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Rapid prototyping
with plastic gears

3D printed plastic gears for charging system for electric cars

Profile

  • What was needed: Plastic gears for prototypes
  • Manufacturing process: igus® 3D printing service
  • Requirements: Wear resistance, robustness, fast delivery
  • Material: iglidur® I6
  • Industry: Automotive
  • Success for the customer: Time savings through simple online configuration and fast delivery, elimination of tooling costs, variety of options
Easelink, a company from Graz, has developed "Matrix Charging", a charging system consisting of two components. A charging pad connected to the mains is installed in the car park. A connector on the bottom of the e-car drops down when parked over the pad. The charging process starts automatically, without the driver having to connect a cable – similar to inductive charging, but with up to ten times the charging power and with 99 percent efficiency. During the development process, the designers created a production-ready component through several prototypes. In order to keep the expenses as low as possible and still enable high quality, they used the igus® 3D printing service.

Time and cost savings with the igus® 3D printing service

The future should be in e-mobility. Only the electric cars could not prevail so far. An important factor is the insufficiently developed charging infrastructure. For many drivers, the available recharging facilities are very rare. Easelink wants to change this. The innovative start-up has developed 'Matrix Charging', a vehicle charging system consisting of two components: A charging pad connected to the mains is installed in the car park. A connector on the bottom of the e-car drops down when parked over the pad. The charging process starts automatically, without the driver having to connect a cable – similar to inductive charging, but with up to ten times the charging power and with 99 percent efficiency. During the development process, the designers created a production-ready component through several prototypes. If costs and time get out of hand during this phase, prototyping can become a stumbling block. But Easelink skilfully manufactured the components. They used the 3D printer to make the gears in the mechanism of each of the connector prototypes.
Matrix Charger with gears printed in 3D made of iglidur® material together with an electric car

Configured quickly online

An online gear design for the igus® 3D printing service takes about 60 seconds. The delivery then takes place from 24 hours. Unlike gears manufactured with industrial printers and are ready to ship after up to 3 days. "In prototype construction, high flexibility and fast delivery times are crucial," says Hermann Stockinger, Easelink founder. "It is precisely these factors that we appreciate - to quickly select and print gears in many variations via the igus online configurator." “
 
Another advantage, along with the unbeatable time savings, is the cost-effectiveness of igus® service, since all tooling costs are eliminated. The designer only needs to select the gear module, and set the number of teeth and the torque transmission. The configurator creates a 3D model of the gear, the basis for 3D printing. Hundreds of variants of single and double gears can be created without using computer-aided design (CAD) software.
Matrix Charger with gears printed in 3D made of iglidur® material

iglidur® I6 for high wear resistance

The most suitable material for gears is the iglidur I6. The high-performance plastic withstands ambient temperatures of -40 to +80 degrees Celsius, is pressure-resistant up to 44 MPa and has a high wear resistance. It was proven in laboratory tests that it is significantly more robust than the classic plastic polyoxymethylene (POM). Here, gears were operated at 12 revolutions per minute (RPM) and loaded with 5 Nm torque. The result: The 3D printed gear made of iglidur I6 was still fully functional after a million cycles, and the wear hardly measurable. Unlike a machined gear made from POM. It was worn out after 321,000 cycles and broke down after 621,000 cycles.
Buy laser sintering material iglidur I6 online

Further application reports

The terms "igus", "Apiro", "chainflex", "CFRIP", "conprotect", "CTD", "drylin", "dry-tech", "dryspin", "easy chain", "e-chain", "e-chain systems", "e-ketten", "e-kettensysteme", "e-skin", "e-spool", "flizz", "ibow", "igear", "iglidur", "igubal", "kineKIT", "manus", "motion plastics", "pikchain", "plastics for longer life", "readychain", "readycable", "ReBeL", "speedigus", "triflex", "robolink", "xirodur", and "xiros" are legally protected trademarks of the igus® GmbH/ Cologne in the Federal Republic of Germany and where applicable in some foreign countries.

igus® GmbH points out that it does not sell any products of the companies Allen Bradley, B&R, Baumüller, Beckhoff, Lahr, Control Techniques, Danaher Motion, ELAU, FAGOR, FANUC, Festo, Heidenhain, Jetter, Lenze, LinMot, LTi DRiVES, Mitsibushi, NUM,Parker, Bosch Rexroth, SEW, Siemens, Stöber and all other drive manufacturers mention in this website. The products offered by igus® are those of igus® GmbH