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As promised in the video, here are some pics to help explain...

I chose to use the American style bottom bracket for simplicity in the looks department...

Started with a BMX bottom bracket with the seat post still attached, tacked it to the frame and checked everything was level and centred:

18231125503_158dd6be69_z.jpg


Added two BMX fork legs cut and hand-notched to suit:

18664065050_d457e3ba02_z.jpg


Welded them solid to the bottom bracket:

18665587999_a725cd2ba1_z.jpg


Cut the tacks holding it to the frame and removed the old seat post:

18851753655_4520d5d463_z.jpg


Welded it back on, using the notched ends, a straight edge along the frame and reference marks on the frame to make sure it was in the correct place:

18825501826_061266c305_z.jpg


Thinking about possibly making a filler plate, depends on what I do with the tank... It may even end up covered in padded kangaroo leather...

18851754155_56f342efbd_z.jpg


Started work on the jackshaft drop out on the final drive side, this needs to be fairly strong as the forces are fairly large, I used the curves out of the two chair frames I chopped up for the rear triangle on "Mad Maxine" and some 2"x1" thick wall RHS:

18851753345_5104858cb6_z.jpg


Added front supports using some more chair frame parts:

18231125383_20f208107b_z.jpg


Note the threaded axle adjuster made from an old racer front axle:

18854481771_961d2f26f9_z.jpg


That was it for the day...

Now that I have sat down and had some lunch and can think a bit clearer, I am pretty sure I have a solution for the rear brake that will also simplify things a huge amount, so there should be some good progress on the rest of the drivetrain soon!

Stay tuned!

Luke.
 
You sir are a true craftsman, just amazing work you do :praise:
 
As promised in the video, here are some pics to help explain...

I chose to use the American style bottom bracket for simplicity in the looks department...

Started with a BMX bottom bracket with the seat post still attached, tacked it to the frame and checked everything was level and centred:

18231125503_158dd6be69_z.jpg


Added two BMX fork legs cut and hand-notched to suit:

18664065050_d457e3ba02_z.jpg


Welded them solid to the bottom bracket:

18665587999_a725cd2ba1_z.jpg


Cut the tacks holding it to the frame and removed the old seat post:

18851753655_4520d5d463_z.jpg


Welded it back on, using the notched ends, a straight edge along the frame and reference marks on the frame to make sure it was in the correct place:

18825501826_061266c305_z.jpg


Thinking about possibly making a filler plate, depends on what I do with the tank... It may even end up covered in padded kangaroo leather...

18851754155_56f342efbd_z.jpg


Started work on the jackshaft drop out on the final drive side, this needs to be fairly strong as the forces are fairly large, I used the curves out of the two chair frames I chopped up for the rear triangle on "Mad Maxine" and some 2"x1" thick wall RHS:

18851753345_5104858cb6_z.jpg


Added front supports using some more chair frame parts:

18231125383_20f208107b_z.jpg


Note the threaded axle adjuster made from an old racer front axle:

18854481771_961d2f26f9_z.jpg


That was it for the day...

Now that I have sat down and had some lunch and can think a bit clearer, I am pretty sure I have a solution for the rear brake that will also simplify things a huge amount, so there should be some good progress on the rest of the drivetrain soon!

Stay tuned!

Luke.
How about a filler plate that mimics the wheels. That idea would look trick if you ever did motomags for this in the future too, Luke.


- by Gigmata
 
Luke, will the jackshaft be supported on the opposite side? With it mounted only on one side, it seems like it would put a tremendous amount of strain on the axle from the torque. :39:
Yes, it will have a dropout on the other side, that will be the next thing I do, it wont have to be quite as robust though, as it will not be transferring any braking forces...
Very nice work.
Awesome!
Those lines are great!
I want to take it for a ride.
Speechless!!!
Thanks KJV, Chepe and GSC! :)
How about a filler plate that mimics the wheels. That idea would look trick if you ever did motomags for this in the future too, Luke.
- by Gigmata
Loving this idea Gig! I might just do that yet! :thumbsup:

Luke.
 
I have been so busy and just trying to find the time to squeeze in some work on my build I have not been keeping up with any of the builds I am following. Finally got some time to take a look at yours and it look great, I cant wait to see it completed.
 
Maybe make one of these "spiderwebs" to fill the gap by the BB?
!BT(7Kd!!2k~$(KGrHgoOKiEEjlLmfVPLBKIFFlMTy!~~_12.JPG
I love spiderwebs and have used them before, but OCC kind of destroyed them for me, suddenly everybody had them... :crazy2:
I have been so busy and just trying to find the time to squeeze in some work on my build I have not been keeping up with any of the builds I am following. Finally got some time to take a look at yours and it look great, I cant wait to see it completed.
Thanks for dropping in ThatGuy! Looking forward to more on yours too!

Been trying to lock down some sort of timetable to make sure this build meets the deadline with everything done.
Looks like I will need to have the drivetrain sorted by the end of this week and a rolling, riding bike (fork done too) by the end of this month.
The remaining time is for powder coating, leather work and photos...

I think I can do it if the weather and my health cooperate...

Luke.
 
Thanks for dropping in ThatGuy! Looking forward to more on yours too!

Been trying to lock down some sort of timetable to make sure this build meets the deadline with everything done.
Looks like I will need to have the drivetrain sorted by the end of this week and a rolling, riding bike (fork done too) by the end of this month.
The remaining time is for powder coating, leather work and photos...

I think I can do it if the weather and my health cooperate...

Luke.

Yeah I am trying to do the same, I have some other plans for the bike that might not get done till after the buildoff like powder coating and a few other things.
 
As promised in the video, here are some pics to help explain...

I chose to use the American style bottom bracket for simplicity in the looks department...

Started with a BMX bottom bracket with the seat post still attached, tacked it to the frame and checked everything was level and centred:

18231125503_158dd6be69_z.jpg


Added two BMX fork legs cut and hand-notched to suit:

18664065050_d457e3ba02_z.jpg


Welded them solid to the bottom bracket:

18665587999_a725cd2ba1_z.jpg


Cut the tacks holding it to the frame and removed the old seat post:

18851753655_4520d5d463_z.jpg


Welded it back on, using the notched ends, a straight edge along the frame and reference marks on the frame to make sure it was in the correct place:

18825501826_061266c305_z.jpg


Thinking about possibly making a filler plate, depends on what I do with the tank... It may even end up covered in padded kangaroo leather...

18851754155_56f342efbd_z.jpg


Started work on the jackshaft drop out on the final drive side, this needs to be fairly strong as the forces are fairly large, I used the curves out of the two chair frames I chopped up for the rear triangle on "Mad Maxine" and some 2"x1" thick wall RHS:

18851753345_5104858cb6_z.jpg


Added front supports using some more chair frame parts:

18231125383_20f208107b_z.jpg


Note the threaded axle adjuster made from an old racer front axle:

18854481771_961d2f26f9_z.jpg


That was it for the day...

Now that I have sat down and had some lunch and can think a bit clearer, I am pretty sure I have a solution for the rear brake that will also simplify things a huge amount, so there should be some good progress on the rest of the drivetrain soon!

Stay tuned!

Luke.
This bike is really awesome great vision & fab work [emoji106][emoji88][emoji232]


Sent from my iPhone using Tapatalk
 
Just pretty cool, some leather sounds appropriate.


Sent from my iPhone using Tapatalk
 
Been pages since we've seen a mock or a sketch...
What's this thing supposed to look like?
Just to freshen up my old memory...

Carl.
 
Last edited:
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