Offering up a Scratch Design

I have had this file on my computer for years. It is a SolidWorks part I found on 3D Content Central. I would like to see if someone could take and build it from scratch based on the pdf. You would need to scale it to your own needs, as the origin file is only 1.112" in dia.

The rocket is a nice design, and I would like to see if one of you fine modelers would take on the project (?)

The rocket has eight fins (4-canards), and is a short boattail design much like the V2. The cone is made to look ducted... anyone?

If you have the original solidworks file, I could 3d print it quite easily.... could make it up to 11.5" in diameter, and no limit in height.

Geeze ,if my plate was not so full, I`d love to make that !


......who knows ?


Paul T

alexzogh said:

If you have the original solidworks file, I could 3d print it quite easily.... could make it up to 11.5" in diameter, and no limit in height.

Click to expand...

You can download the file from here in any SolidWorks format:

https://www.3dcontentcentral.com/download-model.aspx?catalogid=171&id=121052

Would love to see a print of this model...

Just wanted to say thanks for posting this.

I've been diligently reworking the rocket for 3d printing.

Right now it's currently configured for a 75mm motor, and will be about 8" in diameter and about 12 feet high. Hopefully the thanksgiving "downtime" will let me finish the cad, and I can start printing it next week.

Alex

That is going to be awesome! I can't wait to see the raw parts...

alexzogh said:

Just wanted to say thanks for posting this. I've been diligently reworking the rocket for 3d printing. Right now it's currently configured for a 75mm motor, and will be about 8" in diameter and about 12 feet high. Hopefully the thanksgiving "downtime" will let me finish the cad, and I can start printing it next week. Alex

Click to expand...

How are you printing this?

Is it ducted from nose to tail? It's a pretty interesting design.

Getting closer...

I've attached few more photo's.




For those inquiring, this will be printed using a custom engineered delta printer (Rostock was the original design before modified) with an all metal hotend to use advanced filaments. In general, you don't want to print any structural parts in ABS or PLA as they delaminate very, very easily - even after an acetone vapor bath. I'll be printing this either in carbon fiber infused PET, or nylon. I can print three feet high by a 12 inch diameter

That sounds like one cool toy! I'm just a little jealous. Can't wait to see how this turns out!

Here is a few things I came up with done from estes parts. One Bt-60 parabolic nose cone. This is in the first picture. The second picture is with a BT-55 conical nose also. The nose cone for the spike I used a 18mm cone. I think on the boat tail I could use the nose cone from the vagabond kit. With a 24mm mount it would be 4.5" long.


With some body putty you would never know it was two nose cones.

Finished the cad drawings. I made two different boosters, one for 38mm and one for 54mm. I'll also make a few different sustainers to hold gopro cameras. I'll scale it down and print a 18mm version overnight in ABS to see how it comes out.

Estesbasher said:

Here is a few things I came up with done from estes parts. One Bt-60 parabolic nose cone. This is in the first picture. The second picture is with a BT-55 conical nose also. The nose cone for the spike I used a 18mm cone. I think on the boat tail I could use the nose cone from the vagabond kit. With a 24mm mount it would be 4.5" long.


With some body putty you would never know it was two nose cones.

Click to expand...

alexzogh said:

Finished the cad drawings. I made two different boosters, one for 38mm and one for 54mm. I'll also make a few different sustainers to hold gopro cameras. I'll scale it down and print a 18mm version overnight in ABS to see how it comes out.

View attachment 156087

View attachment 156088

Click to expand...

Nice work guys, the parts and models are looking sweet! Esest parts thru 54mm... Loving it! Thanks for bringing this little design to life.

alexzogh said:

carbon fiber infused PET

Click to expand...

wait WHAT

How does that work? Does the filament stay fluid long enough after being laid down to let the CF reorient itself and become closer to isotropic? Does it remelt the place where it landed?

Makes me wonder if you could use a smallish (1-5 watt?) CO2 laser to heat the substrate immediately before laying down new material on top...

Well,


Here is a photo of the first version rolling off the small printer






I need to do a little more work before I print it full scale.

Here is a link to some specifications of carbon-fiber / PLA filament: https://www.proto-pasta.com/datasheets/Carbon-Fiber-PLA.pdf

I don't use PLA, but PET as the base instead because PLA is WAY too brittle for rocketry... At least my landings

I first shred the PET, then grind it down before adding the CF. I can only make it in 3mm filament, and have to use a .5mm nozzle or the CF gets stuck in my extruder's hot end. I'd love to try Kevlar pulp, but can't find a good source for it in volume.

I don't have the equipment to test the properties, but I can stand on a 54mm tube.

Alex that is so (KOOL) I've been watching how you've been using that printer. Looks like you've been having a fun time with it. Now I hope this is not too personal, but how much does something like that cost? I can't believe the things you can do with it. I bet your imagination is going nuts right about now.

They cost over 1000 dollars. But the material to 3d print it is around 10 dollars. So. They aren't a toy

I just looked it up. I was thinking they would cost more than that. Looks to me Alex has something better than these.
https://store.makerbot.com/special-offers?gclid=COq5yZ6szrsCFatxQgodamkAPQ
What types of materials can you use to do this? Can you print a Titanium Fin can For Mannyskid. Then he could see if he can shred it on one of them O-motors.:wink:

My larger printer is based upon this one: https://seemecnc.com/collections/3d-printers/products/rostock-max-complete-kit

The entire design is open source. I made mine significantly larger with a different hot end to use more materials.