Been asked to help a guy out in the UK with a Harrison M300.
He's got one with a bad screw cutting chart and Harrison's do not have any spares for this model.
Here's a shot of the plate in situ.
And a close up of it.
As you can see the lower part is unreadable.
Took the details and laid a new plate out in CAD, took two nights whist also watching a couple of programs I wanted to watch on TV, not as bad as it seems as copy / paste comes into it a lot.
So far this is what I have.
This is a bmp from the CAD program and it looses clarity but the CAD file is 100% clear and I now have this as a DXF.
Going to do four plates using different methods.
One is to engrave this normally on some metalised [ true metal ] engraving plastic. This will give a plate very similar to the original, silver with black letters.
Second plate will be laser engraved on laser metalised plastic which is less durable but will be quicker and interesting to see the differences.
Third method is to laser engrave on anodised aluminium, this should be a more durable method but it will be reversed, black plate with silver letters as the laser burns the anodising off, it's not powerful enough to burn onto the plate.
Last method will be to direct engrave onto some stainless sheet using a carbon impregnated spray coat so the laser burns the carbon into the stainless to form the letters.
Probably take a couple of weeks to fit this in with other jobs and get the plate anodised.
watch this space.