3D Printing Have CAD Need 3-D Prints

[StanO]

Thanks to NTP2 and his offer to provide a CAD file for my sustainer boat tail, which I now have, I need to get it 3-D printed. Yes, it may melt or who knows, but that's one of the things I want to find out. If it does I may have to have a metal one printed somewhere.

In the meantime I'm asking if there is someone on the Forum who could/would print two copies for me for a reasonable price. Dimensions on the forward end are critical. I can deal with outside surface smoothness. I may be wrong but at one time I understood there was a filament that could withstand temperature up to 700 deg F. I would like to get the highest melting point available and maintain strength if possible. If not available through one of you any suggestions as to where to source appreciated.

StanO

 

[Bravo52]

Thanks to NTP2 and his offer to provide a CAD file for my sustainer boat tail, which I now have, I need to get it 3-D printed. Yes, it may melt or who knows, but that's one of the things I want to find out. If it does I may have to have a metal one printed somewhere.

In the meantime I'm asking if there is someone on the Forum who could/would print two copies for me for a reasonable price. Dimensions on the forward end are critical. I can deal with outside surface smoothness. I may be wrong but at one time I understood there was a filament that could withstand temperature up to 700 deg F. I would like to get the highest melting point available and maintain strength if possible. If not available through one of you any suggestions as to where to source appreciated.

StanO

You're not likely to find a hobby printer that can print filament that will withstand 700 deg F. Most printers operate up to max of about 250C (480F) and possibly up to 280C (535F) on a specialized printer. You'd likely have to find a specialist to print something for a material like polycarbonate which hobby printers don't. I don't even know if Shapeways will print that type of material. The cheapest solution is to try a something like PETG with maybe a paper liner or high temp paint.

 

[cwbullet]

Yup. 700F printers are rare and expensive.

 

[NTP2]

The cheapest solution is to try a something like PETG with maybe a paper liner or high temp paint.

+1

Ps you’re welcome!

PPs what does Ps stand for anyway?

 

[NTP2]

Yup. 700F printers are rare and expensive.

Let me guess, you know a guy

 

[MarsLander]

I'm asking if there is someone on the Forum who could/would print two copies for me for a reasonable price.

Contact Alex at Boyce and see what he says...

https://boyceaerospacehobbies.com/

 

[StanO]

Contact Alex at Boyce and see what he says...

https://boyceaerospacehobbies.com/

All feedback much appreciated!

 

[StanO]

+1

Ps you’re welcome!

PPs what does Ps stand for anyway?

Post Script

 

[NTP2]

Post Script

That was what I figured but you never know it could be like AM and PM.

 

[thzero]

Many hobby grade printers go up to around 300C. However many those high end filaments have specific requirements that are needed beyond just temp.

There are plenty of online services that do 3d print on demand.

 

[cwbullet]

Let me guess, you know a guy

Not at this time.

 

[thzero]

Thanks to NTP2 and his offer to provide a CAD file for my sustainer boat tail, which I now have, I need to get it 3-D printed. Yes, it may melt or who knows, but that's one of the things I want to find out. If it does I may have to have a metal one printed somewhere.

I looked at it... I'm not sure what its for or how it'd be used. No real attachment points, etc. Its also an odd size, at 121mm diameter.

 

[dr wogz]

Find a 'Markforged' printer rep. they can do prints for you, if asked nicely..

 

[StanO]

Contact Alex at Boyce and see what he says...

https://boyceaerospacehobbies.com/

Thanks for the referral. Alex will be making the boat tail for me and gave me some great advice for insulating against high temps.

 

[StanO]

Thought I should do a wrap up of this thread. Had to spend a couple of weeks with family in more sunny climes, then life intervenes but here's the last word. Thanks to NTP2 who created a free CAD file for me and and to MarsLander who referred me to Alex at Boyce, the result was a very nice boat tail for my rocket. The boat tail is an Ogive shape. It is not conventional as it does not have a "shoulder" as one would expect. This rocket is designed to one day be the sustainer of a 2-stage. So the OD of the Boat tail is slightly less than the OD of the air frame and fits inside the booster coupler. See pics. There is a slight discontinuity and I use thin flat head aluminum screws to mount it to the motor mount. I modified Alex's suggestion and used JB Weld to insulate carbon fiber to the inside of the heat exposed portion. I'm curious as to heat effects. Thanks to all for input.