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  1. Q

    water jet cutting

    Yes I will certainly polish the edges. I have a leather and scotch brite buffing wheel , followed by a quick check under a magnifying glass , I think that should do the trick. thanks
  2. Q

    water jet cutting

    Good Day everyone , Are there any issues having parts in aluminium cut with a waterjet . The reason I ask was that I was told that the water jet may ingrain some garnett in the edge and that could be the start of a stress crack . Any thoughts.
  3. Q

    bending a wing spar

    Your'e right it is extrusion. I just had a quick glance and thought how am I going to bend that. thanks
  4. Q

    bending a wing spar

    I am building a 750 cruzer. The main wing spar is too long for my press brake and I would like some input as I would like to stagger bend it(the spar) . By this I mean bend say 15 degrees ,then move the piece up and bend the remainder , increase the bend angle and repeat the process till the...
  5. Q

    practice pieces in 1010 and bonding

    sorry typo I meant 6061-t6, There is a local importer so 6061-t6 it is then.
  6. Q

    practice pieces in 1010 and bonding

    How well does 2024-t3 form, say for a wing spar. Zenith states in one document that 2024 is a substitute for 6063-t6 ,but in another say it is not recommended for forming.
  7. Q

    practice pieces in 1010 and bonding

    Thanks for the input, So the glue is a no-no, But I will practice the forming. I got a good (g)estimate from an online quote from a shipping company so this looks the way forward ( if the costs for shipping are to be believed). There is some 2024 available locally , but certainly no 6061-t6...
  8. Q

    practice pieces in 1010 and bonding

    Good day all, I am starting to build a cruzer and as I have a good sheet metal shop including come cnc stuff I would like some input as to if it is a good idea to trial make the pieces out of 1010, form them and remake the piece in 6061-t6. The two main reasons for this is a 1010 is available...
  9. Q

    More Thoughts on PSRUs

    Good Day all Hope this is in the right place and not to much of a hi-jack . Attached (hopefully) is a thesis/report of an automotive conversion documented with it's PSRU. I found it on the net once , but have never been able to re-find it.
  10. Q

    tolerance on formed parts

    Thanks . Lot's of reading there
  11. Q

    tolerance on formed parts

    Thanks DC, You are correct about the bend radius .it is on the plans but the hole diameter is not.(not that I can see) Any way you have given me a starting point. Thanks
  12. Q

    tolerance on formed parts

    Good Day all. Can anyone throw some light on the size tolerance say of a formed rib. My rib formers (for a 750 cruzer) have been cut on a water-jet cutter. I drew the template , but it is drawn by a series of co-ordinates and you have to connect the dots. This I did by joining them with a...
  13. Q

    6061-t6 vs 6082 ?

    Thank you for the replies and link as well as the welcome. I will check the temper in the morning, But perhaps I should check with the plans supplier first as well as the local regulations. I believe our local CAA is getting quite sticky . Thanks again
  14. Q

    6061-t6 vs 6082 ?

    Good Day all Is it possible to substitute 6082 instead of 6061 t6. Not sure of the temper of the 6082 ,will find out. The reason is 6082 is locally available,otherwise it is an import. thanks
  15. Q

    CH 750 Cruzer plans for sale

    Do you still have the plans. I can send funds via western union, paypal etc. thanks
  16. Q

    CNC Machine - for home-building aircraft

    Just completed my 600* 900 router. Going to use it to cut aliminium ribs,etc for a zenith 750 cruiser. There is a great website in the UK with loads of designs for machines . Not sure if I can post a link though.
  17. Q

    Thanks ross charles

    Thanks ross charles
  18. Q

    Good day Ross I am looking to do my own conversion on the honda l15a. I will be using your...

    Good day Ross I am looking to do my own conversion on the honda l15a. I will be using your ecu(aircraft), but I want to turbocharge just to obtain full power to about 8000 feet. I live at about 4300 feet and we see temperatures of 35 centigrade. In your opinion would should I change the pistons...
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