Looking pretty good there Paul.Hi all
Tilter #3 = 76 miles
Oh sh*t moments 0/10
So now it is becoming very routine as we crawl towards 100 miles
Rolling the Tilter#4 out into the day light ?
So as can be seen rear end overlaps axle , giving a main spine :-
Not to shabby , although before I weld it there I will have it in line vertically and see what the angle is.
The cheesy welds on the elastomer mount are because there seems to be a Zinc coating on the steel and no amount of cleaning seems to remove it.
The mount is only needed because the elastomer anti crush tube passed straight threw 2 plug welds holding the inner joint sleeve in place , so I passed the anti crush tube through both sides and welded it top and bottom.
It has :-
Seat height <> 18"
w/b <> 40"
track 24" [ centre of tyres ]
overall width will be 28"
I will add 3 tubes through the frame at the rear for 8mm bolts in the hope they will be in the right place for a pannier rack , could look neater than loads of clamps around frame.
Light brush with the weld improver and a lick of paint ...
Well done that man! Will the prototype make a seamless transition to being the "real thing" I wonder?Hi all
So after mulling over the options with DannyC and the promise of jigs and clamping big right angled lumps of MDF ...
What did I do .....
Yep winged it
It is only a prototype after all.
I realised I would have to cap off the main spar if they could not being butted together into a ' T ' shape [ they are overlapped in a ' T ' shape ]
So I cut a piece of 3mm plate bit bigger width wise and about 2.5 times bigger than the 1.5" tubing and welded it to the spine piece on all 4 sides.
That gave me two places to clamp the 2 parts together , vertically over the joint and horizontally under the joint.
When it was clamped and measured to be 90' +/- sod all , I could weld the 2 parts together on all 6 sides , so joint is now very strong and no need for gussets [ sorry DannyC ]
So we have narrower track...
More vertical wheels with a little camber , maybe 0.25" at top.
hey and I got the rear end the right way around AND the right way up !
So the black piece is original main spine and brown bit new main spine , quite a height difference.
To do ?
Flap disc down and paint
transfer over seat and brake cables
Thanks , baby steps..Well done that man!
Well it certainly isn't the ' real ' thing to many flaws , however it does incorporate all the features I would like to see in the real thing.Will the prototype make a seamless transition to being the "real thing" I wonder?
I could be wrong Paul (I often am), but I understand the SA Drum hubs to be "Handed" because the backplates are actually sold as "Left" & "Right" with different part numbers HSB519 (LEFT) and HSB518(RIGHT).Hi all
Tilter #3 = 88 miles
Oh sh*t moments 0/10
So now it is becoming very routine as the next ride should see 100 miles
In a phone conversation with DannyC he tried to suggest the rear brakes were on the wrong way around ?
Now this is an interesting conundrum ?
Is there a right and wrong way ?
Most tadpoles have the cables pointing backwards as they leave the back plate
The Python I ride now have the cables pointing forwards , as they leave the back plate.?
He is correct despite having Front and Top written on the rear axle AND welding it that way I had intended this to be like all my others with the cables pointing forward , the cables will now have to come in from the rear so the same as a tadpole ?
Popshot is right, it IS purely cosmetic (actuator placement and where it points (front/rear).I think they are only marked left and right to distinguish them from a sales point to ensure you get a matched pair. If you look inside the drum there is a symmetry of moving parts down a centre vertical. Given this symmetry the brake should work just as well either way round. The only thing that will change is the leading and trailing designations swap shoes.
I am simple saying you cannot apply car style explanations to trike situations , due to the difference in weights and speeds they behave differently ?Not sure where quantum physics comes in to this. It's simply a function of the actuating system that means it works equally well either way and would do so regardless of the vehicle weight.