Author Archives: Michael Slater

First impressions

Bottom bracket height is 1-1.5cm low. It particularly stood out today because I was wearing soft shoes and standing on MTB cleats. Should be less annoying if I’m in proper clipped shoes. Should be 10.5″ (26.7cm) without rider (the fat … Continue reading

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Chainstay Dissatisfaction

I followed the typical sequence on my latest frame: built the front triangle, filet-brazed it together, and then added the chainstays.  Of course the chainstays don’t fit cleanly against the bottom bracket. The filets of the ST/BB junction get in … Continue reading

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Earlier, at the workshop

I used my homemade arbor to chop the chainstays for my Melakaveli track frame.  /p>  I’m not happy with my system for brazing-on the chainstays.  I don’t like to miter them around the pre-existing ST/BB fillet. It’s gross.  I may … Continue reading

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View from the cockpit

This is the maiden ride of my Summer Corvette randonneur. I built the frame last July with at Dave Bohm’s place. I got a pile of bike build equipment from Rivendell a few weeks ago. I set it up with … Continue reading

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Air-Conditioning

Messing around with the old Mafac cantilever brakes in the Geminiani today. Was hot as hell until nature turned on the best air-conditioning available: Sumatran downpour.

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1946 Raleigh Bicycle Factory

Wow.  Some brutal processes going on here.  Great machinery, too. http://film.britishcouncil.org/how-a-bicycle-is-made

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eBay Weekend

Two auctions this weekend. Two possible projects. Only won one. I bought an old Shimano ‘Crane’ rear dérailleur. The Jockey wheels are replaced with red ‘bullseye’ wheels. These are famous from the eighties for having the first cartridge bearings. The … Continue reading

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Thread Success

Did all the steps 15% better: sharper tool, better aligned and centered too. Importantly ( I think ) pulled the thread tool off the work piece with the cross feed during reverses. Made massive cumulative difference.

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Anyone can turn and face, but only big boys can thread

I’m not in that league yet.    

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Cantilever Brakes

  The brakes were weak.  But not because they’re bad brakes (Mafac cantilevers), they were just terribly adjusted. Almost lacquered with ancient grease and crud.  Many doses of Ling’s jewelry cleaner fixed them nicely though.   I need to: 1) … Continue reading

Posted in Bike Projects, Raphael Geminiani Randonneur | Leave a comment

Cotter Press

My cotter crank and fresh 9.0mm cotter pins arrived from Bikesmith Designs yesterday.  I repacked the bottom bracket bearings and put the cranks back on.  They’re held on my heavy 9.0mm cotter pins which have an angled flat that presses … Continue reading

Posted in Raphael Geminiani Randonneur | Leave a comment

Detour for an arbor

On Saturday I finished prepping my chainstay mitering fixture.  During the dry-run, I discovered a major problem.  The quill of the mill cannot plunge through the mitering fixture.  I need a long arbor that I can grip in the collet … Continue reading

Posted in Shanghai Ning Jiang HG28 Lathe, Sputnik Chainstay Mitering Jig | Tagged | Leave a comment

Surface plate accessory

  I built a stand and clamp out of some shop scrap.  It holds the stepped dropout alignment and spacing gage.  I also use it to ensure that my seat tube is the same height above the surface table as … Continue reading

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Simplex ‘Suicide Shifter’ front derailleur

The derailleur wasn’t working so I tore it apart to bits then rebuilt it.  Working ok now.  See the flickr set for details.    

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New Tool: flat plate

My alignment tool arrived a few weeks ago.  What is it?   A giant (3×5′) cast aluminum plate that is heat-treated and blanchard ground until it’s quite flat.  A professional machinist says this would be called a “flat plate” not … Continue reading

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Raphael Geminiani Rebuild

    Bought this Raphael Geminiani 650b randonneur from eBay.fr recently.   Why? because it’s got great components — a nivex rear derailleur (4 speed) and a simplex lever-controlled front derailleur.   In the photo above I’ve removed the fenders … Continue reading

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Modern Technology

Jan Heine at Bicycle Quarterly writes excellent bicycle reviews. A lot of his tests are randonneur-style bicycles. These are lightweight steel bikes with fenders, and often, integrated lighting systems. They’re designed to be ridden from anyway between 200km and 1600km … Continue reading

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Ling’s PW

  Ling getting used to her new bike on the Kinetic trainer at Elite Custom.   This bike was finished in January.  I thought.  Then I discovered a….. technical issue.  Fixed it in February, but then I dithered with delays, … Continue reading

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When vintage is not vintage

Normally when you see ‘vintage’ instructional videos from the WW2 generation, it’s corny stuff — naive nuclear fallout instructions, or hysteric precautions against gonorhea, and things like that. I just watched this video on turning tapers with an engine lathe … Continue reading

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Machining things

I’ve been busy in the workshop, just not posting anything.  I’ve been trying to get the mitering fixtures setup and there are always bumps along the road.  Recently I’ve been busy machining a dummy headtube block for my Sputnik main … Continue reading

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