Jump to content
APC Forum

Recommended Posts

Posted
Hey everyone im back and recentlty got a 3d printer does anyone know of any usefull tools or powder scoops that i could i print
Posted

I have a 3d printer too and just successfully printed my own hemisphere molds- 1.75", 2.5" and 3". No more buying hemis for me! I used abs plastic and it worked great for holding up to the stress. I also made a 6-pin mini star plate, but have yet to try it out. If you are interested in any of these things I would be happy to send you the models I created.

 

Here's my hemi molds. I acetone treated them so they would be smooth and release better.

 

IMG 2535

  • Like 3
Posted

Very nice guys i made some simple powder scoops so far id love to share .sti let me know if your intrested in them.

Posted

I'm late in this. However, it seems the "tools you should make" are "the tools you need". Go from there!

 

Lloyd

Posted

agreed

Posted

I have a 3d printer too and just successfully printed my own hemisphere molds- 1.75", 2.5" and 3". No more buying hemis for me! I used abs plastic and it worked great for holding up to the stress. I also made a 6-pin mini star plate, but have yet to try it out. If you are interested in any of these things I would be happy to send you the models I created.

 

Here's my hemi molds. I acetone treated them so they would be smooth and release better.

 

 

Those are good looking molds. I just had a quick question about how how they work. Are they the type where some number of layers of patterned pieces paper/chipboard/strawboard are sandwiched together between the female and male parts of the former? I normally see pieces shaped somewhat like snow flakes or an asterisk used.

Posted (edited)

Mumb, those 'snowflake patterns' are called "gore patterns". They're similar to the designs necessary to make hot air balloons.

 

I recently made one for a client from PVC sheet as a pattern for manually cutting gore sheets for testing various papers for making shells.

 

It's a chore, cutting enough paper by hand for making a shell, but a valuable capability if you wish to evaluate many different papers.

 

Lloyd

Edited by lloyd
Posted

what i would love is a tube roller made from a 3d printer i would pay for the .sti file. I still find rolling good rocket tubes quite a challenge

Posted

 

Those are good looking molds. I just had a quick question about how how they work. Are they the type where some number of layers of patterned pieces paper/chipboard/strawboard are sandwiched together between the female and male parts of the former? I normally see pieces shaped somewhat like snow flakes or an asterisk used.

Yes, exactly. I sized and printed a snowflake pattern to cut the layers as you described. I use 2 layers of corrugated cardboard and 2 layers of kraft as laminates on the outside and inside of the hemi. Not the fastest process, but I can make one in 15 minutes including cutting time, and I am very satisfied with the quality.

 

IMG 2578

 

what i would love is a tube roller made from a 3d printer i would pay for the .sti file. I still find rolling good rocket tubes quite a challenge

I could probably help you out with that, I've become pretty proficient in solidworks. Is it just a rod with a slit along the side of it? If you needed something more specific you could make a rough sketch and some dimensions.

Posted

im not exactly sure to be honest i have seen a few in action on youtube however they all seem to be 3 metal rollers and 2 sides with some groves for the rollers and a slot to move the top roller down or up.

Posted
I've got a motorized tube roller, and except for a few parts, the whole assembly would be easier, stronger, and cheaper, using traditional machining methods. Mines mostly aluminum, little bit of steel, couple plastic gears, and a motor
Posted
Where did you buy it from ?
Posted

This sort of circle cutter works pretty well for cutting cardboard and paper disks: https://www.thingiverse.com/thing:189956

Also a hand drill is nice for having more control while carefully/slowly drilling out passfires (seriously, go slowly!) or drilling though tubes and nozzles with no live comp around without having to use an electric drill.

https://www.thingiverse.com/thing:792988

Posted

Where did you buy it from ?

I bought it from a friend, who built it for himself. He no longer is actively doing pyrotechnics (he keeps busy with oil painting and hobby machining).

 

I bought it for three reasons, one because I was already getting some stuff from him (the lathe he built it with), two to learn how to build a better version, and three to roll tubes!!

 

When I get through my list of projects, I will take it apart, measure everything, and release plans to build your own

  • Like 1
Posted
Thanks what size tubes does it roll?
  • 2 years later...
Posted

Solid, thanks for sharing http://www.freeimagehost.info/i/RTnvmWVRqy.png http://freeimagehost.info/i/RTnvmWVRqy.png

Posted

While it's a chore to cut hemi blanks manually hemi factories will use huge power tools cutting several sheets at a time punching with a sharp tool to get hundreds of leaves per minute.

  • 2 weeks later...
Posted
What would you guys say is the easiest to use printer for sarting out. Out of the box and ready to run.
Posted
Hands down the Ender 3 from Creailty. It’s cheap compared to others and preforms really well out of the box. Some tinkering can be expected to achieve optimum performance, but it will produce great prints regardless. There is a slight learning curve when leaning 3D printing though, however there are lots of great forums online to help. You do have to assemble it once ordered but that isn’t really complicated and there is a great deal of YouTube videos about it.
  • 3 months later...
  • 3 years later...
Posted
On 6/25/2017 at 8:20 PM, Maserface said:

I've 3D printed lots of pyro tools:

 

Spiking templates

Nosecone moulds

Spollette drilling tools

Funnels

 

Pics: https://drive.google.com/open?id=0B_nZUzPzTycmLThpbnBmelNQVk0

Hey may i get access to this? im curious what you have there and would love to utilize some of it with my 3d printer!

  • 7 months later...
Posted

I made myself tube supports for a few different size tubes, I only have a 1 ton arbor press though so not sure how they would hold up to higher pressures, I imagine I can just make them thicker if I ever have issues.  Also only 1lb I have made have been gerbs, but up to half inch I have pressed rockets even some with a little whistle.  I have made bases and rammers with holes, and for spindles I have used some metal tent stakes I had laying around.  Not the prettiest because they are just for me, but the rockets look and work just fine.  I'll get some pics in just a bit.  This forum should have a section just for posting STL files

Posted (edited)

half inch ID, 5 inch long tube support v1.stl

Very basic and I just use screws to hold it together and cut off to length on the back side.  I print it on its back, and print two halves.  Max out my 1 ton press with no issues so far.

This one is for a thinner walled spiral tube

Edited by Powertech
Posted

Here are some of the things I have printed.  I found with my cheap Anycubic plus that with the smaller rams, I needed to print them on their sides using support instead of upright.  I included on the right side of the picture a ram printed upright, looks horrible.  The 1lb and 3lb gerb stuff I printed upright just fine. I also had printed my press base, but I barely had any filament left so it is all patched together.  I plan on printing a nicer one soon, but what I am using works for now.  I am also about to clean things. image.thumb.jpeg.00f8c37f3926bdc9b51737e3319df388.jpeg

  • Confused 1
×
×
  • Create New...