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Step 6Drill Out Center of "Scrap" to Make Arched Roof
1. Get yourself a drill press vice (endlessly useful when using drill press as a "hasty milling machine").
2. Clamp the engine in (being sure to protect it with pads) and drill out the center of the scrap after marking the thickness of the roof with the compass. Drill the hole with two forstner bits, the first one small ~ half inch and the second large ! 1 inch. The smaller hole helps clear the waste from the larger drill size since the waste has somewhere to go, besides easing the drilling process with two passes.
2. Clamp the engine in (being sure to protect it with pads) and drill out the center of the scrap after marking the thickness of the roof with the compass. Drill the hole with two forstner bits, the first one small ~ half inch and the second large ! 1 inch. The smaller hole helps clear the waste from the larger drill size since the waste has somewhere to go, besides easing the drilling process with two passes.
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