Diameter of rocket governed by safely housing width of new phone.
Nothing fancy, but should perform well.
What is interesting about this rocket is that I printed most of the rocket with the exception of the fins and motor mount.
Some of the parts are thick for structure strength, but have an internal rectilinear fill pattern with mostly empty space in between.
Polycarbonate + Carbon Fiber is used for motor enclosure & nose. For plastic, it is very strong and has a fairly high glass transition temperature of 143°C. To print well with this material, you must have a print enclosure around or over 90°C.
For the rest of the printed parts, it is a combination of ABS and ABS / CF.
The motor mount tube is standard loc cardboard and is sleeved directly into the printed part.
Electronics bay is be nice and tight, housing everything including my custom deployment system, phone, raven, batteries, and GoTenna transmitter.
What is interesting about this rocket is that I am hoping to print majority using Polycarbonate / CF. For plastic, it is very strong and has a fairly high glass transition temperature of 143°C. To print well with this material, you must have a print enclosure around or over 90°C.
Design pending until I finish print tests and filament material is back in stock.
I've never printed fins, I have always made them from pressed glass layups. My self built fiberglass/kevlar/carbon fiber fins are insanely strong.
The fins will be a first for me with printed PC/CF fins, as such, the rocket will have to go through the paces and prove itself.
While I see quite a few opportunities for PC/CF, it is not strong enough for the fins I need. At least I dialed in the settings for printing with PC/CF further. It's printing nicely.
Comments
Good to see something great going on here.
frewi80 on 2023-09-25 19:52:05Z wrote:
Nothing fancy, but should perform well.
What is interesting about this rocket is that I am hoping to print majority using Polycarbonate / CF. For plastic, it is very strong and has a fairly high glass transition temperature of 143°C. To print well with this material, you must have a print enclosure around or over 90°C.
Design pending until I finish print tests and filament material is back in stock.
Flying on a 54 mm 6 XL ???
frewi80 on 2023-09-30 16:58:27Z wrote:
I've never printed fins, I have always made them from pressed glass layups. My self built fiberglass/kevlar/carbon fiber fins are insanely strong.
The fins will be a first for me with printed PC/CF fins, as such, the rocket will have to go through the paces and prove itself.
While I see quite a few opportunities for PC/CF, it is not strong enough for the fins I need. At least I dialed in the settings for printing with PC/CF further. It's printing nicely.
Disappointing. Moving on.
Fins will be carbon fiber.