Site Navigation

Your Account

Choose Language

Guide 1 - Acrylic Cementing

This guide has more recent changes. Switch to the latest unverified version.

  • Author: OpenROV
  • Time estimate: 2 hours
  • Difficulty: Moderate

We will introduce the usage of acrylic cement in this guide. This is a little tricky at first, but you will get a feel for it. Take your time to get good at this, as it will be more important in the future.

All of the acrylic pieces we use for OpenROV's structure and some of the other parts are clear. This is very hard to see in photographs so we've used a smoke-gray acrylic for the instructional.

Edit Step 1 Introduction  ¶ 

Image 1/1: You may have some acrylic pieces that have some debris from the laser cutting process in the holes. They should come out easily pushing them through.

Edit Step 1 Introduction  ¶ 

  • You will find the acrylic pieces you need in both the 6mm and 3mm bags of acrylic.

  • You may have some acrylic pieces that have some debris from the laser cutting process in the holes. They should come out easily pushing them through.

Edit Step 2  ¶ 

Image 1/1: A knife or your fingernails can be used to start removing the paper from a corner.

Edit Step 2  ¶ 

  • Before starting each section make sure to remove the paper backing from the pieces used only in that section.

  • A knife or your fingernails can be used to start removing the paper from a corner.

  • Use caution when using sharp tools.

1 Edit Step 3  ¶ 

Image 1/1: '''Before you start, watch this great video on [https://www.youtube.com/watch?v=hT6Ow_cBTps|how to use acrylic cement|new_window=true] from TAP Plastics.'''

1 Edit Step 3  ¶ 

  • The cement is solvent based, meaning it is not sticky but as it cures it bonds like materials.

  • Before you start, watch this great video on how to use acrylic cement from TAP Plastics.

    • The best way to apply cement is to hold the syringe bottle upright (tip at the top) and squeeze out a bunch of air, so when you turn the syringe bottle upside-down (and don't squeeze the bottle), air will burble inward and not allow cement to flow out. When you're ready to apply cement, lightly squeeze the bottle to overcome the vacuum pressure.

    • Only a little cement is required to make a good bond. Use the capillary effect to apply cement to a joint and have the cement work its own way into the space.

    • The acrylic cement does drip and should be done over a surface that can get dirty. Paper towels work well for this.

  • When working with acrylic cement it is recommended that you wear gloves, safety glasses, and work in a ventilated area.

Edit Step 4 Main Structure  ¶ 

Image 1/1:

Edit Step 4 Main Structure  ¶ 

  • |

Edit Step 5  ¶ 

Image 1/1: In order to increase the contrast in the pictures we will use smoke colored acrylic for this build. Your acrylic parts will all be clear.

Edit Step 5  ¶ 

  • Remove these pieces from the bags.

  • In order to increase the contrast in the pictures we will use smoke colored acrylic for this build. Your acrylic parts will all be clear.

Edit Step 6  ¶ 

Image 1/1:

Edit Step 6  ¶ 

  • |

Edit Step 7  ¶ 

Image 1/1:

Edit Step 7  ¶ 

  • |

Edit Step 8  ¶ 

Image 1/1:

Edit Step 8  ¶ 

  • |

Edit Step 9  ¶ 

Image 1/1:

Edit Step 9  ¶ 

  • Don't apply acrylic cement yet.

Edit Step 10  ¶ 

Image 1/1:

Edit Step 10  ¶ 

  • |

Edit Step 11  ¶ 

Image 1/1:

Edit Step 11  ¶ 

  • |

Edit Step 12  ¶ 

Image 1/1:

Edit Step 12  ¶ 

  • |

Edit Step 13  ¶ 

Image 1/1:

Edit Step 13  ¶ 

  • |

Edit Step 14  ¶ 

Image 1/1:

Edit Step 14  ¶ 

  • |

Edit Step 15  ¶ 

Image 1/1:

Edit Step 15  ¶ 

  • |

Edit Step 16  ¶ 

Image 1/1:

Edit Step 16  ¶ 

  • |

Edit Step 17 Camera Platform  ¶ 

Image 1/1:

Edit Step 17 Camera Platform  ¶ 

  • |

Edit Step 18  ¶ 

Image 1/1:

Edit Step 18  ¶ 

  • |

Edit Step 19  ¶ 

Image 1/1:

Edit Step 19  ¶ 

  • Make sure it is flush in both directions.

Edit Step 20  ¶ 

Image 1/1:

Edit Step 20  ¶ 

  • |

Edit Step 21  ¶ 

Image 1/1:

Edit Step 21  ¶ 

  • Make sure it is flush in both directions and at a right angle.

Edit Step 22  ¶ 

Image 1/1:

Edit Step 22  ¶ 

  • |

Edit Step 23 Electronics Chassis  ¶ 

Image 1/1:

Edit Step 23 Electronics Chassis  ¶ 

  • |

Edit Step 24  ¶ 

Image 1/1:

Edit Step 24  ¶ 

  • |

Edit Step 25  ¶ 

Image 1/1: The large opening is to the left.

Edit Step 25  ¶ 

  • The edge piece is pointing up.

  • The large opening is to the left.

Edit Step 26  ¶ 

Image 1/1:

Edit Step 26  ¶ 

  • |

Edit Step 27  ¶ 

Image 1/1:

Edit Step 27  ¶ 

  • |

Edit Step 28  ¶ 

Image 1/1:

Edit Step 28  ¶ 

  • This piece is on the same side as the semi-circle opening.

Edit Step 29  ¶ 

Image 1/1:

Edit Step 29  ¶ 

  • |

Edit Step 30 Front Battery Endcap  ¶ 

Image 1/1:

Edit Step 30 Front Battery Endcap  ¶ 

  • |

Edit Step 31  ¶ 

Image 1/1:

Edit Step 31  ¶ 

  • |

Edit Step 32  ¶ 

Image 1/1: Save these. You will need them later.

Edit Step 32  ¶ 

  • We are going to use the motor as a centering pin for the endcap.

  • Save these. You will need them later.

Edit Step 33  ¶ 

Image 1/1:

Edit Step 33  ¶ 

  • |

Edit Step 34  ¶ 

Image 1/1:

Edit Step 34  ¶ 

  • |

Edit Step 35  ¶ 

Image 1/1:

Edit Step 35  ¶ 

  • |

Edit Step 36  ¶ 

Image 1/1:

Edit Step 36  ¶ 

  • |

Edit Step 37  ¶ 

Image 1/1:

Edit Step 37  ¶ 

  • |

2 Edit Step 38  ¶ 

Image 1/1:

2 Edit Step 38  ¶ 

  • |

Edit Step 39  ¶ 

Image 1/1:

Edit Step 39  ¶ 

  • |

Edit Step 40 Topside Communication Box  ¶ 

Image 1/1:

Edit Step 40 Topside Communication Box  ¶ 

  • |

Edit Step 41  ¶ 

Image 1/1:

Edit Step 41  ¶ 

  • |

Edit Step 42  ¶ 

Image 1/1:

Edit Step 42  ¶ 

  • |

Edit Step 43  ¶ 

Image 1/1:

Edit Step 43  ¶ 

  • |

Edit Step 44  ¶ 

Image 1/1:

Edit Step 44  ¶ 

  • |

Edit Step 45  ¶ 

Image 1/1:

Edit Step 45  ¶ 

  • Do NOT glue these pieces together.

Edit Step 46 Continue Your Build  ¶ 

Image 1/1:

Edit Step 46 Continue Your Build  ¶ 

  • Continue your build by progressing to Guide 2.

You're Done!

6 Comments

How much acrylic cement is required for this entire project? 5oz? 10oz? 125ml? 250ml?

Tristen Harris - Reply

I don't have an exact number at this time but an offhand best guess is about 1-2oz (30-60ml) -Brian G.

OpenROV -

Just started making the ROV. Bought it over a month ago and have been busy.complete with part one. The acrylic can spilled when I popped the lid. Don't do this near your parts. So far....so good.

David Hunter - Reply

As this was my first use of acrylic cement, I was a bit puzzled by the "Cut This Out" direction on the unopened can of acrylic. Rather than attempt to cut the opening, I opted to puncture the lid with a philips screwdriver and then used the screwdriver to pry up the inner lid. I would then replace the inner lid and then the screw top to seal the can containing the unused cement.

GregM - Reply

We were using our OpenROV 2.8 for 2 months and we already broke 2 of the Front Battery Endcaps locks. How could we order new locks? We also have a 3D printer, could you send us a drawing of this element if possible as .stl file? Thanks

Teo Savov - Reply

Please email our support team at support@openrov.com and we can arrange for replacements. All of the CAD files can be found online. If you go to openrov.com and then click the "open source" tab it will bring you to the files. -Brian G.

OpenROV -

View Statistics:

Past 24 Hours: 18

Past 7 Days: 82

Past 30 Days: 333

All Time: 10,817