When it comes to cutting a straight line with an angle grinder, there are many considerations. It is important to know the right safety procedures and how to use the tool properly, but you also need to have a good understanding of geometry. In this tutorial, I will go over some tips and tricks that can help you cut lines in your workpiece with an angle grinder.
The first thing to remember when using an angle grinder is that the cutting wheel should always be spinning in its direction of motion. This will keep it from making gouges or dents in your workpiece, which can cause problems later on.
First, you need to set up a straight edge for both the front and back of the cut. This is essential for any angle grinder project, but it becomes even more important when you are cutting a straight line with the tool because this will give you starting and finish points and ensure that everything stays true to that orientation while you cut.
Next, find the centre of your workpiece by drawing an X on each end. Then use the edge of one side to draw out a line down its length in both directions until they intersect at their opposite ends. You can now mark off where your cuts should be made and measure how wide of a kerf (the distance from the blade to either side) will need to go into each board. Make sure not to get too close or too far away from these marks so as not to make the cut too wide or too narrow.
1. Make sure the angle grinder is switched off and unplugged
2. Wear safety goggles and gloves to protect your eyes and hands
3. Put on a dust mask to protect your lungs from any harmful particles
4. Measure the length of line you need to cut with a tape measure, then mark it on both sides with chalk or paint
5. Place one end of the line against a straight edge such as a table saw fence, which will help guide your angle grinder along an even path while cutting
6. Ensure that you have enough space around the object you are cutting for the disc to rotate without hitting anything else
7. Hold the angle grinder at an appropriate height so that it will cut through what you want to cut, but not too high or low as this will make it difficult for you when using it
8. Hold the angle grinder in your dominant hand
9. Turn on your angle grinder and place its blade at 45 degrees to where you want to cut
10. Place the cutting wheel against the edge of what you want to cut, then hold it firmly with your other hand
11. Place the point of contact with your object where you would like to start cutting, then move along in a straight line until finished.
12. Push and pull the angle grinder along at a slow speed until you’ve reached where you want to cut, then remove it from the surface
13. Place the grinder on one side of the straight line and gently push it along the edge, keeping your hand steady and ensuring that you don’t go over the line (if you do, just use sandpaper or a file to remove any burrs)