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Benchy

Benchy  image 1

Injection Profile

• Mold Fabrication: 3D Printing, PETG, about 330g, about 9h
• Injection Materials: 0A-5A PVC
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Released 9/1/2025

Description

Benchy Mold Injection Instructions

FDM Slicing Settings

  • Material: PETG/PC
  • Nozzle Diameter: 0.4 mm
  • Wall Thickness: 8 layers (≈3.2 mm, high compressive strength, resistant to multiple injections)
  • Top Layer Thickness: 3 mm
  • Bottom Layer Thickness: 2 mm
  • Infill Density: 25% (balance between strength and material saving)
  • Infill Pattern: Recommended Grid
  • Layer Height: 0.2 mm

Preparation Materials

  1. 0-hardness PVC stock solution
  2. PVC special color paste (yellow, milky white)
  3. Release agent (recommended: PTFE-based release agent; edible oil can also be used, but the release effect is not as good)
  4. Fast-drying PVC soft glue adhesive
  5. 3D printed mold
  6. SALTGATOR injection molding machine

Injection Molding Steps

  1. Evenly spray release agent (release oil) on the mold surface.
  2. Assemble the mold according to the exploded view.
<img src="https://vzyklpazwxemgkrpkblc.supabase.co/storage/v1/object/public/mold-images/1756723038431-y19fcj.PNG" alt="Benchy" width="400" /> <font color=#DCDCDC>" <img src="https://vzyklpazwxemgkrpkblc.supabase.co/storage/v1/object/public/mold-images/1756723046100-zmxtp5.PNG" alt="Benchy" width="400" /> <font color=#DCDCDC>" <img src="https://vzyklpazwxemgkrpkblc.supabase.co/storage/v1/object/public/mold-images/1756723051551-7xgt2.PNG" alt="Benchy" width="400" /> <font color=#DCDCDC>"
  1. Add an appropriate amount of PVC stock solution and PVC special color paste into the injection machine, set to 170℃, and start heating.
  2. After heating is completed, use the injection machine to inject material into the mold's injection port (push the plunger until it cannot be pushed further and hold for 3-5 seconds to remove larger bubbles).
  3. After injection, wait 6-8 minutes to allow the PVC soft gel to cool.
  4. Once cooled, first pull out each core pin and open the mold, then demold. During demolding, slowly separate the soft gel from the mold to avoid damaging the model by excessive force.
  5. Remove flash and excess soft gel formed at the vent and injection port.
  6. Use quick-drying PVC soft glue to stick the steering wheel to the corresponding position of the cockpit, wait for 10-15s curing and then stick the cockpit to the corresponding position of the main body of the boat, and then wait for another 10-15s after the curing is completed, you will get a complete PVC soft glue boat. (In order to facilitate the positioning, the cockpit and the main body of the boat have corresponding grooves for positioning)

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