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  1. MadRocketScientist

    CriCri MC-15 in NZ

    Not really any further progress but I have been clocking up the flying hours on the weekends towards getting my microlight license :cool:
  2. MadRocketScientist

    Protective film on aluminum - take it OFF, NOW!

    Try a waterblaster (carefully) to get it off. I keep an eye on any aluminium with the plastic on it and remove it if it shows signs of getting brittle.
  3. MadRocketScientist

    Parts Wanted Cricri canopy, h-tail, fuel tank

    If I can get them to mold well enough I am considering it!
  4. MadRocketScientist

    CriCri MC-15 in NZ

    And lined with felt. I used a reposition-able spray glue for most of the felt but it doesn't really have enough stick and tends to lift. I stuck the edges down with some permanent spray glue once I had the middle stretched out neatly. If I end up gluing it again I will thin down some contact...
  5. MadRocketScientist

    CriCri MC-15 in NZ

    That is also crazy! and Yes I can't wait to see how mine come out.
  6. MadRocketScientist

    CriCri MC-15 in NZ

    WOW that is insane, I guess they are now one off piece and they realyl don't want the hassle of making them. From memory I think the PET costs me around $25 NZD per canopy attempt so they won't cost anywhere near that price.
  7. MadRocketScientist

    CriCri MC-15 in NZ

    I may have a way of getting a canopy or two around the place without too much shipping cost, I will ask around and see what is available.
  8. MadRocketScientist

    CriCri MC-15 in NZ

    After some thought about the thin rubber strip I had ordered on Ebay, I was starting to think it might be affected by heat, then I remembered I had some thin rubber sheet in amongst all my stuff. It has a slight texture so I considered that it may leak air but after testing against some clear...
  9. MadRocketScientist

    CriCri MC-15 in NZ

    Stuck the two form halves together with even more filler. One half had some distortion along the join line so the large sash clamp was used to tweak it into place. I mixed up a slow batch of filler and carefully made sure that the join stayed aligned until the filler set enough that things no...
  10. MadRocketScientist

    Substitute phenolic with delrin?

    Phenolic has much less thermal expansion than plastics, the hole clearance may need to be bigger in Delrin to allow for shrinkage in cold temperatures.
  11. MadRocketScientist

    CriCri MC-15 in NZ

    Old form in the background and the new one in front. The new one still needs to be joined together but I can't quite remember how I went about it originally to keep the join lined up.
  12. MadRocketScientist

    CriCri MC-15 in NZ

    One has had the machining done and the other hasn't, hence the pink... ;)
  13. MadRocketScientist

    CriCri MC-15 in NZ

    Used the CNC to finish cut one of the canopy form halves today. Came out so much better than the previous canopy form that I made. The lead in on the flanges looks really neat too. There were a few cosmetic pinholes and small air bubbles that need filling so I will fix those before sanding out...
  14. MadRocketScientist

    CriCri MC-15 in NZ

    Figuring that the form is going to be heated for molding the canopies I made a temporary oven and heated the halves up to 60°C to stabilize them somewhat before machining. Hopefully it holds its shape later on.
  15. MadRocketScientist

    CriCri MC-15 in NZ

    No problem at all! Good to see you moving along. A few more thousand parts to go and you will have them all made ready to assemble :cool: :p Keep us updated on your progress.
  16. MadRocketScientist

    CriCri MC-15 in NZ

    I finished up skimming the forms with filler a couple of days ago, the photo comes out quite dark since its near the end of the day and it's winter here. I 'could' put more lighting in my workshop but it's easier to just go home when it gets cold and dark. I want to get on with the finish pass...
  17. MadRocketScientist

    CriCri MC-15 in NZ

    Making steady progress on the filler this week. I completed the first half and have started on the second. The tin of filler I had ran out and I purchased another couple of 4 liter tins however the new filler is a lot more runny than the old tin I used up and tends to slump. I decided to add...
  18. MadRocketScientist

    PM Spamming

    That can have its downsides, I have had several legitimate people contact me through PM's about CriCri stuff over the years even though they didn't post much if at all.
  19. MadRocketScientist

    CriCri MC-15 in NZ

    I started on surfacing the form halves with polyester filler today. Firstly I cut some 6mm wide strips from an off cut of 3/16" thick MDF Then I took the worst of the gloss off the epoxy/glass surface with the multitool with a sander blade. Note that I have already surfaced the lower edge of...
  20. MadRocketScientist

    CriCri MC-15 in NZ

    Glassed the foam halves for the canopy form today. The sun was shining and the weather warmed up somewhat and the epoxy had started to set by the time I left to come home. I also uploaded a couple of videos of the CNC cutting the foam.
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