I have built a workshop but didn't really want to just put my Dickson tool holders on a shelf, I had seen various designs & a supplier of a pre-made one, then a friend pointed me in the direction of a 3d-printed holder that sits on a bar. Using this as inspiration I thought I could design something that I can screw to the wall. I decided I would make them as individual items so I can just print more as I want. Here is the end design.

I printed one, only to find that not all the dickson (style) holders were the same, so some didn't fit. A quick change and here is the first one attached to the wall.

I now need to print another 10, at about 2 hours each it will take a time! 2 more are printing as I type, I could have got it to print more in one go, but I don't want it running overnight really.
Having done this I may make more special storage for other lathe accessories, such as allen keys, chuck keys and chuck jaws, all good for learning 3d-cad, this time may be Solid Edge so I can compare that with Fusion360.
For those interested the design was complete in Fusion360, the hardest part was working out how to put in the screw-holes perpendicular to the back, then put the counter-bore from the front, but not at an angle. After a bit of looking at web-pages I realised what I needed was to create a plane from the back, offset forward, draw on that and make holes from there, simple once I realised that.
Baldric.