WILLPOWER

'Willpower' is something people are often heard saying they need more of... like when they start a diet, want to get fit, aiming for a challenging goal. Making changes in what you do and/or how you do it usually takes a fair degree of... Willpower'.

Now you can get more... 3D print your own 'Willpower' battery pack. That's the fun/novel idea behind this simple print. However, done right it's another great example of what you can do with 3D printing because the 'Rotating' version has a sleeve that spins around the Centre part.

The process is very straight forward... print the Sleeve first (including colour changes if you want). You need to print this first so its ready for later in the process...

With your Sleeve completed print the Centre part but pause your machine almost at the end of the print, slide the Sleeve onto the uncapped Centre section, making sure it's fully seated at the base of the Centre part, then finish the print.

The change point is critical. You have t