3D Design

3D modelling is brilliant!

I’ve just bought my own 3D printer (Ender 3 v.2 from Banggood for 200 quid! – no brainer!).

ender 3v2

It comes in a flat parcel so the frame etc are self-build but its not too tricky if you follow this great tutorial:

A little tricky to level the bed first time but it’s worth following Bryans advice and downloading the levelling programme onto the Micro SD card that comes with the printer (in a cute little USB holder). See the pic below for my first print:


Pretty damn good! However it took forever! 4hrs from start to finish for a 60mm high/20gms cat! Bryan gives you some temperatures at which to run the printer for your first print (60 degrees bed temp., 200 degrees nozzle temp.) – these worked out OK however check the sticker on the side of the spool of PLA you bought, it should give that particular PLA’s best operating temperature – I was in such a rush to print that I didn’t read the instructions which actually specify 210-235 degrees – however the print still came out OK.)

I needed a filament threading guide so found one on Thingiverse and quickly printed it up. This shows the internal structure:


I’d bought a spool of yellow PLA in advance as I new that I’d like to mod the machine straight out of the box. Nothing technical, just appearance mods. Any technical mods (such as changing Bowden tubes etc) as I’ve  been advised to wait for a while until I am sure the machine is working OK – this advice comes from Naomi Wu – check out her vids as I’m sure you’ll be impressed.

In order to make full use of a 3D printer, and not just print other people’s designs, you’ll need to learn how to use 3D modelling software.

The first bit of 3D modelling software you will probably use in school will be Google Sketchup:

To learn how to use Sketchup start here:

However, if you want to learn to use a really powerful piece of CAD software try: Autodesk Fusion 360 and students can get a free educational licence:

For teachers (and students): Don’t try and re-invent the wheel as there are lots of free, printable, 3D files here:

Screenshot 2020-12-08 at 20.52.24

These are great to use as research or to help you model your own designs.


Some of the boys I have taught have also been using OnShape with great success:

Other industry standards are Solidworks: