It may be obvious to you, but I haven't seen that anybody's said it - but always cut so that the grain runs into the straight-edge, not away from it. This way the the grain pulls the knife up against the straight-edge and you don't risk cutting into the piece. Using a beefy straight edge and clamping it in place with the piece under it is also a good practice if you are having trouble getting a cut.

Don't spare the blades. They're cheap. A dull blade is a quick way to frustration.

Also, if you are having issues getting a piece loose, you can bandsaw or fretsaw a little wide and sand to the line. I have a little hardware-store belt/disk sander - and I'll put a piece on it and turn the disk by hand for a little gentle sanding that I know is at a good 90 degree angle. Another choice is a British Pattern mortising chisel - some of them, unlike American Pattern chisels, have 90 degree corners and sides. One can put the part down flat, put the chisel against an edge, and pare away material with great precision.

@DerrickW

Hi Derrick, I fully agree with Jumpugly.

I’ll just add one thing: when using a utility knife, use a steel ruler to guide you—even if the wood is already pre-cut.

To create a guide line on the reverse side, make a deep incision at the start and end of your intended cut; you’ll then see the exit marks on the other side, which you can connect with a straight line drawn in pencil. Afterward, simply make your cut along this line, again using the steel ruler.

I hope that makes sense!

Yessir. The flip is very helpful if you've managed to get the knife through at some cardinal points that reveal to where you need to cut. You can also slightly bend the sheet to reveal the reverse original scribe marks. It takes practice and is doable, but don't rush it.
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Do you do the “flip over and attack from the rear side approach” ??? Derrick

@jumpugly Hi Guy, thank you for the tips , this kit is definitely a challenge to get the sections out without butchering them 😳💪🏻… now I know what you mean by die crushing 😄… that little scalpel I’ve been beavering away with ( no 11blades .. swooping out regularly) is taking a long careful route in getting them out … I’m aware of not rushing as it will be a long way back repairing them I’d mess up 👍.. I’ve got a Stanley and a lot of spare blades .. going to proceed with that suggestion 👍.. the blade width is bigger and the pre tracks in the wood are VERY THIN!!! … . I’ll report back with progress .. fingers crossed 🤞. Many thanks Derrick

Hi Derrick:
You could use a much heavier utility knife with tons of extra blades and a nice metal straight edge on a tough cutting pad or a plank of wood. The classic Stanley carpenter's knife has saved me many a time as it has a much beefier grip. You can then switch to #11 X-acto's as they are great for the small stuff where tons of pressure is not required. I've even used Medical scalpels, but they don't hold up.

Take your time, it's not unusual to spend a weekend just fighting through die-cut (or as we like to call it "die-crushed") wood., especially plywood sheets. On many kits the die-cutting is so bad that it has become the stuff of legend, on other newer kits, laser-cut sheets have become a Godsend. Above all be patient and go slow.
Best -- Guy
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