Thanks Clem.The last question was directed at Hiko's post not yours. Do you have any comment about the linkage issue?I wondered whether your set up provided some stability because it was fixed though flexible at the plastic joints.My present set up allows the front wheel to flop without hindrance

Hi Tryhard follow Clems advice and you will be fine Here is one of those beach chairs that he spoke of
The back could be laid back more and the whole thing lower for your purpose
Note there is no cross brace at the back that was mentioned earlier
Great to see the rapid progress you are making
Keep those pictures coming I am sure there are many who are interested

Just another thought...When you put the bathroom scales under the front wheel level up the yacht by putting similar height blocks under the rear wheels.

All advice at this juncture gratefully received. Clem- a question.In a previous post on this page you suggested that the seating position should be fixed by a plank sitting on the axles with the back edge touching the tyres.Are you now saying the seating position can be forward or back from this point?

I have already bought a crash helmet

I have decided to make a back for the seat.I toyed with the idea of using the leftover boom parts but opted instead for a curved back made from ply.This was left over from the deck skirt.As can be seen,







the construction is simple-the two halves of the ply were clamped together against a seat back to give it the correct shape.I wondered whether my wife might have a recurrence of PTSD from my last boat building project inside our house but she was fine.Must be the Christmas spirit.We no longer own a sewing machine so my kindly neighbour has agreed to stick up the PVC back for the seat.The idea is to sew sleeves either side and these will slide over the poles.We shall see if this works.If it doesn't we can try something else.The newspaper on the floor was to catch the glue drips

Looking good !!

My engineer mate welded on these bits to the steering head which for want of a better term are flop stops.The question is : does this allow for sufficient turning ability (does the ability to turn need to be tighter than this?)

SJK said..
You can't really see that from a picture, you should try it out. If it isn't too hard for your legs to push the wheel back to the center once you reach one of the sides, then it is fine. If it cost too much force, then you should make the turning ability a bit less. On the other hand, if you can turn easily now, but the turning circle is too wide, you can try to widen the freedom of turning of the wheel a bit.
For what I found out, it is just a bit of trial and error.

And hopefully we all learn from our errors

Just spotted a possible weakness in your ski setup. Not good to have the screw holes from the boot fasteners at that point. In fact probably the worst place possible. May need to have another look at that sometime.

Today I painted the metal bits.I constructed a sort of spray booth using a drop cloth and suspended the smaller bits on strings

My boatbuilder mate pot riveted the aluminium section to the boom part.Since I plan the use a sleeve set up for the PVC seat I drilled out the rivets so I can slide the sleeve over the poles

I had a failure of one of my Ski axles on a mini because the binding screw holes were right where the ski axle met the chassis mount
The worst place to have them
I posted photos on the forum relating to it No problem if the screw holes are kept away from that high stress area
I doubt that filling the holes will help much as the integrity of the ski has been compromised
Might be Ok if you laid some glass cloth and resin as well over that area

I imagine three skis would be very stiff
You might be ok if you turn the bottom ski over so the holes are in compression instead of tension
Skis are readily available at good prices if you hook into a good source I have actually picked up skis that have never been used and
hadn't even had bindings screwed into them so had no holes Skiers must change their skis like their socks
There is a guy near here that has a fence made out of them !

Thanks for the advice chaps.This is the power of a forum.I'm not planning to use the ply as a backrest rather a cross member to provide lateral support,The reason it is curved is so that my back (hopefully) doesn't come into contact with it.The idea is that the PVC provides support.The curved section has given me an idea for another build which is to make lots of them and pot rivet them along the curved sections to make a big banana to sit/lie in.Dreams dreams....