What blows me away is that you can actually READ the disk on the 4.5" disk grinder THAT IS SPINNING AT OVER 10000RPM!!!
Not having access to a lathe, I had to get creative. This steel BMX post has to be turned down from 22.2mm to 21.0 to be interference fit into a steerer tube. In order for the grinding to remain concentric, I've mounted the post into a drill chuck by way of a 1" star nut. This setup worked remarkably well, and it was easy to get the tube to the right diameter.
4 comments:
I was guffawing at your measurements down to .1mm, now I know you're just batshit nuts. Good luck! And pick up a bigger hammer, you'll need it before you're through.
Scoff all you want Gabe, I have digital calipers =]
You know how we roll at Proj-Batshit nuts.
Gabe was trying to get the Freakfiets running the night before the show, and was asking me some questions about American BBs. I was unable to give him the short answer he needed about how to get the thing out because I had to go into a longwinded explanation about chainline and different spindle specs. Proj-Batshit nuts, indeed.
hey, the BB hasn't fallen off yet!
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