Extruderinsulator

From RepRap
Revision as of 11:31, 29 January 2011 by Bodgeit (talk | contribs) (Calcultaions)
Jump to: navigation, search

Materials

Peek or PTFE

Benifit of Peek

no dangerous fumes if over heated.

I have 16mm diameter PEEK rod.

Disadvantages of PTFE

dangerous fumes if over heated

I dont have any PTFE.

The Original Reprap Mendel design:-

Thermal-barrier.png

New Idea for a PEEK version of the insulator.

Diffrence from original.

1/ The top of the insulator is D shaped.

2/ The insulator mounts through a 6mm thick D Shape hole to stop twisting.

3/ The insulator is held in place with an E clip

4/ The filament clearance hole is bigger at 4.2mm

5/ The heated barel threaded length is much shorter.

6/ The heated batrrel is 25mm long

PEEK Idea.png

Calcultaions

Calculations for the thermal insulation of these insulators calculated here.

PEEK = Thermal resistance 0.25 W/m.K