YouTuber presents 3D-printed spring drive module with steel spiral

YouTuber Robert Murray-Smith has presented a mechanical drive module that combines an industrially manufactured steel spiral with a 3D-printed housing. The aim of the project is to offer a robust, easily replicable solution for mechanically driven applications. For example, in model making or for experimental constructions in the low-tech sector.

A return spring made of spring steel forms the core of the system. It is typically used in cable pull starters for chainsaws and other motorized garden tools. The spiral with a diameter of around 60 millimetres is mounted centrally on an axle in the housing and fixed in place with a 3D-printed retaining mechanism. The spring stores mechanical energy when it is wound up and the system then releases this energy in a controlled manner via a gear wheel.

The housing itself was designed with Tinkercad and consists of several functional parts. A base plate, a cover with safety catch, a detent unit and an integrated gear wheel module. The design allows different spring sizes to be used, as critical dimensions such as the installation height can be easily adjusted in the CAD model. The structure is designed so that no gluing is necessary – all parts can be joined together mechanically.

In contrast to PLA springs, which quickly reach their load limits in 3D printing, the combination with a steel spiral offers significantly better durability and a real usable energy density. The module can be used as a drive unit for watch mechanisms, small vehicles or other mechanical concepts.

Murray-Smith provides the complete model free of charge on Thingiverse. All required STL files are available there.

---

Metal Binder Jetting: The Key to Efficient Tool Manufacturing? - Exclusive Insights from INDO-MIM

Fill out the form and get instant access to an exclusive webinar on HP's Metal Binder Jetting 3D printing technology with exciting insights from INDO-MIM.

Please enable JavaScript in your browser to complete this form.

First Name *

Last Name *

/ Company GDPR

Company / Organization *

Job Title *

Email *

Phone *

Country *

Industry *Consumer Goods & ElectronicsHealthcareAgricultural MachineryElectrical ComponentsEnergyHVACOther Machinery & EquipmentPipes, Tubes, & Fluid SystemsProcessing & Packaging MachineryRoboticsTextile MachineryWire Harness & Cable Assemblies3D Printing Service BureauCNC Job ShopContract ManufacturerEngineering CompanyInjection MolderMold MakerProduct Design AgenciesMilitary, Defense, & AerospaceMobility & TransportationResearch & EducationOther

Contact *EmailPhoneDo not contact me

By filling this form, HP may contact you to keep you updated on offers, updates and events. Please, select your preferences.

GDPR Agreement *

• When you submit the form, the data is transferred to 3Druck.com and HP. An HP employee may contact you using the contact details provided.

You can find out more about 3Printr.com's privacy policy here.

Access the webinar free of charge

Subscribe to our Newsletter

3DPresso is a weekly newsletter that links to the most exciting global stories from the 3D printing and additive manufacturing industry.

First Name

Last Name

E-Mail*

Privacy Policy*

I want to register for the newsletter for free.  

You can find the privacy policy for the newsletter here. You can unsubscribe from the newsletter at any time. For further questions, you can contact us here.

Subscribe for free