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Charles, Skate board wheels seem to work very well, cheap and easy to obtain with bearings included, you will of course need to cut the groove in but thats easy, you mount the wheel on an 8mm bolt trapped between 2 x 10 franc coins and spin in a drill using a file or knife to cut the groove, I...

If the drum is out of round Paul, I am quite happy to machine it true, will even cover your postage costs regards john

I do like what you have done with the back end of the Python Paul, its making me think why not try the same on a tadpole as long as the width does not exceed the track of the front wheels. When the monowheel broke on my first trip I managed to get it all on the trike, a rethink is called for if...

I have to say Paul I like it very much, is that a pet rock? I have one on the boat for company, great listener and eats nothing John

I think it a wise choice, I dont think I will build another folder despite its attractions, too much hassle

You mention your ball joints ar 1/2" I assume male rod ends, IMHO that is total overkill, 5/16"is plenty strong enough for steering linkages with 1/2" X16g wall. With regard to folding the easiest option to getting a hinge is to buy a used folding bike and cut the hinge off, unless you have...

I was thinking on the uphill sections, weight tranfer of the COG thats all,and of course I dont have experience of pythons other than my Flyke. its true I have another machine to fall back on but one cant turn up running the same old machine year after year LOL John

Its also going the lower the tracktive force on the front wheel isnt it ? I do like how its progressing, far better than mine, at present its a frame and a kit of parts and less time than you to be ready regards John

I have tried masks that meet the criteria under a welding helmet and found them to be hot, sweaty, steaming up glasses and the welding mask,the only thing I found worth the bother was a filtered air fed mask and even that was a pain to use for short run work, and several hundred pounds to boot...

Sir Joey, I think your posts are a great contribution in themselves, this thread I think is becoming very popular due to you starting the question, maybe the next one is what did you name your machine? rgards John

Paul, It might be worth investing in a vernier gauge, your stick of inches wont do it however good your eyesight is. if its any consolation i had the same issue when I made my hubs regards John

In simple terms dim Y must equal dim X within a few microns but I dont think thats the problem, however you can buy shim washers to try it, I still suspect the bearing bores are not concentric orthe bearing seats are not parralel regards john

I recall having hair and brains, where oh where did they go John

I forget exactly the year that I didnt see the light, rather I chose to do something with it, life was not great at that time and I fancied doing the London to Brighton bike ride but at 64 not having riden a bike in many years I did not think me and a saddle would get on very well, so I set...

Am really envious of the space, I wish I had it to play with, but I bet my swimming pool is bigger LOL

Nostalgia isnt what it used to be, remember when you dialled a number and a real voice told you they were connecting you

These so called smart phones are not smart at all, I have 7 of them under the boat at present, not one of them learnt to swim !!!! regards John

oh you cruel man Frank, have eaten the last of the magnum, 8 hours till the stores open

I also use clocks to build wheels,I also have a surface table to lay a rim on to see how true it is to start with.TBH clocks allow you to make it very good but a clothespeg a bit of stiff card and a fag paper do just as well,Am sure Frank can vouch for rizla blue and touch on method LOL

Hi Charles, if your playing with Mr Ackermann, this site is well worth a visit http://www.eland.org.uk/steer_sheets.html lots of different steering methods there. regards John