Use a brim where necessary. First, print out the tester-tube.stl twice and see how well they screw together – Adjust slice settings as necessary.
Need to change the diameter of the screw? How about using different heat set inserts? The parts are setup with user parameters, so it’s easy to change a value and automatically update the features in CAD. Tolerances use a “gap” to give clearance between mating surfaces – slight adjustments make big differences.
The fusion 360 source file is included and features original sketches and feature timeline along with easily editable user parameters. The parts can further be separated into small pieces for fitting on printers with smaller build volumes. Note: STEP file is included for other 3D surface modeling programs such as Onshape, Solidworks and Rhino.
The blade is comprised of seven parts. The collar joins the tubing to the handle. The pipe extension is printed twice to lengthen the tubing. The key wards slide into the v-slot on the pipe-key.stl part. The pipe-top-cap.stl part is designed to snap fit and locks on top.
The handle is comprised of six individual pieces. The cross guard requires M3 screws and heat set inserts. The end cap and connector parts are keyed and snap fit into registrations in the cross guard.
Layer by Layer CAD Tutorials
The grip in the handle features knurling texture that wraps around the cylinder. This design technique is achieved using the coil and circular pattern features in Fusion 360. Watch my Layer by Layer tutorial below for a deep dive on how to apply knurling to your parts.
Screw Threaded Parts
Most of the tubing pieces feature screw-threaded ends allowing the parts to simply screw together. This uses the coil feature from Fusion 360 to create threads with custom size, pitch and height. Watch my Layer by Layer tutorial below for a deep dive on how to design parts with these features.
Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!
Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!
We are angry, frustrated, and in pain because of the violence and murder of Black people by the police because of racism. We are in the fight AGAINST RACISM. George Floyd was murdered, his life stolen. The Adafruit teams have specific actions we’ve done, are doing, and will do together as a company and culture. We are asking the Adafruit community to get involved and share what you are doing. The Adafruit teams will not settle for a hash tag, a Tweet, or an icon change. We will work on real change, and that requires real action and real work together. That is what we will do each day, each month, each year – we will hold ourselves accountable and publish our collective efforts, partnerships, activism, donations, openly and publicly. Our blog and social media platforms will be utilized in actionable ways. Join us and the anti-racist efforts working to end police brutality, reform the criminal justice system, and dismantle the many other forms of systemic racism at work in this country, read more @ adafruit.com/blacklivesmatter
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.