My life with Python trikes Mk1 , Mk1.5 , Mk2 ?

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I have just posted details of what I am using on my eLecTricks thread. You may be able to modify it. The front mount is pictured, the rear isn't, yet, as it hasn't been finalised. What the top seat connection point will consist of is two telescoping tubes: Outer pieces will be hinged from the seat, spaced equally each side of centre. The inner, or bottom telescoping parts will be attached to a bracket lower than the height of seat attachment - either side of your top of seat support, if you like. Their lower ends will be attached at a pivot point. The telescoping tubes will be fixed in position with two pins, allowing multi-positions for seat rake angle adjustment.

Remove the pins, and the seat just lifts right out.
 
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I have just posted details of what I am using on my eLecTricks thread.
Remove the pins, and the seat just lifts right out.
Thanks for this , I have some reservations about the seat mount and being held purely by your bottom ?

It looks to be very narrow and it is amazing how much shuffling and off centre activity there is mounting and dismounting ? I would be afraid of the whole think twisting on the rear mounts ?
 
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Since I know where the seat needs to be and have no interest in ' adjustment ' I think the easiest solution is to use the existing seat sub-frame and drill the mounting holes higher so they go through the middle of the main frame instead of under it ?

I can put some anti-crush tubes in the frame and use 8mm QR's to hold the seat [ I am told they are available ]

It may then be possible to remove the rear one and slacken the front one and it will tip forward , if the front lip of the seat is to close to the frame for that I can remove the front one and take the seat off ?
 

SirJoey

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My cozy little nook in the corner!
This is really coming along nicely, Paul!

Did you already have previous woodworking experience & skills,
or are you now in uncharted territory, so to speak? Either way, nice work! (y)

***
 
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This is really coming along nicely, Paul!


Thanks , except for the fact I can't fit or remove it :(


Did you already have previous woodworking experience & skills,
I have done some [ and buried some :rolleyes:] neither count as woodworking experience & skills !

Either way, nice work! (y)
Due to soft focus and clever camera angles I assure you...
 
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Ok I need to make the seat & frame either tilt forward as a unit OR be easily removable ?



I have the above seat mount frame because the seat is a plastic moulding and in my view not rigid enough to be mounted directly from it's 2 mount points [ it maybe but I don't want to crack them proving it isn't ! ]

This shows the 2 sets of tabs I welded to the seat mount frame and clamped it over the frame like below



So I need the whole frame and seat to either :-

a) have some form of Q/R at the back [ left in picture ] and a pivot at the front [ right in picture ]

or

b) have a Q/R mount at both ends for it's quick removal ?

or

c) something else ?

So tried a quick and dirty fix.

I tried raising the seat mount frame and drilling directly through the main frame inline with the mounting tab holes and seeing if I could get it to pivot on the existing mounting tabs and their front bolt ? then just use a Q/R for the rear mount..

That failed miserably as the holes in each pair of tabs turned out not to be inline from side to side which is ok when the mounting bolts go under the frame but not when they pass through the frame , of course the front was the worst one of the two I wanted it to pivot on..

all the best Paul
 
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Kevin

Hopefully you have less constraints than me , I am about to start with a blank sheet of paper as existing mount cannot be altered to meet new criteria without making it even heavier than it is [ already way to heavy ].

So on with thinking cap and out with the grinder , shame I drilled 4 holes in the main frame I no longer need DOH :mad:
 
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Stormbird: Your frame should now be lighter and I have a couple of similar excess-weight-removal things as well.

My modifications have been quite challenging as well. I ended up having to remove the top spreader from the seat frame and replace it with another that allows the seat to sit about 40mm closer to the rear wheel, also making for an easier and lighter fitting for the adjuster. The supporting telescoping tubes will now be placed much further apart and supported on bracing from the tow hitch that will form the centre of the cargo bay. For the first time, I should be able to sit in the seat, and work out where a couple of things in front of it need to be. The dashboard framing will be next, bracing it to the rear bulkhead frame.

I have had a couple of those two steps backward things lately but will soon be beyond where I had to backup and try some modifications.

It's all fun. (Repeat 10 times each evening before bed.)
 
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