Looks like you made the right choice and great job taking those stops off.
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Looks like you made the right choice and great job taking those stops off.
Thanks Jake.
Are you suggesting 69.75° HT angle? My first plan was to go 69.5° HT angle but went for the 70.5° this time because I will ride this frame fully rigid during the winter. I'll build another 29er frame later so I'll try different geo that time.
The front triangle is now almost done, the gusset is tacked in. I will finish the welding once the frame is out of the fixture. Now I'm trying to figure out how to do the chainstays.
http://i1237.photobucket.com/albums/...i/runko/27.jpg
I meant that i would steepen it to 71.25* It's more for my own riding style than anything else but it think that only the really small bikes and riders benefit from the super slack head angles on 9r's and yours isn't that.
Your bike will be fine, don't even give it another thought. keep us posted!
Its looking good! Have you considered brazing the cable guides on, rather than welding them? Either way is fine, of course...just curious.
Dave
Oop! Never mind....I saw where you explained your reasoning above about the cable stops.
Small update
I got some v-blocks made for the chainstay jig while I was waiting on the crankset to arrive. I wanted to have the crankset before mitering the chainstays to make sure there's enough room for the 156mm q-factor.
The chainstays are now slotted for the dropouts. Tomorrow I'll shape ends of the chainstays and weld them. No capping needed for inside of the DO/CS joint.
http://i1237.photobucket.com/albums/...i/runko/29.jpg
http://i1237.photobucket.com/albums/...i/runko/30.jpg
very cool, now you've got me itching to build a mtb frame
It's finally done and ridable. No build pics of the stays because it did not go as planned. Chainstays are 6mm shorter than I planned to at 419mm, but there's still enough room between the tire and the seattube for 2.4" Ardent. The seatstays were easier to do than I thought. I'm not happy with the chainstays as they are way too outboard on the BB shell and I had to dimple the CS for the chainring clearance.
I was able to braze the cable guides quite easily with my limited equipment once I got proper flux and silver rods. I didn't even bother to paint it, since I'm not happy of the finish of the welds.
I really like how it rides, very nimble and easy to steer, it just goes where you want it to go. I'm glad that I read lot of posts about the front center etc. First plan had 20mm longer front center than I ended building.
I'm already planning the next build, which will be a road bike.
Thank you for everyone who have helped me! I Really Appreciate it!
Crappy pic.
http://i1237.photobucket.com/albums/...ps7f1d9d24.jpg
Nice bike!
Just in case (I arrived late to the discussion), for your questions about braze or tig de cable stops, my experience has been that welding cable stops at butted areas (0,38mm spirit tubes) will make failure (specially if in delicated areas as the downtube shifter bosses) as welding does melt the base material, wich is much more "agressive" to the material than brazing, wich if you go for silver brazing will be a pretty "cold" join and the brazing would be kind of milder with the tube. At least that's how I've experienced it.
Cheers
It looks good enough from the distance of the photo. What I discovered after building mine was the average rider could not spot any of the mistakes I made.
Can you give some details on your jig? Aside from the extrusion, what parts did you make/have made just for you vs. sourcing it pre-made?
From the distance it looks pretty good, the front trinangle is pretty nice, but I'm not happy with the stays. You're right that the average rider could not spot the faults, but I don't care about that as I like how it rides and that matters most this at time. On the next frame I'll try to fix the errors I made and learn something new.
Regarding the jig, it's based to Kris's desing and modified to my own budget. I got every part on the jig made just for me, luckily I found very reasonably priced machinist. I had to add aluminum plates to hold on horizontal and vertical extrusions together later as the jig seemed to be too flexible in that area, those plates are only pieces I made myself and I'm very proud of them as they are so pretty ;)
I should have used heavier extrusion and there's some other smaller things that should be done differently. In the future I'll replace the extrusions with heavier ones and the rear axle holder will be replaced too.