Cryptube

This tube cover secures your mnemonic phrase. You can insert 4 characters of each word onto the steel washers.

Note

This tube cover is plastic and therefore is not resistant to heat or fire. Because of this, we are inserting several steel parts into the model.

If you want to secure the cap of the model, you have to drill in a bottle cap hole with 6mm (for 10mm model) or 4mm (for 8mm model).

Bill of material

10mm model

• ~3.48m ABS filament
• 1× Screw 6.0x120mm
• 2× 14x10mm Pressure Washer O-Ring D1/48
• 1× nut with collar 6mm
• 2× or 1× 6mm locking or security nut
• 1× 6mm cap nut (or locking, or security)
• 1× 30mm keyring
• 1× phone ring strap
• 1× NFC sticker
• for words: 10.5mm × 20mm × 1mm screw washer (Preferably stainless steel. In the worst-case scenario, if there is no stainless steel available, the washer can be printed as well.)

10mm decomposable model

• ~3.48m ABS filament
• 1× Screw 6.0x120mm
• 1× 14x10mm Pressure Washer O-Ring D1/48
• 1× nut with collar 6mm or security nut
• 1× 30mm keyring
• 1× phone ring strap
• 1× NFC sticker
• for words: 10.5mm × 20mm × 1mm screw washer (Preferably stainless steel. In the worst-case scenario, if there is no stainless steel available, the washer can be printed as well.)

8mm model

• ~3.24m ABS filament
• 1× 4mm stainless steel screw rod bar
• 1× 4x8mm Pressure Washer O-Ring
• 3× stainless steel 4mm locking or security nut
• 1× 30mm keyring
• 1× phone ring strap
• 1× NFC sticker
• for words: 8.5mm × 20mm × 1mm screw washer (Preferably stainless steel. In the worst-case scenario, if there is no stainless steel available, the washer can be printed as well.)

All models

• 1× plastic bottle cap
• Letter (and number) steel stamp
• Hammer