- Joined
- Nov 2, 2012
- Messages
- 415
Maybe since it's summer, it's kinda slow around here. So offered for nothing more than pure entertainment value is my current bike project and my Atlas lathe's role in it. Here I'm making a custom stem (the part that connects the handle bars to the steerer tube.) This version is a threaded, quill stem (old skool for you folks in the know...)
Drilling out the extension tube for the quill:
![Bike Making1.JPG Bike Making1.JPG](https://www.hobby-machinist.com/data/attachments/21/21632-7698487112804ba6b32961b5aa526704.jpg)
Another shot:
![Bike Making2.JPG Bike Making2.JPG](https://www.hobby-machinist.com/data/attachments/21/21633-d85539873ee2e02d8266b03ce0e7f499.jpg)
Brazed up with a cap. I broke my parting-off blade making that one. Live and learn, I guess. Still have all my fingers, so I'm good.
![Atlas Bike Making3.JPG Atlas Bike Making3.JPG](https://www.hobby-machinist.com/data/attachments/21/21634-20350e92333555151113a3abf2fdcfaf.jpg)
Nearing completion with the cap, wedge and the binder that still needs a home. The center tube is for the brake cable, silver-soldered in place. The lower portion is stainless, and the upper part is bored-out 4130 large enough for a cable end to nestle.
![Atlas Bike Making4.JPG Atlas Bike Making4.JPG](https://www.hobby-machinist.com/data/attachments/21/21635-0c66ff7732840d6d14646a4c6bf47c53.jpg)
Shot of the cleaned up cap. Yes, a few pin holes, but otherwise not bad. The bottom half of the quill was turned down on the lathe to make room for powder coat. A grind-job would be better, but it works okay w/ HHS.
![Atlas Bike Making6.JPG Atlas Bike Making6.JPG](https://www.hobby-machinist.com/data/attachments/21/21636-66a8b1d12c51eaaa57b0b242c68b6f53.jpg)
The intended recipient. Hand-built frame, fork and rear bag support. It's like a monster truck of commuting bikes, but it sure is fun to ride. Paint to follow this winter when the rains come back (I'm in the SF area where summer is dry.)
![Smudgemo.JPG Smudgemo.JPG](https://www.hobby-machinist.com/data/attachments/21/21637-fcaa07a6c57569a1f4ec6f778029a352.jpg)
Should you want to see the progression of how a bike is built (at least how I do it, right or wrong), the set for this rig is here: http://www.flickr.com/photos/smudgemo/sets/72157630427305830/. Having a lathe is honestly an excuse to make parts way more involved than you'd ever need, but that's the fun of building custom stuff, right? Any excuse to bust out the lathe.
-Ryan
![Smudgemo.JPG Smudgemo.JPG](https://www.hobby-machinist.com/data/attachments/21/21637-fcaa07a6c57569a1f4ec6f778029a352.jpg)
Drilling out the extension tube for the quill:
![Bike Making1.JPG Bike Making1.JPG](https://www.hobby-machinist.com/data/attachments/21/21632-7698487112804ba6b32961b5aa526704.jpg)
Another shot:
![Bike Making2.JPG Bike Making2.JPG](https://www.hobby-machinist.com/data/attachments/21/21633-d85539873ee2e02d8266b03ce0e7f499.jpg)
Brazed up with a cap. I broke my parting-off blade making that one. Live and learn, I guess. Still have all my fingers, so I'm good.
![Atlas Bike Making3.JPG Atlas Bike Making3.JPG](https://www.hobby-machinist.com/data/attachments/21/21634-20350e92333555151113a3abf2fdcfaf.jpg)
Nearing completion with the cap, wedge and the binder that still needs a home. The center tube is for the brake cable, silver-soldered in place. The lower portion is stainless, and the upper part is bored-out 4130 large enough for a cable end to nestle.
![Atlas Bike Making4.JPG Atlas Bike Making4.JPG](https://www.hobby-machinist.com/data/attachments/21/21635-0c66ff7732840d6d14646a4c6bf47c53.jpg)
Shot of the cleaned up cap. Yes, a few pin holes, but otherwise not bad. The bottom half of the quill was turned down on the lathe to make room for powder coat. A grind-job would be better, but it works okay w/ HHS.
![Atlas Bike Making6.JPG Atlas Bike Making6.JPG](https://www.hobby-machinist.com/data/attachments/21/21636-66a8b1d12c51eaaa57b0b242c68b6f53.jpg)
The intended recipient. Hand-built frame, fork and rear bag support. It's like a monster truck of commuting bikes, but it sure is fun to ride. Paint to follow this winter when the rains come back (I'm in the SF area where summer is dry.)
![Smudgemo.JPG Smudgemo.JPG](https://www.hobby-machinist.com/data/attachments/21/21637-fcaa07a6c57569a1f4ec6f778029a352.jpg)
Should you want to see the progression of how a bike is built (at least how I do it, right or wrong), the set for this rig is here: http://www.flickr.com/photos/smudgemo/sets/72157630427305830/. Having a lathe is honestly an excuse to make parts way more involved than you'd ever need, but that's the fun of building custom stuff, right? Any excuse to bust out the lathe.
-Ryan
![Bike Making1.JPG Bike Making1.JPG](https://www.hobby-machinist.com/data/attachments/21/21632-7698487112804ba6b32961b5aa526704.jpg)
![Bike Making2.JPG Bike Making2.JPG](https://www.hobby-machinist.com/data/attachments/21/21633-d85539873ee2e02d8266b03ce0e7f499.jpg)
![Atlas Bike Making3.JPG Atlas Bike Making3.JPG](https://www.hobby-machinist.com/data/attachments/21/21634-20350e92333555151113a3abf2fdcfaf.jpg)
![Atlas Bike Making4.JPG Atlas Bike Making4.JPG](https://www.hobby-machinist.com/data/attachments/21/21635-0c66ff7732840d6d14646a4c6bf47c53.jpg)
![Atlas Bike Making6.JPG Atlas Bike Making6.JPG](https://www.hobby-machinist.com/data/attachments/21/21636-66a8b1d12c51eaaa57b0b242c68b6f53.jpg)
![Smudgemo.JPG Smudgemo.JPG](https://www.hobby-machinist.com/data/attachments/21/21637-fcaa07a6c57569a1f4ec6f778029a352.jpg)