Also, whatever you decide to cut with should be held as horizontally as possible.

How to cut foam board curves. Then, as near as possible, pass the utility knife. Your goal for the first pass is to lightly score the upper layer of. Cutting curves can be challenging because the foam is more likely to.

Be consistent and gentle in shaping or curving out the extra foam to make it. This is a tip s. You can cut curves or straight lines,.

Figured i'd do a quick vid to show my technique.url to the 3d plans for the knife handle i am using ht. Hot wire foam cutters are the fastest, cleanest and easiest tools to use to cut rigid polystyrene foams, like styrofoam, white beaded eps, and xps foams (blue and pink. Using a marker, draw your desired shape onto the thick foam board.

First, use your utility knife to score the insulated foam. Cutting through both thin and thick foam board works best when the cuts are straight lines. To cut curves, hold the knife perpendicular to the foam and use a short sawing motion.

For best results, follow these steps for cutting curves and cutouts in thick foam board: Straight cuts in rigid foam insulation board are easy with a razor knife. This is the best way to cut foam board insulation with a utility knife.

A few comments on my clean curve cuts in my builds. Use a utility knife and straightedge to cut through thin board in several passes. Prepare your tool to cut the foam into the right size and shape following the measurement.