Halbach Array Linear Direct 3D Printer Extruder Drive

10 (likes)
4678 (views)
This product is available only if you have an account in My Mini Factory service
×
Color:

An extruder with a stepper motor is used in my Pusa I3 and also in almost all 3D printers. I decided to develop a lighter extruder drive based on a 3-phase linear actuator with a magnetic Halbach array. It is designed to directly replace NEMA17 in any 3D printer. I wanted to use VCA (Voice Coil Actuator) as a drive, but VCA is very expensive and weaker than the drive with 3-phase coils and a magnetic Halbach array. https://youtu.be/aeM0KQuF120 Features of the extruder drive: High Force to Weight Ratio High continuous and peak forces Weight 4.2oz (119 grams) High Accelerations Halbach Array magnetic system Scotch Yoke mechanism. For a full description of the drive, see here:http://www.instructables.com/id/Linear-Direct-3D-Printer-Extruder-Drive-Fusion-360/ We need 5 Neodymium Rare Earth magnets 5X5X25mm N42 magnets or use compound magnets, they will need 10 pieces.https://www.indigoinstruments.com/ The diameter of the wire can be changed if a larger force is required, but the consumption current will increase. Tests with a 3-phase bridge driver showed that the drive effort is sufficient to operate as an extruder drive. This is an experimental device, work on it continues.

About the author:
TanyaAkinora
Hi! My name is Tanya. My hobby is 3d printing. I like to create new things and decor. All my models were created in Autodesk 123D Design and Fusion 360.  

Reviews

This model have no reviews. Would you like to be the first to review? You need to print it first.