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Bob Hadley

Bob Hadley
135 POSTS 7 COMMENTS
Bob Hadley is the R&D manager for a California-based consumer products company. He holds a Sport Pilot certificate and a Light-Sport Repairman certificate with inspection authorization for his Jabiru J250-SP.

Home Shop Machinist

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Conrad Norquist shows how the 6061 tubes supplied with Airdrome Aeroplanes kits are easily bent using wood templatesMechanics from aviation's golden age did...

Parallels, Stops, and Travel Limiters

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Although the title might suggest it, this is not about parallel parking, speeding tickets, or driving of any kind.

Home Shop Machinist

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Trail of crumbs.

Chasing the Elusive Thread

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Chasing a thread (B) on the lathe involves engaging the feed system to make several passes using the 60-degree thread-form tool (A) until...

Home Shop Machinist

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Billet oil-drain elbow.

Silver & Deming and Step Drills

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Home shop machinist.

Machinery Mobilization

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Rich Seifert next to his Shopsmith Mark V combo machine. Factory wheels make the Mark V easy to maneuver. I've yet to meet someone...

Home Shop Machinist

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Be steady.

Sphere Turning

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Sphere turning.

Home Shop Machinist

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Gnarly good knurls.

In Case You Missed It

Alternative Energy Projects

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This month I’m taking a step back from doing the usual aircraft-related project to...

Firewall Forward: Oil Coolers and Oil Lines

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The right oil cooler, installed correctly, can maximize your engine’s life. Of course, you’ll also need to consider crankcase breathers, oil separators, oil filters, oil lines and connections.

Aero ‘lectrics

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The enduring value of the LM386.

Aero ‘lectrics

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Anodize, anodize, and aluminum exercise.