Wednesday 22nd January 2020

Worklist:
3D printing - pallets.
Discuss wiring investigations.

Laurence was a bit under-the-weather and sensibly chose to stay at home.

The possibility of making some pallets for the mason's yard had appealed to Stephen, who had researched and then produced a drawing, for Geoff to test on his relatively unused 3D printer. The pallet was drawn upside-down, with the bottom stringers omitted to enable the plastic to be built-up off the printer bed without temporary supports. Stringers will be glued on once the pallet has been cleaned up and the 'inside' painted.


Over our first cuppa, Geoff got to grips with the printer that had been set up in the dining room. Still new to the process, several printing options were tried and adjusted until something vaguely recognisable was achieved without too much mess.


The first two 'usable' pallets printed one at a time. The loose sprues of plastic need removing, but they were very pleasing.


More adjusting and testing produced something usable and finally, a production run was completed. One panel failed to adhere to the base and a piece of card was taped in place to allow successive layers of molten plastic to be laid down without spreading onto the adjacent panels. We decided it was a plywood faced pallet that would definitely find its way onto the layout.



A set of ten printed in one go, including the 'plywood - rescue' pallet. They'll fill up lots of corners of the yard, with minimum work from us.


Being a stone masons yard, the main product would be carved stonework. An online search for free 3D drawing files resulted in nothing suitable, so a mixture of funereal and construction products will have to be researched and created 'in-house'. Another feature high on the wish list was a lifting frame and a search produced a very attractive example.



That was the morning used up. After lunch the warmth of the dining room seemed the perfect place to run through Stephen's investigations on the future wiring requirements. It was agreed that a survey of the existing panel wiring, plugs and sockets was required as well as assumed connections for the new Local control panel and loom. Board, track and connection sketches were laid out and checked against spreadsheet pages of panel, plug and socket references that will form the basis of the survey. The main issues were the different configuration of boards using the same looms and connections across board joints, but the schedules stood the investigation. The survey is next, then the purchase of new Cinch plugs and sockets, wiring modifications and ultimately, a new control panel and loom.