3d printing for tarc - nar.org › wp-content › uploads › 2016 › 07 ›...
TRANSCRIPT
![Page 1: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/1.jpg)
3D Printing for TARC
Doug Cullen NAR 99106
NARCon 2017
https://tinyurl.com/tarc3d
![Page 2: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/2.jpg)
Why 3D Printing?
Create parts that are not available from other sources
Make parts in less t ime than ordering them
Lower cost -especially shipping (if you don’t count the cost of the printer, or your design t ime )
Pride of designing and making your own parts.
![Page 3: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/3.jpg)
From Idea to Parts
Where do ideas come from?
You need a part that’s not available.
You see a similar part .
You have a unique requirement .
https://gsablogs.gsa.gov/gsablog/files/2012/08/idea-1.jpg
![Page 4: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/4.jpg)
Designing Parts
Has someone already designed the same part (or something similar)?
Check out the available repositories of 3D models.
Design your own. Most challenge, most rewarding.
![Page 5: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/5.jpg)
Available 3D designs
These is a good chance that someone has already designed the part you are looking for.
Sources
Thingiverse (many parametric models available)
Grabcad
MyMiniFactory
![Page 6: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/6.jpg)
Design Tools
Free 3D design tools
TinkerCad - part of the Autodesk Family
Autodesk Fusion 360 - free for students
Google Sketchup
Onshape
Open SCAD
![Page 7: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/7.jpg)
Dimensional Data
You will often need to know the dimensions of parts such as body tubes.
Sources of data
Apogee Rockets
Estes
Balsa Machining Service
Ninfinger.org
![Page 8: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/8.jpg)
Printer.
Do you have access to a 3D printer?
Many schools have 3D printers that can be used for school projects.
Get a grant or have a fundraiser to purchase a 3D printer
Find a volunteer to print your designs.
![Page 9: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/9.jpg)
Materials
3D printers can use many different plast ics to print parts.
PLA
ABS
PET (or PETG, Pet +)
Nylon
Polycarbonate
![Page 10: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/10.jpg)
PLA
Easiest plast ic for beginners.
Bio-plast ic, no potent ially hazardous fumes. Prints on an unheated print surface. Files, sands and paints very well. Rarely warps.
It is very rigid and tends to snap when bent . Low impact strength.
Low glass point temperature, not good for parts exposed to
![Page 11: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/11.jpg)
ABS
Most common commercial thermoplast ic.
High impact resistance. Somewhat flexible. Can be smoothed and bonded with acetone. Sands and paints very well.
Better heat resistance than PLA
Needs a heated print bed and/or enclosure
Higher shrinkage can change sizes or cause warping.
Fumes may cause coughing and nausea, needs ventilat ion.
![Page 12: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/12.jpg)
PETG (An improved version of PET)
PETG offers many of the advantages of ABS without the drawbacks.
No noxious fumes and less shrinkage.
Heated bed not required, but is helpful.
May be a bit t rickier to print than PLA.
Excellent bonding and impact resistance.
![Page 13: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/13.jpg)
Nylon (Taulman, Weed Wacker Line)
Nylon can make very strong 3d printed parts.
Litt le or no odor.
All nylon is flexible, although flexibility varies with filament choice. Great abrasion resistance
Needs to be printed at high temperatures, usually requiring an all metal hot end.
Can be challenging to finish and glue.
![Page 14: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/14.jpg)
Polycarbonate
Very strong and impact resistant plast ic.
Require a very high print ing temperatures and advanced techniques to print .
Very high temperature resistance.
Absorbs water, high tendency to warping.
![Page 15: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/15.jpg)
Finishing
3D printed parts can often be used as printed, but often benefit from some post processing to create a smoother surface.
ABS can be vapor smoothed and perhaps strengthen the parts.
![Page 16: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/16.jpg)
Tools
You may want a number of tools to make you print ing faster, easier or just bet ter looking.
You may want:
● Tools for the Printer
● Tools for Print ing
● Tools for finishing
![Page 17: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/17.jpg)
Tools for the printer
Ball End Hex Wrenches - many printers come with some low quality hex keys but a nice set of these are essential Open End and Adjustable
wrenches for changing nozzles
Brass brush, used to clean up the exterior of the nozzle and hot end.
![Page 18: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/18.jpg)
Tools for PrintingPutty Knife, Spatula for removing prints from the print bed
Tape, Hair Spray, Glue Stick, ABS Surry or other products to ensure prints stay fixed to the bed
![Page 19: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/19.jpg)
Tools for PrintingCutters for trimming filament
Tweezers - for collecting loose bits of filament
Digital Calipers for measuring filament and test parts as well as for designing new projects
![Page 20: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/20.jpg)
Tools for FinishingCraft Knife - removing excess material
Deburring tool - removes excess material and smooths corners
Needle or diamond files. Removing excess or smoothing surfaces.
![Page 21: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/21.jpg)
Tools for FinishingSandpaper - Smoothing surfaces, smoothing paint
Primer Filler - helps to remove layer lines and prepares the plast ic for paint .
![Page 22: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/22.jpg)
PrintersHow much do you want to spend?
Prusa i3 designs - Very cost effect ive, available as kits or complete printers. I have a Wanhao Duplicator i3. It is a complete printer with an all metal frame.
There is a strong support community that is actively working to improve this machines. I have been able to print PLA, ABS, PetG and even Nylon
![Page 23: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/23.jpg)
More PrintersMakerbot Replicator and Clones - Makerbot was one of the first commercially produced 3D printers for hobbiest . Today it has been largely eclipsed by clones that deliver bet ter performance at lower cost .
I have a QIDI Tech 1 clone with dual filament capabilities
![Page 24: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/24.jpg)
More printersI recent ly purchased a MonoPrice Select Mini for $165. A small but surprisingly good machine.
We have printed rail guides, t ransit ions, nose cones and even hobby knives on this printer.
Using ABS
![Page 25: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/25.jpg)
The Big Leagues
Machines I wish I could Afford
Some day, Maybe
![Page 26: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/26.jpg)
Commercial Printers
![Page 27: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/27.jpg)
What to print?
Tools -
Fin Guides and alignment Guides.
“Exacto” craft knives
Caps for craft knifes.
![Page 28: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/28.jpg)
What to print?Nose Cones - ABS or PetG
Transit ions ABS or PetG
Alt imeter Mounts. - PLA probably OK
Centering Rings - maybe, PLA is NOT temperature stable
Motor Retainer - needs more test ing - PLA = FAIL
Fins - Heavier and more fragile than balsa / lite ply.
R il G id t d t fl 5 lb 5 5” 48” k t ith I
![Page 29: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/29.jpg)
How to PrintCreat ing Your Design in OnShape
![Page 30: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/30.jpg)
OrTinkercad
Build with 3D primit ives
![Page 31: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/31.jpg)
Convert 3D model to Printer InstructionsThis process is called “Slicing”
Some printers use “G-Code”, a generic language for CNC
![Page 32: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/32.jpg)
Complex ProcessesSome models can present challenge to print ing well. The shoulders of nose cones and transit ions can be problematic
![Page 33: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/33.jpg)
An Example of Complex Operations
BT 80 Elipt ical Nose Cone
Challenges include the step in the diameter at the shoulder and what happens when you try to print horizontal surfaces in space
![Page 34: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/34.jpg)
Onshape Design Process
![Page 35: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/35.jpg)
The Shoulder Problem
Nice looking print that will FAIL.
It will break at the shoulder because the layers don’t stack up
![Page 36: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/36.jpg)
The Simplify 3D Solution
Simply increase the number of perimeters at the shoulder to increase the amount of overlap.
You could make the whole thing at 4 perimeters but it would be 30% heavier
![Page 37: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/37.jpg)
Shoulder Fix
Create a belt of 4 perimeters
![Page 38: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/38.jpg)
Printing the NC Tip
Add Tops and Bottom layers to support the more horizontal layers
Add Infill to reduce bridge and create a bet ter surface. AND
Reduce the Layer Height to create a smoother surface.
![Page 39: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/39.jpg)
Printing Progress
Notice the step for the belt area
![Page 40: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/40.jpg)
3D Printing as a Part of Larger Processes
Consider 3D print ing as a step to creat ing your parts.
Need parts that are stronger or that can be created more quickly?
Use a 3D print as a pat tern for molded parts. Use a silicone molding compound and cast ing resin.
![Page 41: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/41.jpg)
Vacuum Forming Parts
3D Printed bucks can be used to create vacuum formed parts quickly and efficient ly. Vacuum formed parts can be total clear, not possible with 3D print ing today.
![Page 42: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/42.jpg)
Fiberglass and Carbon Fiber
3D printed parts can be used a molds to create parts using Fiberglass, Kevlar or Carbon Fiber fabrics and Resin
![Page 43: 3D Printing for TARC - nar.org › wp-content › uploads › 2016 › 07 › NARCON-2017...Altimeter Mounts. - PLA probably OK . Centering Rings - maybe, PLA is NOT temperature stable](https://reader034.vdocument.in/reader034/viewer/2022042310/5ed77b7e43bb6a56645bfdc2/html5/thumbnails/43.jpg)
t inyurl.com/tarc3d