For the wasteboard’s X axis width, have an MDF board of 18 or 19mm thick from your local DIY store – and cut-to-size of about 120mm shorter than the actual size of your Y axis machine size. So a 1000mm X axis size, get a 880mm X axis width for the MDF for instance.
For the wasteboard’s Y axis length, have an MDF board of 18 or 19mm thick from your local DIY store – and cut-to-size of about 1 or 2mm shorter than the actual size of your Y axis machine size. So a 1000mm Y axis size, get a 998mm Y axis length for the MDF for instance.
Some DIY stores that sell MDF per country and in most cases they also offer cut to size services:
Now, the holes for the rails can be drilled.
In the Y axis direction, choose an interval for drilling holes and then attaching the wasteboard to the frame rails. For instance, every 50cm.
You will mark that at the edges. If you have an extra rail for supporting the middle of the wasteboard, then you can also mark these distances at the center of the wasteboard.
Then, mark all the markings at the edge, at 1cm from the edge:
Then, drill the points with a 10mm drill or a 12mm drill to a depth of 5mm. There are tools to screw on a wood drill, so you can drill precisely 5mm deep:
Then use the dot that is left from the 10mm or 12mm drill, to drill further (through the MDF now) with a 6mm drill.
Then, put a M5 x 20mm button head screw in each of these holes (the button is in the 5mm inwards bit) and put a post assembly T slot at the other end:
There is a choice of two heights to attach the wasteboard: either at a height of 4cm, or else at a height of 8cm. This is purely done by choosing the orientation of the wasteboard support rails (with their tallest side up or not).
I recommend that you choose the situation where the wasteboard is put at it’s lowest position – as the workbee type CNC otherwise has a very small work distance for the Z axis. Usually, the extrusions in your kit will also be for this type of wasteboard situation. If you need the other situations, then let us know so we send more 2040 rails if you need these.