Strong Nozzle
Release status: working
| Description | Strong Nozzle based on stainless steel cool end. Main goals - robust, passively cooled, easy to build hotend.
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Contents
Introduction
Advantages
In comparison with existing solution:
- Nearly unbreakable design
- No leakeages
- No active cooling needed
- Low thermal conductivity towards extruder
- Flexibility because of "spring like" stainless steel cool end
- Easy in maintenance, quick attach/detach from extruder
- Easy positioning, perpendicular by design
Disadvantages
BOM
Version 1
| Quantity | Part Number | Part Name | Details |
| 1 | 1 | Holder | Alloy plate 75mmx25mmx5mm |
| 1 | 2 | PTFE rod | 50mm long PTFE rod, diameter 8mm |
| 1 | 3 | Stainles steel pipe | 50mm long stainles steel pipe, outer diameter 10mm, inner diameter 8mm |
| 1 | 4 | Alloy rod | 20mm long alloy rod, diameter 20mm |
| 1 | 5 | Termistor | 100KOhm, diameted 2mm |
| 1 | 6 | Resistor | 3.3-5.6Ohm wire reistor, length 17mm, diameter 5.5mm, max temperature 360c |
| 1 | 7 | Allo threaded rod | Length 15mm, thread m6 |
| 1 | 8 | Cap nut | Brass M6 Cap nut |
| 2 | 9 | M3 screw | Length 5mm, thread M3 |
| 2 | 10 | Silicone cable 20AWG | Length 200mm, 20AWG |
| 2 | 11 | Silicone cable 25AWG | Length 200mm, 25AWG |
| 1 | 12 | Loctite 620 Retainer | Temperature range: -55°C to +230°C, 4 drops |
| 1 | 13 | M3 grub screw | Lengyh 3mm |
Manual
Version 1
Tools
| Tool Number | Tool Name |
| 1 | 2.5mm HSS drill bit |
| 2 | 10mm HSS drill bit |
| 3 | 4mm HSS drill bit |
| 4 | M3 hand thread cutting tool |
| 5 | Hand Saw For Metal Cutting |
| 6 | Flat file |
Holder
- Prepare pice of alloy plate [Part 1], by cutting it [Tool 5].
- Drill two 4mm holes [Tool 3]
- Drill 10mm [Tool 2] hole in the center
- Polish surface with flat file [Tool 6]
- Take two M3 screws [Part 9] and check if they suits properly
Cold end
- Drill 2.5mm [Tool 1] hole and make a M3 thread using hand thread cutting tool [Tool 4]
PTFE insert
Heater block
Nozzle
Testing
Examples
Photos
Hotend holder
Heater block
Cold end with holder and ptfe insert
Holder, cool end and heater block
Assembled hotend, silicon coating
Extruder gears printed during tests
Video
FAQ
Authors
- 3DMakers.pl
- Pawel Ratanczuk,
- Grzegorz Pietrusiak
