Nice I love rockets, I've never made my own motors but it doesn't look super hard. These days getting the Chemicals in the western world has become the issue
Probably it really doesn't look that hard, but it's not that simple to make a good rocket motor - it has to be very stiff, the nozzle must be the right size (if it's too small it will explode, if it's to big it won't fly etc.,..). Yes, it's true about the chemicals, I also had some problems because I owned a lot of "exotic" chemicals, and that was one more reason why I rather stop with that..
Anyway, back to the frame: I just laminated the bottom bracket tube and the downtube. Hope that everything will be ok!
The BB tube is just a tube with 46mm id., for the press-fit bearing.
For the downtube I had some more work. First I had to prepare all the material, and it took me already quite a lot of time,..
...then I had to prepare the epoxy...
..and laminate the tube. It took me almost 4h only for the downtube
but the progress is anyway quite fast!
As I mentioned I already made the seattube and toptube. For the seattube the most difficult part was to make the internal diameter exactly 31.6mm. I made it with some special inserts. It's a 34.9mm tube with 31.6mm internal diameter:
Of course the tubes are still completely rough. Here a photo from the toptube, where you can see that the "cable stops" are already laminated:
Next step is to make the chainstays and seatstays. Hope that I'll manage to make them in the next few days! And I still have to make the mould for the headtube and dropouts, but first I have to make all the tubes,... Will keep you updated!
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