Hey Drew, sound good Wet sanded the fins last night, a little more to go maybe but pretty close now http://drive.google.com/uc?export=view&id=1Yzuhq_NE4nP0BM6IoPh1RZwchlZcWHwZ Contemplating the wet epoxy wipe process rather than too much more sanding into the carbon or painting, will just need ...

Looking great.

Did you use kitchen towel as a breather layer?

Make sure you have a good mask and gloves when sanding the carbon. That stuff is nasty!

Some interesting research on the use of 3d printed ABS cores with carbon fibre laminate:

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6401912/pdf/polymers-10-01262.pdf

I should probably start a new thread to explore this further.

That’s pretty sweet design. Those fins make me want to try building a set of diamond beveled fins using a 3D printed core covered with fibreglass and sending them screaming off on some minimum diameter build... I have started experimenting with 3d printed fin cores for a mid power project. I plan t...

Kryten wrote:Great pics!

Thanks. My camera has been out of action for a while, so it was nice to get some pics again.

I think my reflexes are getting better, because I didn't need to delete too many shots.

That’s pretty sweet design. Those fins make me want to try building a set of diamond beveled fins using a 3D printed core covered with fibreglass and sending them screaming off on some minimum diameter build... Making beveled fins on a 3d printer is a lot easier than making them with sand paper! I ...

Maiden flight today.

It went straight to about 900 feet on an E30-7T.

Today New South Wales Rocketry Association had their first launch in six months. A big thank you to the NSWRA committee who went to great lengths to ensure we could enjoy a Covid-Safe launch. Also well done to the members who were all very sensible and diligently followed all the guidelines. The rai...

Quick update. The end of this build is finally in sight. 2ml centrifuge tubes arrived. Room for more than enough black powder and they fit nicely in the holders that I had already printed. https://i.ibb.co/37PrFVR/IMG-0280.jpg Retaining ring epoxied into the nose cone. Aircraft plywood with 2 layers...

"We can take the wings off for transportation".......and flight it would seem.

fanga wrote:Thats looking amazing Derek. Will it be ready for Mullaley? (if we get to go)

Thanks mate.

I am hoping it will be ready to ground test at Whalan in July or August, and then first flight at Mullaley in Sept (if we get to go)

Just saw this on Facebook and thought of you:

https://www.popsci.com/diy/article/2007-12/star-wars-builders-use-force/?fbclid=IwAR022J9wVNIb_VzX43oFi4Q1YXWGNt4Eqf3HOYK2KIqOoC743t3dSCx1IH4

SpaceManMat wrote:Love the paint scheme

Thanks Mat.

I went through lots of ideas, but the narrow mid section reminded me of a bee or a wasp. So settled for that.

Unfortunately its cold and wet here at the moment, so not great painting weather.

Looking good Derek. What’s your opinion on the best method for carbon fin laminating? Vacuum bagging or stacking and compressing. I’ve got some Estes executioner balsa fins I want to put 1 layer on Sent from my iPhone using Tapatalk Firstly I love balsa fins with a single layer of carbon on each si...

Internal fin fillets done. https://i.ibb.co/6yj1N7G/W7lcf-De-XTeag7-RIJ9-Ffej-A.jpg I mixed the epoxy to the consistency of mayonnaise, so it sagged a little and the fillets joined up in the middle. I decided to get some of the painting done before assembly as it seemed like less hassle for a rocket...