Thread breaking? How to repair needle plate

Totally chewed up needle plate-- it happens

Has your thread been snapping in the middle of a seam? You've checked the tension, the bobbin, the top thread and you're using a new needle. What gives?? After long wear and tear (especially as a beginner, or if you get a used machine) the hole the needle goes through can get dinged up and form metal burrs, ragged spots that can easily snag your thread. It's easy to fix the needle plate, if you have a few inexpensive tools.

First, you'll need to remove your needle plate (also called a face plate, or throat plate). It should come off by loosening two screws, or some machines have a spring-loaded plate that can be easily wedged off. To remove the plate, grab either the small, flat metal screwdriver that came with your machine (a pretty nondescript metal disc or t-shape) or a mini flathead screwdriver. You'll want to have one of these anyway for basic maintenance.

Why so small? The clearance on a sewing machine isn't very long or high-- you can't get a regular screwdriver in there. Trust me, you'll find multiple uses for a mini screwdriver. I'm gonna be repping Harbor Freight a lot in this post. It's like the Grocery Outlet of tools.

You also need a mini file or two-- it doesn't take power tools to take the metal burrs off your needle plate. This file set was under $5. Could you use a nail file? I'm not going to say no. But it might require more than just a flat plane, and you'll probably mess up your nail file.

Start by unscrewing the small screws that attach the needle plate to your machine. VERY IMPORTANT-- put the screws in a secure spot so they don't roll away. I recommend a magnet (I use my magnetic pincushion). While you're in there, get an old toothbrush and pick out all the fuzz (do not no use canned air, no no no.)

Now for the actual job. With the needle plate off, you can inspect the top and bottom of the plate and feel for jagged places in the metal. Be careful, of course. If you don't see anything, put a piece of thread through the hole and act like you are flossing it. Does the thread snag anywhere? Does the thread break? That's the spot to concentrate on first.

This gap where the needle goes down into the bobbin is pretty small, so get the smallest files you can. You will need to file any spots you see disruption in the metal. File front to back, then also back to front. Try to go at an angle. If the burrs are very bad on the top flat part of the plate, you may have to file the surface. It will not look pretty, but you want to prevent those snags. Keep feeling along the needle hole to see if it's still rough.

This is the spot to focus on, where the needle goes down into the bobbin.

If you think you've gotten all the burrs off, run thread through the hole again to see if it is still snagging or breaking the thread. If all is well, put the needle plate back on and thread your machine. Run a piece of scrap fabric through to test if the thread is moving through smoothly.

If that doesn't work, and you've checked all your threading, bobbin, needle and tension, might be time to visit your local machine repair shop. I hope this helped!