Dan_Antonelli
@__el__toro__
Mechanical excellence through design & engineering. Carefully crafted form & function. Prototype to production. /// A G I L E
Much appreciated, Patrick! And thanks for asking -- my design process goes something like this: It always starts with a pen & paper. Sketches. Idea journaling. I start to form a mental model of what the finished product might look like and how it will function. This is the…



You've seen the finished gears. Here's how they were cut. Double helical set for the TVA. Imagine flipping these babies around with a crane, carefully loading them into the machine & center checker. No biggie for my dad (probably why he made it onto the cover of the brochure).

Big teeth produce big hot chips when being cut. 4 DP Spur Gear 4140 HT Crane Trolley application
It's always the little things. The final touch. The last 1%. Anyone can make something ugly. Not everyone can make something beautiful. Details matter.

1991 Lahaska, PA Harry Miller 91 aka The Packard Cable Special Driven by Leon Duray / Restored by Chris Leydon Entire geartrain re-manufactured by my father (pictured) & crew at A&A Gear. At the time this car was worth over $10,000,000. Currently in the Smithsonian Institute.

Hard to beat late 50s / early 60s cars for details. As the jet age approached, more & more cues from aerospace found their way onto regular American vehicles. Think about this, too -- every year manufacturers would change the styling of their cars inside & out, making each…


"We need a custom arm for the display. Off-the-shelf isn't going to cut it. It has to be reversible, and lightweight, and rigid, and completely adjustable." 3D Printed MJF PA-12

Who does shifters better -- Singer or Spyker? The good news is you can't lose either way as both understand form & function. Our eyes are drawn to visually interesting shapes with contrasting, yet complimentary, finishes. Organic lines mixing effortlessly with machined…




Riding off into the night. Powered by dreams & drive. G O O D E V E N I N G

As much as I love incredibly detailed & lovingly crafted interiors, I love incredibly detailed & monstrously powerful engines even more. This SSC Tuatara twin-turbo, LS-based, flat-plane, 1,750hp V8 (built by Nelson Racing Engines) is a perfect example of craftsmanship,…




In honor of my father, who is in surgery right now, here is the last job he sent to me: Metric cluster gear 3.5 module Cut on a Fellows 10-2 shaper

"What line of business are you in?" "Beauty." "You mean cosmetics?" "No." "Oh, so like fashion or jewelry?" "Not exactly..."



Toughest part about constantly having good ideas is constantly having good ideas.
R I S E + S H I N E + B E B O L D . x.com/_osullivan/sta…
"This is your wake-up call, pal. Go to work."
My father hates this photo. Lamont Gear, late 1970s Double helical gear set The photographer tweaked part of this checker to make it work better for the pic. Unless you're an engineer or cut gears, you likely won't see anything wrong, but something is. Answer in description...
