Here's a template of the Medic's Ubersaw
I built mine as one whole layer then added the arms and plate for the 2nd level to make it look right .
I used 12mm MDF .
If you wanted the needle part , Drink a can of KIK,Fill it with expanding foam insulation,Then a nice 6mm dowel stabbed through the middle and setted.
Template with measurements based on the medic stature
Due note do not print and use to scale, It will fail