Took the day off yesterday, had to let my body recover a bit, just finished mowing the lawn here, so not sure much will happen today either, got plans for tomorrow with my Bro-in-law, so that is out too, but progress will be made I promise!Luke.
(MBBO#05 Class 2) ★★★ ¡ʇdᴉɹɔs ǝɥʇ dᴉlℲ ★★★ (SOLD to finance exciting new venture!)
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Took the day off yesterday, had to let my body recover a bit, just finished mowing the lawn here, so not sure much will happen today either, got plans for tomorrow with my Bro-in-law, so that is out too, but progress will be made I promise!Luke.
Got bored, so I went outside and did some work:
First made this test stand:
Then ground the original chainrings off a crank and got ready to weld this on:
Tacked and then on to the new test stand to check for straight:
Repeated the process with the other crank arm:
That's right! A bit of dual drive happening here!
Everyone's favorite part of the '50 years' build was the dual drive, so I'm giving it another showing.
Luke.
First made this test stand:
Then ground the original chainrings off a crank and got ready to weld this on:
Tacked and then on to the new test stand to check for straight:
Repeated the process with the other crank arm:
That's right! A bit of dual drive happening here!
Everyone's favorite part of the '50 years' build was the dual drive, so I'm giving it another showing.
Luke.
I know there are some kids who view the site, so I just want to preface this next part by saying that this tank has had the valve open to atmosphere for over six months to vent any remaining gas, then about a month ago I carefully drilled a hole in the bottom and have been flushing it with water since, so there was no chance of any gas remaining in the tank.
Propane or gas is not something you want to take chances with!
OK, safety notice over.
Started by cutting the hole in the base bigger:
Then removed the top:
Then proceeded to spend the next hour removing the remaining powdercoat with a wire wheel!
Cut the tank in half at the seam:
At which point it was discovered that I had accidentally made two large fire alarm bells!
Recorded a video, but apparently had the wrong setting on my phone so no sound, you will just have to trust me that these things are LOUD!:
Curved up a strip of steel and welded it to one side of the tank to widen it:
Then welded 6 pieces of 1/2" tubing to it:
Cut the whole thing in half again!
Why would I go to all that effort just to cut it in half again? Why, so I can bolt it together with these very sexy scooter axle bolts:
That was it for my day, very happy with progress!
There might be some out there who are starting to work out what I am doing, but just to keep the suspense going a little longer, if you think you have it figured out, send me a message and I will tell you if you are right, once 5 people have guessed correctly we will let everyone know. Sound good?
Luke.
Propane or gas is not something you want to take chances with!
OK, safety notice over.
Started by cutting the hole in the base bigger:
Then removed the top:
Then proceeded to spend the next hour removing the remaining powdercoat with a wire wheel!
Cut the tank in half at the seam:
At which point it was discovered that I had accidentally made two large fire alarm bells!
Recorded a video, but apparently had the wrong setting on my phone so no sound, you will just have to trust me that these things are LOUD!:
Curved up a strip of steel and welded it to one side of the tank to widen it:
Then welded 6 pieces of 1/2" tubing to it:
Cut the whole thing in half again!
Why would I go to all that effort just to cut it in half again? Why, so I can bolt it together with these very sexy scooter axle bolts
:
That was it for my day, very happy with progress!
There might be some out there who are starting to work out what I am doing, but just to keep the suspense going a little longer, if you think you have it figured out, send me a message and I will tell you if you are right, once 5 people have guessed correctly we will let everyone know. Sound good?
Luke.
I saw a bike a couple of years ago at a rat rod car show that had a propane flame thrower on it...was actually pretty cool/hot.That would make it hard to hook up the flame thrower...
Luke.
Carl.
sent from a phonebooth...
Last edited:
I managed to do a little work this morning:
Cut the spokes for the rims:
Trimmed down two of the steam pipe reducers that will be used on this build:
Not much, but it is progress!
Current guess tally:
4 guesses, 1 correct answer.
Congrats @OneHorsePower, you are on the right track!
Luke.
Cut the spokes for the rims:
Trimmed down two of the steam pipe reducers that will be used on this build:
Not much, but it is progress!
Current guess tally:
4 guesses, 1 correct answer.
Congrats @OneHorsePower, you are on the right track!
Luke.
I managed to steal 30 mins to build the rims today:
Drawing inspiration from my very first build on RRB for this one, not many will remember it because it never got finished due to some rookie design errors involving gearing and clearance issues.
The build was an over ambitious project called 'FatBob', it was made from 2" square tubing with pie cut bends and single sided hubs using 3 piece crank bottom brackets as the axles. It was also going to get an air tank and a truck air horn just for fun:
I am sure you can see the influence this design had on some of my later bikes, the motorbike tire idea went straight into the '50 Years' bike, then RRBBO#08 started a couple of months later and 'BigJim' came along with very similar dimensions to this but with a jackshaft drivetrain, the front wheel and tire from this went on to become the back wheel on my swing bike, then last year came 'Pedro' with the super wide bottom bracket that found inspiration here as well, and of course 'Outlaw' got a slightly different version of the original single sided hub idea.
But anyway, this time I am going back to my original square taper 3 piece bracket axle/hub idea, so that is where the other lathed down crank pieces go, into the wheels!
Jigging up on the test stand using welders magnets:
Add the rim:
Spin to check for true:
Repeat for the other wheel, both done, ready to take in to get the whitewall tires fitted up!
Just got back with the new tires fitted:
They are going to look great after a clean up!
Any more guesses out there? There is not much more I can do before I give the whole game away...
Luke.
Drawing inspiration from my very first build on RRB for this one, not many will remember it because it never got finished due to some rookie design errors involving gearing and clearance issues.
The build was an over ambitious project called 'FatBob', it was made from 2" square tubing with pie cut bends and single sided hubs using 3 piece crank bottom brackets as the axles. It was also going to get an air tank and a truck air horn just for fun:
I am sure you can see the influence this design had on some of my later bikes, the motorbike tire idea went straight into the '50 Years' bike, then RRBBO#08 started a couple of months later and 'BigJim' came along with very similar dimensions to this but with a jackshaft drivetrain, the front wheel and tire from this went on to become the back wheel on my swing bike, then last year came 'Pedro' with the super wide bottom bracket that found inspiration here as well, and of course 'Outlaw' got a slightly different version of the original single sided hub idea.
But anyway, this time I am going back to my original square taper 3 piece bracket axle/hub idea, so that is where the other lathed down crank pieces go, into the wheels!
Jigging up on the test stand using welders magnets:
Add the rim:
Spin to check for true:
Repeat for the other wheel, both done, ready to take in to get the whitewall tires fitted up!
Just got back with the new tires fitted:
They are going to look great after a clean up!
Any more guesses out there? There is not much more I can do before I give the whole game away...
Luke.
- Joined
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Am I allowed to guess as well Luke? Love those 4 spokes
Love those 4 spokes
Am I allowed to guess as well Luke?
You already know what is happening from when we were throwing ideas around months ago! These are the easiest of my fat wheels to make, no need for a jig or anything, did it before on the 50 years build but covered the spokes with wheel discs by the end:
Luke.
if my assumptions are good,these should mate and create a new born Monster
Heaviest three piece rim on earth.... i like it.
these should mate and create a new born Monster
I certainly hope so!These were heavier by about double!:
Still rode well though!
Luke.
- Joined
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Those 20's
I remade the video, they are not as loud or as clear toned as they were before the stuff was welded to them ,but it does give you an idea:
Did quite a bit of work today, including a lot of math and figuring dimensions out.
Started by cutting a bottom bracket in half and welding the halves into the uncut steam pipe adaptors:
Then extended two bottom bracket axles, one by 95mm, the other by 110mm:
All welded up:
Then I had to work out how far the bottom brackets needed to extend into the propane tank piece, here is where many mock-up's and the math was involved because the freewheels are offset due to the brake discs, which moves the axles closer to one side than the other:
Worked out that on the left side, the bottom bracket needed to protrude into the tank by 20mm, so I placed a stack of steel under the hole and measured until it was right:
Tacked on top, then welded on the inside (Still smoking in the pic):
Repeat the process for the other side, but this time it needed to go in 35mm, same story, here it is finished:
Then cut the excess bottom bracket sleeves from the outside and tacked the two cut down steam pipe adaptors over the holes in the tank halves:
Assembled the axles in the holes to measure how much pipe was needed to fill the gap:
Both sides came to 15mm, I was very happy at this moment, because them being the same meant my math was correct!
By the way, have you worked it out yet? 
Cut two pieces of pipe at 15mm, pulled the axles back out and removed the bearing cups from the bottom brackets, then bolted the tank halves back together and slid a piece of 1" tube through to ensure everything was perfectly straight:
Tacked every joint:
Fully welded:
Here is a last photo showing the parts all together in case you are still struggling to work it out:
That was a big day's work! Pretty sure I will be taking it easy tomorrow, but I may assemble the whole contraption with the wheels and all and snap some pics, because all this has been in my head for months and I just want to see it all together!
Luke.
Did quite a bit of work today, including a lot of math and figuring dimensions out.
Started by cutting a bottom bracket in half and welding the halves into the uncut steam pipe adaptors:
Then extended two bottom bracket axles, one by 95mm, the other by 110mm:
All welded up:
Then I had to work out how far the bottom brackets needed to extend into the propane tank piece, here is where many mock-up's and the math was involved because the freewheels are offset due to the brake discs, which moves the axles closer to one side than the other:
Worked out that on the left side, the bottom bracket needed to protrude into the tank by 20mm, so I placed a stack of steel under the hole and measured until it was right:
Tacked on top, then welded on the inside (Still smoking in the pic):
Repeat the process for the other side, but this time it needed to go in 35mm, same story, here it is finished:
Then cut the excess bottom bracket sleeves from the outside and tacked the two cut down steam pipe adaptors over the holes in the tank halves:
Assembled the axles in the holes to measure how much pipe was needed to fill the gap:
Both sides came to 15mm, I was very happy at this moment, because them being the same meant my math was correct!
By the way, have you worked it out yet?
Cut two pieces of pipe at 15mm, pulled the axles back out and removed the bearing cups from the bottom brackets, then bolted the tank halves back together and slid a piece of 1" tube through to ensure everything was perfectly straight:
Tacked every joint:
Fully welded:
Here is a last photo showing the parts all together in case you are still struggling to work it out:
That was a big day's work! Pretty sure I will be taking it easy tomorrow, but I may assemble the whole contraption with the wheels and all and snap some pics, because all this has been in my head for months and I just want to see it all together!
Luke.
- Joined
- Jul 4, 2015
- Messages
- 382
- Reaction score
- 825
HOLY CRAP! That turned out AWESOME!
Crazy luke.. solved trike diferential issues....
By the way i was suggesting maybe the tank was going to be centers on a rim... bolter to a ring
By the way i was suggesting maybe the tank was going to be centers on a rim... bolter to a ring
You got it @pholTmonx! And it sounds like you figured out why I did all that work too!
This will be a proper 2 wheel drive trike, it should work almost like a Detroit Locker differential, the slowest wheel will receive the drive at all times, while the faster wheel can spin as fast as it wants.
There is no real need for the tank diff pumpkin/cover, it could all be done in the open and exposed, but I really wanted to play on the whole 'car differential' theme and try and make it look a bit like one too...
Luke.
That was actually the most common guess I was messaged, a few people had that idea!By the way i was suggesting maybe the tank was going to be centers on a rim... bolter to a ring
Luke.
This leaves me speechless! 
I like the new digs Luke! The OUTBACK40...?
