1

Some how my throat screw snapped in two. It’s held together by the tube inside it, I believe that is PTFE tubing that runs in through there but not sure.

Anyhow, I see online where I can order a replacement but was wondering if you if this is a type of thing a hardware store would carry? I can’t imagine this screw was invented purely for 3D printers. There must be other applications for it. Does anyone know if a hardware store stocks something like this?

2

No, you can’t get them in the hardware store. It is designed only for i3 printers.

3

You can get them on eBay quite easily.
As they live in a hot environment, the tube must be made of PTFE otherwise it would melt.
I doubt a local hardware stall would have exactly the right size.
I know it’s frustrating to be short of parts, but its worth getting the correct tube otherwise it could clog up.

4

http://s.click.aliexpress.com/e/c96Q2UjI

5

I thank you all for your help. I found a 5 piece set; 5 throats and 5 nozzles on Amazon with a two delivery. It was around $9 and I got shipping free for being a Prime susbscriber. I should get it on the 17th. If I wanted to wait a bit longer I definitely could have got them cheaper and waited for them to get here on a slow boat from China but I’ve been making Christmas ornaments with my kids and we would like them on the tree at Christmas. I really don’t know how that throat broke. We were just printing along and suddenly the hotend looked wrong.

20181217_182745
20181217_182745.jpg4656×2620 3.45 MB

6

I suppose I should close this out. I was curious and, perhaps I should close out this thread and ask in a new one, if any of you have switched extruders and which one you chose?

7

I recommend Titan aero but it your choice use it or no.

8

That Titan looks beautiful. Do you have one? How is changing filaments? It’s a pain in the ass on the A8 stock. I believe it’s by pure luck I’m ever able to change the filament. I hate it. Does the Titan work with the existing motor or would that need changed also?

9

Filament change in one click.
Titan work with any NEMA 17 but i change to 22mm because it is lighter in weight.

You need remember it Titan gearing ratio is 3:1 because small stepper work very well.
in default steps/mm = 837
I use the original and the Chinese model, they are almost the same. (100GBP+ vs ~30EUR)

vs
http://s.click.aliexpress.com/e/jtn1IRA