I've got to catch you up on two days worth of activity, so here we go...
When we last left off, I had busted out the chainstays on Eric's bike and bent up the seat stays. These were some very precise buggers, as Eric wants maximum room for mud build up but I also have to balance that with meeting the request for canti bosses, which have a very narrow window of spec'd width for proper operation. I was able to get 3 inches of clearance inside the stays while pushing the canti operation into the acceptable zone.
Here's a shot of the mocked up stays...
A lot of folks ask..."just how tight do your miters need to be?" Surface contact the entire circumference of the miter is very important for the strength of the frame. Here's a shot of the seatstays, one of the most difficult areas to get to meet perfectly as you are dealing with compound miters with multiple angles of contact.
I was all ready to braze up the dropouts on Eric's frame when I quickly realized I was out of Oxygen in the tanks to get the job done, so I turned up the midnight oil a bit and knocked out another 8 Luvs of the October order...never a moment to sit idle.
This morning had me running the blaster before sunrise, enjoying the combination of low lying mist in the farm fields and an incredible orange orb of a morning sun, and meeting the welding supply guys to open up.
Once back, it is back to work on the rear stays.
I vent all the tubes of the frame for two reasons; to allow for internal moisture evaporation and to facilitate rust prohibitive treatment. Here's a shot of how I mark out and drill using a center drill the vent holes in the seat tube where the seat stays meet.
Next stop, I hand miter the seat stay brace. Yep, despite all the cool kit I have to cut tubes, I still use a file for some of the pieces, as it is the most efficient method.
Notice the new sandals ^... I just got two pair from Germany. I'm good to go for another 5 years
And Eric's roughed in frame...
I should have more bars to send out tomorrow afternoon as well, as long as I can get the powder applied in time to hit the post office before it closes, here's to keeping fingers crossed.