Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5325611.

Here's a simple dinner set and print-in-place forming tool to shape flat 3cm disks into 3D shapes. Drop the unformed plates into hot water then quickly and carefully place them into the forming tool and close it.

https://youtu.be/uXkZVvtczlo

Mini dinner set with plate forming tool.

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5326557.

3D printed shovel for kids, use at the beach, sandpit or for gardening. You'll need a bit of 2020 aluminium extrusion for the shaft and 4x M4 nuts and machine head bolts.

Kid's Shovel

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5276596.

STEMFIE motor enclosure for N20 geared motors and banana terminals. Check the dimensions of the banana terminal diagram included. STLs are sized for 24mm long motor with 8mm long shaft.

If you want to customise for different sized terminals or motor lengths download the .scad file and you'll need to download [Stemfie_OpenSCAD](https://github.com/Cantareus/Stemfie_OpenSCAD) to your OpenSCAD library directory.

Connecting tabs inspired by https://www.thingiverse.com/thing:2064269

STEMFIE N20 Motor Enclosure

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5283012.

This is a replacement for those common yellow gearbox motors to make it fit into the [STEMFIE construction set](https://stemfie.org).

If you want to customise for different sized terminals download the .scad file and you'll need to download [Stemfie_OpenSCAD](https://github.com/Cantareus/Stemfie_OpenSCAD) to your OpenSCAD library directory.

Connecting tabs inspired by https://www.thingiverse.com/thing:2064269

This only works for the single sided shaft outputs, the double sided output has a different internal layout.

STEMFIE Yellow Gearbox Enclosure - Single sided

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5271079.

These maths, phonics or anything to want them to be twisters are highly customisable. Choose which letters or numbers you want from OpenSCAD generate the STL files and print them. Three sides and up is supported though you'll need to play around with the height parameter to make sure there's enough space in the center for the locking tabs.

Use dual extrusion to print in two colours or print the rings, paint then sand the paint off the outer surface to create more contrast.

https://youtu.be/PFvm5V36KTg

Customizable Phonics and Math Twisters

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5256581.

This is a fun little project to assemble.

You'll need six 2mm diameter 14mm long metal rods for the joints.

All parts are built using my STEMFIE OpenScad library: [Stemfie_OpenSCAD](https://github.com/Cantareus/Stemfie_OpenSCAD)

If you want to download the original STEMFIE parts you can get them from [stemfie.org](stemfie.org)

You'll need:
4 x Brace STR STD ERR BU15x01x00.25 - SPN-BRC-0014
8 x Shoulder Screw RHD RH BU01.25 - SPN-SSC-0045
8 x Spacer FRE BU00.50x01.00 - SPN-SPR-0051
8 x Washer FXD BU1x0.25 - SPN-WSR-0001
8 x Nut RH BU01.00x00.25 - SPN-NUT-0002

https://youtu.be/Akd86H2Ac5M

STEMFIE Roberval Balance Scales

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5240771.

Use this model as a fun project for kids or as part of a STEM activity. Have students design their own sails and try different mast positions to experiment with performance and stability.

Check the second photo for parts. Axles are 2mm metal rods, 50mm long for rear axle and 14mm long for front axle. There's a jig for pressing the wheels onto the axles, it works but it's not great. Try if you want to otherwise you can also use a vice, g-clamp or hammer.

This is my first time using [Stemfie](https://stemfie.org). A free 3D-printable construction set by Paulo Kiefe. The blue parts from the second photo show the standard Stemfie parts, they're included in the build plate STL. Check stemfie.org, you may want to substitute parts or print additional parts to make a different built.
12BU threaded beam
6BU threaded beam
0.25BU screw x 4
1BU screw x 4
0.5BU nut x 3

https://www.youtube.com/watch?v=4irC_Ipcg_Q


Stemfie Sailcar

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5204042.

Customizable spinning arrow with space for magnets. Spins pretty smoothly, great for playing educational games with your kids. I've used them in my kindergarten class and they're a hit with kids! Use a roll of 25mm stickers to decorate.

https://www.youtube.com/watch?v=3Y3p-fjEyJg

Spinner

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5225377.

Vortex cannon that shoots rings of air. Customize in OpenSCAD to experiment with different sized openings. Includes baffles to prevent children from using them to shoot hard object with them. Use an 18" balloon to fit the STL file we've included.

https://youtu.be/eBv4vu6Jiq0

Customizable Vortex Cannon

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5234620.

Phonics Slider for helping young kids practice reading words phonetically. Use them with your own kids or, if you're a teacher, they are fast enough to print that you can print enough for your whole class.

There's examples provided for CVC, 'r' and 'l' blends, VC, magic 'e', 'r' controlled vowels and silent 'a'. You can edit the PPT to create your own or print the blank template page and write on it with a marker.

After you've inserted the sliders into the frame staple the ends to stop them from coming out. Laminating them first will also make them last longer.

PPT Template: https://www.dropbox.com/s/y91gitnjhn1b6di/Phonics%20Slider.pptx?dl=0
PDF Template : https://www.dropbox.com/s/bhw5710r0xqzhsz/Phonics%20Slider.pdf?dl=0

https://www.youtube.com/watch?v=7YwQn6Nxea0

Phonics Sliders

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5207787.

This is a very simple tube to create a water tornado. There are no threads so you'll need to use hot glue or epoxy to connect the bottles together. Here are two options: print big enough to glue the caps into the connector or glue the bottles directly to the connector.

Experiment with different sized nozzle diameters, small diameters are more difficult to get the vortex but take longer to drain.

Strongly recommend using the Customizer in OpenSCAD, the stl is for a random Chinese water bottle and not the same dimensions as a standard soda bottle.

https://youtu.be/VxJbpAx9xjI

Tornado Vortex Tube (Customizable)

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5225257.

Very simple holder to hold small cards upright. Can use in games or target practice. Download and customize in OpenSCAD. STL file included fits cards less than 60mm and 0.3mm thick.

Card Stand

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