hi guys ,
thanks again for the info.
both of you are wright adout the skills and equipment. as you stated it is simpliest to buy some robarts at the end.as i had no idea of what i need and how dificult it is, i thought that i might be able to construct these parts.at first glance it seems it is easy but NOT if you exanine futher.i totaly abandon this idea of landing gears.
in my research and our discusion i found and learned very interesting thinks.i am thinking only of purchasing a silver soldering equipment as i can use it in many parts, for example for solderind wires ,pushrods,rods...
am i whong again?
i solder these parts with lead and i think i could it better with a silver soldering.but it is necesary to use oxy? propane is not enouth?

also what is the diference in tig and mig? i see that there are machines both types on ebay about 300-500$. do you think it is worth it? as i said i totaly abandom the idea of the small parts. i already have a simple welding machine .the simple one with only electrodes with no gas(i dont know exactly how to name it) and i always wanted to upgrade to a beter one.
but i am confused again with tig and mig. i used this machine for making the tables and selfs in my workshop.os soldering fenses. what do you think i might need for these kind of jobs?the gas is the same on mig and tig?both mig and tig can weld alouminium and steel?
is it worth it the machines of 30-500$ on ebay ??

many thanks
achilles