gauge already attached, to match your crankset. For SRAM/FSA/RF/Easton, Stages sells its own carbon arm rather than adding their gauge to an OEM arm: https://stagescycling.com/en_gb/gen-3-st­ages-power-l-stages-carbon-power-meter-f­or-30mm-sram-race-face-next-sl-fsa-386ev­o

    The Stages 30mm arm is dip-aligned, like Hollowgram, so the Stages 30mm spindles have the two ends out of phase with each other. https://stagescycling.com/en_gb/stages-3­0mm-spindles

    If you used a Stages spindle with two Hollowgram arms, or two RF/Easton arms, you'd be cantering. If you used Stages or Hollowgram on one side and SRAM/RF/etc on the other side, the arms would be at 180 degrees like normal.

  • in COVID-19
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    I want to get involved in less obscure stuff than the apps I develop that started 11 years ago in a team of 4, since I've been a team of 1 for a few years now and it doesn't seem to be getting better yet. I don't use branches in git because there's nobody else to merge with.

  • in COVID-19
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    Having the best video/audio quality in any meeting gives you an edge on attention and being memorable. If "the guy with the fancy mic" gives good questions and answers in multiple sessions, people recognise it's the same person, so your brand becomes "person who asks good questions and has good answers and happens to have a nice and distinctive setup".

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    Is it UDP if you don't remember asking for a table?

  • in Miscellaneous and Meaningless
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    Anti-guano gazebo in the space that will be my 20ft x 12ft workshop (alas not a perfect rectangle). Should have a door on it this year.

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    Highlights on C4 should be getting to the start soon. Was half-watching earlier with one earphone, think this shitshow merits my actual attention.

    Watched the first two F2 races of the weekend then tuned in to F2 today just in time for halfway through the first red flag, so wasn't expecting much quality from the F1.

  • in Miscellaneous and Meaningless
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    His book is good, as is his Honda S600/1000.

  • in Miscellaneous and Meaningless
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    Can you mix and match different batteries to best suit available space?

    No, you'll get really weird behaviour if some of the cells drop voltage faster than others.

    Are Tesla motors the way to go?

    Tesla components are an obvious choice, but they're not cheap cars and demand is high.

    Leaf's powertrain is limited to protect its battery, since it doesn't have liquid cooling, the cells are quite easy to repackage, easier to fit in a car than the Model 3's four subpacks for example. Ampera batteries were massively overbuilt for what the car needed, capable of really high output, but supply is getting rarer and a bit old.

    I think your next step needs to be working out the sizes and shape of the spaces left over when you remove the engine, exhaust, propshaft and fuel tank. Also, capture some CAN logs so you can work out what messages you need to keep the Subaru's dash and body-computer happy.

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