I'm a beginner woodworking enthusiast, and I'm planning to build my own marking gauge instead of buying one. I've already shaped a rectangular block of wood and am drilling a 1-inch hole to pass a dowel through it. I also want to make a small wedge to hold the dowel secure. Now, I'm torn between two options for the marking end: I could use a pin by hammering in a nail, which seems easy, but I'm concerned it won't leave clear enough marks on the wood. Alternatively, I could use a blade from my utility knife, which might create better, more visible lines, but it's a more complicated process. What do you think?
3 Answers
Here are a couple of awesome resources you should check out! The first video showcases a great method for making a marking gauge, and the second one gives more tips on wood marking techniques. Might help you decide between pins and blades! #1: [Link to Video](https://www.youtube.com/watch?v=tm7AFpc02gA) #2: [Link to Video](https://www.youtube.com/watch?v=2P4PhF-poJY)
You might want to consider a wheel gauge with a blade! They provide clean indentations perfect for guiding your saw, cutting through the grain better than a pin would. Plus, a blade can help you maintain a straight line with fewer chances of veering off course. Here’s a cool design to look at that demonstrates this concept.
I’d recommend skipping the dowel and just going for a long, heavy nail instead. File the head flat to create a blade function and drill a hole in a sturdy hardwood block for the nail shaft. Make sure the block is around 1.5x1.5 inches and at least 2.5 inches deep to provide stability. You can secure it further with threaded inserts and a thumbscrew for a solid grip. This method gives you a more reliable gauge. Check out this design for inspiration!

Thanks for the links! I’m actually using Rex Krueger's design from that first video as a base. But I’m still deciding between a pin and a blade. I might even try adding a circular blade similar to what’s shown in the third link, though my tools are pretty basic without a drill press.