Ideal hot end design for PLA

In my old printer that only prints ABS i don't use any cooling, on the contrary, it has a closed chamber.
In all other printers imuse a cooling fan or compressedmair to cool the merlin. Since i seldomöy print PLA or PETG i only rig a material fan when i need it.
The airbrush nozzles usually only gets changed when a material experiment went wrong or i damage one mechanically by accident. Imhave some that ran for over a year with heavy use. They are cheap to replace.

Edited 1 time(s). Last edit at 05/02/2016 01:41PM by Srek.

---

[www.bonkers.de]
[merlin-hotend.de]
[www.hackerspace-ffm.de]

Pawan,

I will share all the info I can get, but for the last year I been working with quartz tubes as thermal brake, my intention is to be able to print with high temp materials like polycarbonate and PEEK and so my hotend design is specific for that purpose.

I already ordered the parts from shapeways since I don't have access to machinery and i'm using experimental materials. the total cost of my hotend will run about 200 dollars and it might be useful only for me.