The Yankee Girl mine has a pair of stationary coal fired boilers to generate steam for the hoist engines, a dynamo, and widowmaker rock drills deep underground.
The boiler kits use a rectanguler cast resin block for the boiler and firebrick, and have white metal faceplates for the smoke box front, instrumentation, and firebox doors. I want to have an orange LED fire inside the firebox, with a cellophane cover to illustrate coal paint and maybe some blue ish-orange flame between the LED and viewer.
Easiest method would be to cut a three sided rectangular slot across the bottom of the resin boiler block, and set the boiler down over the pre-assembled fire, but with a faceplate only on one end, that would show in the firebrick at the back. Therefore, I have to cut a partial three sided rectangular slot in the bottom of the resin boiler block, that doesn't extend all the way to the rear of the unit.
Best way to machine this?
Available tools are drill bits, a pin vise, a cordless, a small drill press, a moto tool with various bits, jewelers files, various exacto blades, and chiesels down to 1/4 inch width. How fast will this resin casting foul milling type moto-tool bits? Moto saw blades? Drill bits?
How would you make these cuts, and why would you choose that method?