Vacuum Bagging Carbon - V1 - Enclosed Bagging

Proven

Goal

To create a simple, low-cost vacuum environment for small parts using the manual pump and storage bags from the vacuum bagging kit.

Specifications / Dimensions

• Suitable for small to medium parts that fit inside standard vacuum storage bags
• Maximum part size: limited to the largest bag available
• Pressure achievable: approximately -0.2 to -0.4 bar with a manual pump
• Requires a flat, rigid base (e.g. acrylic sheet) to support the part

Reference Images

Time needed

Type	Hours
Implementation	0.25 h
Waiting	0 h

Bill of Materials

Material	Quantity	Unit Cost	Line Cost
Vacuum Bagging Kit Reusable Heavy-duty storage bag plus compatible hand pump	1 kit	£9.00 per kit	£9.00
Breather Cloth Consumable Wraps part to distribute airflow	0.5 m (1 m wide)	£12.00 per 5 m pack (1 m wide)	£1.20
Total			£10.20

Tools Required

Tool	Purpose
Metal file	Smooth cut edges and remove burrs
Scissors	Cut materials like fabric, film, or templates to size

Instructions (step-by-step)

1. Smooth the edges of the base or part using the file to prevent puncturing the vacuum bag.
2. Place breather cloth around the part to allow airflow inside the bag.
3. Add an extra layer of breather cloth directly under the vacuum pump connector since this point receives the highest pressure.
4. Place the entire setup into the vacuum bag.
5. Seal the bag securely according to the supplier’s instructions.
6. Use the manual pump to create a vacuum. Stop when the base begins to bend slightly, ensuring enough pressure without risking deformation.
7. Check the bag after 10 minutes. If the vacuum is lost, the bag may be perforated. Replace the bag and restart the process.

Limitations

• Requires a solid base that can be lifted and inserted into the bag
• Enclosed vacuum bagging limits the maximum part size to the bag dimensions
• If the angled part of the acrylic base bends too much under vacuum, the resulting blade might not fit into the foot pocket