For those who are using canned air you might want to check out this site http://bearhugquiltworks.blogspot.co...s-to-wise.html
I have never used canned air in any of my machines. And after I saw this article I was very glad that I hadn't!
I bought a $35 portable vacuum cleaner (for the car) at Walmart and I attach my Clotilde vacuum attachments to it. It has a hose on it. It has a charger on it also, so no messy plug ins. I found it in the vacuum isle at Walmart. Some Walmarts carry them in the car department. They are the size of a small breadbox. Very handy. They come with lots of attachments. I use it for the car and around the house and for the sewing machine (attaching the mini attachments to it).
I agree that the little battery operated computer vac is useless. It isn't strong enough to suck up anything, but...
It does come with a nice attachment for getting into the tiny areas around the bobbin.
So, I got out my duct tape....and secured the attachment to the hose of my hand held vac. That works great. And because it's a hand held vac, if I accidently vac up something important, it's not hard to find in the little lint filter. That wouldn't be fun in a regular vacuum!
Stores like Lowes have some small handhelds for shop use. I have a 1gal wet and dry in the garage. Small and light. Has a hanger. If you just keep it in the house and use it for sewing room, it makes no difference that it's a small shop vac.
Ladies, ladies, you can buy the vacuum set at WalMart and Harbor Freight. It's around $10 at WalMart and les than that at HF.
I have a Riccar sewing machine vacuum from years ago and I like it a lot.
I used canned air on the outside of my machine, to blast lint off of the presser foot and the like, but only with the plate ON so nothing goes into the machine. And when I pull the bobbin case out I'll blast that separately, but I don't blast anything inside the machine because it's not really going anywhere except deeper into the machine.
I use a little plastic-bristled paintbrush to grab lint gobbers. The longer handle lets me dip into the machine easier and it's kind of splayed out from years of usage so if I just touch lint, it'll grab it. I reach into areas the dealer would probably tell me to stay out of, but I'm careful and gentle and so far all is well. DON'T use a natural brush, the bristles will come out.
Canned air works to blast the lint off the brush too. (Aimed into a trash can, of course) It's also good for scattering annoying cats!! LOL (I don't actually shoot the cats with the air, just the noise scares them off.)
I use pipe cleaners (leftovers from my DH) or chenille stems from the craft dept. to sweep into tight spots on my machine. Isn't it amazing how much lint can gather under the bobbin? I'm also amazed at how much lint some fabric deposits under the blade of my rotary cutter. Need to disassemble it once in a while too!