Hello everyone
It has been 3 years since I started making spare parts for TruCore casing and after spending quite a lot of money I finally got where I wanted with the help from a friend in my rocketry club who is a machinist in his spare time.
The first parts that I got made such as nozzle and forward plugs were machined in China. The anodization on the plug does not last long so I have decided not to do that on the latest casings. Selecting the right graphite with high density as also been a been very challenging. We have also been able to find the correct aluminium tubes so that we do not have to drill them.... This is very expensive when you have to drill them
So my friend has been able to machine 29mm, 38mm and 54 mm casing.
In the last 6 months; we have tested extensively the 38mm from 1 grain to 6 grains and the results are very good. The casing tube is anodized in black or colorless, the plug are not anodized and the nozzle are polished.
We even made 600 meters of casting tubes and liners which should last few years for our own use between us to.
The reason we did it is because we had a shortage of commercial motors in Europe in the last 3 years so we had to come up with solutions to continue launching rockets!!!!
They are slightly different from the original TruCore but still compatible
This is what they look like from 1 to 6 grains
The nozzle. We are also optimizing them for sugar propellant
The plugs. Because we are in Europe and we use metrics you can screw a 6mm screw
And the casting tubes (we have few boxes of those plus some liners)
The retainer for the motor is just an external circlip
This is a picture of one of the flight my friend did with a 54 mm 2 grains sugar/titanium based propellant
Overall it was a very interesting experience for the 2 of us dealing with various suppliers but it is not cheap !!! between the two of us we spent few thousands dollars and ended up buying all the tools to make them!!!!
Now if anybody is interested to byy some custom parts I cannot do them myself but PM me and I give you my friend details and he might be able to do some for you.