Fixing a broken blind.

The plungers that you squeeze together with your fingers, to operate the blind, have a plastic pin which locates into a hole in the slider. The pin shears off the body of the plunger, so no longer moves the slide - technically it's a weak design, although not many actually break, we get a couple each year. The solution is to either buy a cheap blind from a breaker and cannibalise it for parts, or you can repair it. Basically it needs skills similar to model making. The usual approach is to take it apart and then locate where the pin used to be. Then drill a hole in the plastic and glue in another pin. You don't even need glue if the pin is a good fit. This could be a bit of broken drill, or a small "seloc pin" also called "roll pins" from a model engineering shop, or anything that your ingenuity can come up with. It's only the equivalent of a finger in a hole! The bad news is that you have to disassemble the whole blind just to get at it. I once spent hours of my life that I will never get back thinking that I could drill a hole from the front and then insert a screw so that the tip would locate in the hole. The trouble is that you don't actually know where the flipping hole is, so it's guesswork and easy to ruin the whole thing. So easier to just bite the bullet and disassemble. You then can see exactly where the hole needs to be drilled because there is a mark where it used to be. 

If you look for spares from a breaker, then you need to know that the blinds are made by a company called "Seitz" - "the ones from 20 years ago that you squeeze together to pull them up" - most breakers should know what you mean. It doesn't matter what size blind it comes from, as the part is the same on all blinds. It is unlikely that you will just be able to buy the part - most breakers will charge you for the whole blind. The going rate (2016) is around £30 a blind. If you have a choice, buy a blind bigger than yours, then you will have spares that can be cut down.

Have fun!