Cap for Silicone Cartridge Version 5

Model

A screw-on cap for cartridges to reduce drying out

The cap has an internal cone to improve the seal

This design requires very little filament (approx 2.5 grams) and is still very stable

A similar model by me can be found here

Version 3

• Additional chamfer for easier screwing on
• Additional chamfer at the top for a better appearance
• Additionally, the thread tapers into a cone

Print

• Material: PLA, PETG, ABS
• Nozzle: 0.4 mm
• Layer height: 0.2 mm
• perimeter: 2 are sufficient
• Infill: 20% Archimedean Chords
• Layers: 5 bottom, 4 top

Version 5

Unfortunately, users have reported that the cap breaks if screwed on too tightly. For this reason, I have tried various modifications and the result is this Version 5!
 

For best results, I recommend PETG as material. Additionally, I recommend the following settings:

• perimeter: 3
• Nozzle: 0.4 mm
• Layer height: 0.2 mm
• Infill: 20% Archimedean Chords
• Solid top layers: 4
• Solid bottom layers: 6

The corresponding files end with “-v5”

Note:

Some users report that the cap breaks quickly (layer separation). To reduce this risk, here are a few tips:

• Print hotter (increases layer adhesion)
• Cut the silicone cartridge straight, specifically the entire beveled area, otherwise there will be high point loads
• Screw on without force. The seal is achieved by the nozzle resting on the inside of the cap. Tightening firmly offers no advantage

To further increase the sealing effect, a piece of cling film can be placed before screwing on

Happy printing and DIY!

Matching this is a smoothing stone for joints with a special trick, it's not entirely rectangular: 

Other prints for Home and Garden or for Tools by me

I thank Farbenzentrum Schlegel from Bad Schussenried for the support for this model.