Black Ram Hand

Project homepage: https://www.instructables.com/id/Black-Ram-Hand-MVII-BIG-Robot/

Please do not hurt other living things with your 3D prints...

DIY Lost PLA Aluminium Casting of CNC Replacement Parts by Tailortech

Tailortech released a great step-by-step video on how he designed, 3D printed molds and metal casted the replacment parts for his CNC. You can learn a lot of you want to do something simillar with lost PLA casting / investment casting.

First video in three part series:




Project Instructables page:

https://www.instructables.com/id/3D-Printed-Lost-PLA-Investment-Casting-Aluminium/

DIY 3D Printable Axial Flux Stepper Motor

Proto G Engineering designed a partially 3D printable axial flux stepper motor.




Instructables page with detailed guides:

https://www.instructables.com/id/3D-Printed-Stepper-Motor-V11/

Replace broken optical drive with RasPi on 3D printable tray

Ollie242 replaced an broken old ThinkPad optical drive with 3D printable tray holding a RasPi. It connectes to the notebook with internal wiring.

Detailed build guide: https://www.instructables.com/id/Re-purpose-Optical-Drive-With-RPi/

Simple DIY 3D Printable Bluetooth Speaker

Here is a simple and easy 3d printable battery-powered Bluetooth speaker you can make with even basic electronics skills. It was developed and published by Hardiq Verma.






Detailed construction guide and all the files can be found at:

http://www.instructables.com/id/Awesome-3D-Printed-Bluetooth-Speaker/

DIY 3D Printable Kinetic Charger Power Bank

Here is a very useful project you can make on your 3d printer with some electronic components. It's a fully functional induction powered charger with battery power bank. It charges the battery when you move it.
All structural components are 3d printed and you will need some magnets, copper coils, battery and an electronic controller.


Main components:

1. The Inductor consists of a 9-magnetic Halbach array and three coils.
2. PCB contains an inductor 200mA step-up-converter, a battery charger, and a battery step-up converter 5V 2A output.
3. The lithium-polymer battery with 2800 mAh capacity.
4. The case consists 4 parts and is made with 3D printer.

The designer, TanyaAkinora from Ukraine named it "Elveet".


Video presentation:




Instructables page with the construction guide and all the files:

http://www.instructables.com/id/Elveet-Kinetic-Charger-Poverbank/

Thingiverse page:

https://www.thingiverse.com/thing:2460823


Charge schematics:

DIY 3D Printable Hot Glue Pen

TanyaAkinora developed a fully functional DIY hot glue pen that is powered by a simple electric motor.





Detailed construction guide and all the files:

http://www.instructables.com/id/GlueDart-Glue-Pen-With-Electric-Motor-Extruder/

3D Printable Mortise and Tenon Jig for your Dremel

If you need a cheap DIY jig for mortise and tenon making for your woodworking projects here is a simple 3d printable version that uses a Dremel tool for cutting out the wood.
It was developed by Crafted3D since he needed a cheaper alternative for a 1000USD standard router.

There are a few non-printable parts like a metal clamp, but this is a great low-cost shop tool. You could also design different templates for the shape of your tenon/mortise parts.


Instructables page with all the files:

http://www.instructables.com/id/Flex-Shaft-Mortise-and-Tenon-Jig/

Big Benchy RC Boat

You like making the 3DBenchy? Now you will like it even more with this project! Kim developed a larger version that can float and has an RC control for a small electric motor. It is 3d printed from several modules and held together with ABS-juice which also makes it watertight.


Video with build log and RC Benchy in action:




Here is the full construction guide:

http://www.instructables.com/id/RC-Boat-3DBenchy/

Thingiverse page:

https://www.thingiverse.com/thing:2388765

New DIY CO2 Laser Cutter Project

Here is a new DIY CO2 laser cutter project from Instructables. It was developed by Michiel Deschout and uses relatively available materials and parts like 3030 aluminum T-slot profiles, Arduino and some 3d printed parts. The total cost was some 1900 Euro.

The presented setup uses 40W laser, but the power could probably be increased.

Very detailed step-by-step build guide with all the files can be found at:

https://www.instructables.com/id/Make-Your-Own-High-Quality-CO2-Lasercutter-With-To/



Here is the back side with 3d printed holders for the CO2 laser tube:

Aluminum Profiles DIY 3D Printer by Thomas Workshop

I always like to see new 3D printer designs and builds by different people. Recently I found this larger volume (40cm3) machine by "Thomas Workshop" on Instructables. It is fully made from common aluminum profiles and Thomas did put some effort to document and present his work process.
Test prints look good and the frame seems sturdy.

Here is the final video from three part series showing electronics and printing:




Here is the detailed step-by-step build guide with videos, documentation, and picture construction log:

https://www.instructables.com/id/3D-Printer-Working-Area-40x40x40cm/

3D Printable DIY Rotary Tool aka. Dremel Clone

Makernaut developed and published this great 3d printable rotary tool or Dremel. It looks easy to make even with entry level electronics skills and has three 3d printed enclosure parts.

It is powered by 12V DC motor (listed as 6000 rpm, RS-550S motor, diameter~37mm), it has PWM DC motor controller (3A) and mini chuck / collet set for 3.17mm shaft to hold the tool bits.


Here is the build guide video with a short demonstration:




Full Instructables with STLs and parts list can be found at:

https://www.instructables.com/id/3d-Printed-DIY-Dremel-style-Rotary-Tool/

You can also go and see Makernaut's youtube channel:

https://www.youtube.com/channel/UCAFh1MH4rPop-ca2jyPhcpQ

3D Printed DIY 1/16 Ratio Gearbox for DC Motors

Tomi Malkki made a 1/16 ratio 3d printed gearbox that he uses to modify torque and RPM of salvaged DC motors.

Project description with gearbox specs:

This gearbox has the ratio of 1/16. With this 12v motor it can lift around 3,5kg (straight from the shaft.) 2 washers should place between each gear (see details in video). It reduces heat between plastic parts when 2 washers are rubbing each other. Adding lots of bearing grease between everything is essential. Depending on your printer tolerances you might need drill out some holes bigger. Motor mount should be standard size.

Gears:

• layer 0.2
• infill 25%
• perimeters 3
• bottom layer 2, top 3

Covers:

• Layer 0.3
• infill 20%
• perimeters 2
• bottom layer 2, top 3

Here is the assembly video:



He also cleaned all the surfaces with oil and dirt cleaner, then added a layer of primer, 2 layers of surface paint and 2 layers of clear lacquer, he is using acrylic spray paints.

This is a very useful DIY project that can power many small projects like RC vehicles or robots.

All the files and instructions can be found at:

http://www.instructables.com/id/3d-Printed-Gearbox-for-Small-Dc-Motors/

Thingiverse page:

http://www.thingiverse.com/thing:2227131

Add DIY electric power on your longboard with 3D printing

Yow Hwui Low used 3d printing to add DIY electric motor drive to his longboard. He documented and published the entire process.

Longboard specs:

• This board can reach speeds of up to 42 km/h and has a range of over 16 km. The average pace of daily rides is around 15 - 20 km/h. It weighs around 8 kgs.
• Fully 3D-printed drivetrain with built-in idler system in ABS. Tested over 150 km as of March 2017.
• Max. Speed: 42 km/h
• Range: 16 km
• 6374 3.3 kW BLDC Motor
• VESC
• 8S LiPo Set Up
• 2 Ch 2.4 GHz Control

Project video:




Here is the drivetrain demonstration:





Full build guide and all the files can be found at:

https://www.instructables.com/id/3D-Printed-Electric-Longboard/


Thingiverse page:

http://www.thingiverse.com/thing:2188556

For a similar project you can check a electric longboard by Saral Tayal:

http://www.instructables.com/id/3D-Printed-Electric-Longboard-V2/

DIY rotational casting machine made from wood and 3d printed parts

If you want to expand your home manufacturing arsenal, here is a very useful machine that will enable you to make hollow objects from various types of resin.
This machine is easy and cheap to make from 3d printed parts and 15mm MDF sheets cut on a CNC machine. It was published on Instructables by Jorge Dorantes.
It is hand cranked, but it could probably be easy modified to run with a simple electrical motor.

All the files and instructions can be found at:

https://www.instructables.com/id/Rotomoldeadora/?ALLSTEPS


If you are not sure how this machine works, here is a demonstration video of a different rotational casting machine by TGS Props where they use two piece silicone mold and Smoothcast 65D resin to make, well ... raptor / alien  eggs!

Make your own DIY vacuum thermoformer

DajoM from Instructables published all the files and instructions needed to make a low cost DIY vacuumformer / thermoformer that fits on your desktop. You can use it to make plastic molds or patterns for production of larger series of objects.
It is made from laser cut plywood and uses ceramic plate for heating. Several parts are 3d printed.

Video demonstration:






All the files and instructions can be found at:

https://www.instructables.com/id/THERMOFORMER-VACUUM-FORMER-PATTERNMAKEKER/

How to Design and 3D Print a Key Copy

Anthony aka. "Proto G" made an Instructables tutorial on how to design and make a 3d printed copy of a metal key.


Here is the explainer video:




Full instructions can be found at:

http://www.instructables.com/id/How-to-Make-a-Metal-Key-With-a-3D-Printer/

Great Tutorial on Design and 3D Printing of Gears

Michael aka. "MechEngineerMike" published a very detailed tutorial on how to design and 3d print gears. It's a must-read if you want to print any kind of a gear used in a mechanical movement.

Here is a video of his gear light switch cover:




Full tutorial can be found at:

http://www.instructables.com/id/A-Practical-Guide-to-FDM-3D-Printing-Gears/

Here is his collection of customizable gears on Thingiverse:

http://www.thingiverse.com/MechEngineerMike/collections/gears-customizable

Low Cost 3D Printable Robotic Rover

"Slime Eel" published the robotic rover he developed and which is mostly 3d printable.

All the instructions and files  needed to make it:

http://www.instructables.com/id/Budget-3D-Printed-Rover/

DIY Gauss Meter with 3D Printed Enclosure

Anthony aka. "Proto G" published this Instructable where he made a useful DIY Gauss meter which is controlled with Arduino Nano. 

Project description:

In this instructable, I will show you how to make a Gauss meter than can measure the strength of magnets so you can compare different magnets you have. It measures the magnets in units called Gauss and has a relatively linear range from 0-4000 Gauss. It will measure beyond that but the numbers beyond 4000 Gauss should only be used for comparison purposes. In addition to measuring the field strength, it also detects the polarity of the magnet and will show North or South, respectively. My favorite part about this design is the ON/OFF switch. It's hidden in the enclosure so the meter can only be turned on and off with a magnet. Since this unit is meant to measure magnets, you're sure to have one on hand. You can use the same latching magnetic switch I designed for many other things like a secret compartment lock. Here's a video showing the complete assembly:

You can see the full construction manual at:

http://www.instructables.com/id/Dual-Sensor-Gauss-Meter/