> ## Documentation Index
> Fetch the complete documentation index at: https://docs.researchanddesire.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Suction Cup Bracket

> Mount heavy‑duty suction cups to 4040 aluminum extrusion for a stable, removable attachment point.

<Frame>
  <img src="https://mintcdn.com/researchanddesire/LuUTnWrXlgIS5YfY/ossm/Hardware/ossm-mods/salad-dressing/_images/2cec80b4-ff7e-49bd-a90f-72971c7b3c5a.webp?fit=max&auto=format&n=LuUTnWrXlgIS5YfY&q=85&s=46ec04345470bd55c4e60730d51eeb5c" alt="Suction Cup Bracket mounted on 4040 extrusion" width="1702" height="1693" data-path="ossm/Hardware/ossm-mods/salad-dressing/_images/2cec80b4-ff7e-49bd-a90f-72971c7b3c5a.webp" />
</Frame>

This bracket lets you attach heavy‑duty suction cups to 4040 aluminum extrusion, creating a solid, repositionable mounting point on smooth, non‑porous surfaces.

## Features

* Strong, temporary hold on smooth, non‑porous surfaces (glass, sealed metal, glazed tile)
* Maintains extrusion‑mount stability when properly installed
* Compatible with 4040 aluminum extrusion; validated with Type I profile
* Installs in minutes using basic hand tools

<Tip>
  For maximum stability on an extrusion‑based stand, use four suction cups distributed across your mount.
</Tip>

## Compatibility

* Extrusion: 4040 aluminum extrusion (Type I profile recommended)
* Suction cup: 1/4‑20 threaded stud or 1/4‑20 female insert
* Hardware interface: 1/4‑20 fastener for the cup; M6 T‑nuts/bolts for typical 4040 extrusion slots

<Info>
  The bracket mounts to your existing extrusion hardware. If you need spares, keep two M6 T‑nuts and two M6×12 (or similar) bolts on hand for each bracket.
</Info>

## Bill of materials

You need the following parts for each bracket:

| Part                                         | Quantity | Notes                                                        |
| -------------------------------------------- | -------: | ------------------------------------------------------------ |
| Heavy‑duty suction cup with 1/4‑20 interface |        1 | Stud or female insert, rated for smooth, non‑porous surfaces |
| 1/4‑20 × 5/8" screw                          |        1 | Button or hex head; use with threadlocker if desired         |
| M6 T‑nut (for 4040 extrusion)                |        2 | Optional if you don’t already have spares                    |
| M6×12 bolt                                   |        2 | Optional; matches the T‑nuts above                           |

<Warning>
  Suction cups can release unexpectedly if the surface is dirty, textured, or if temperature/humidity changes occur. Do not use for overhead loads or in situations where unexpected release could cause injury or damage.
</Warning>

## Installation

<Steps>
  <Step title="Prepare the surface and parts">
    * Clean the target surface with isopropyl alcohol and a lint‑free cloth; let it dry.
    * Inspect the suction cup for nicks or debris on the sealing lip.
    * Gather: bracket, suction cup, 1/4‑20 × 5/8" screw, two M6 T‑nuts, two M6×12 bolts, hex keys.

    <Check>
      The surface should be smooth, dry, and free of dust or oils.
    </Check>
  </Step>

  <Step title="Attach the suction cup to the bracket">
    * Insert the 1/4‑20 screw through the bracket and into the suction cup’s threaded interface.
    * Tighten until snug (finger‑tight plus a quarter‑turn). Avoid over‑tightening which can deform the cup mount.
  </Step>

  <Step title="Mount the bracket to the extrusion">
    * Slide two M6 T‑nuts into the 4040 extrusion slot.
    * Align the bracket holes with the T‑nuts and install the M6×12 bolts.
    * Tighten evenly until the bracket is secure and cannot slide.
  </Step>

  <Step title="Set the suction cup and verify hold">
    * Lightly moisten the cup’s rim (water only, no oils), press firmly against the surface, and engage the cup’s lever (if present).
    * Perform a firm pull test to confirm a solid seal.

    <Check>
      After 5 minutes, re‑check for any movement or loss of vacuum. Re‑seat if needed.
    </Check>
  </Step>
</Steps>

## Best practices

* Place cups on flat, non‑textured, non‑porous surfaces only
* Distribute multiple cups to spread load and reduce peel forces
* Re‑seat cups if they have been loaded continuously for a long period
* Use medium‑strength threadlocker on the 1/4‑20 screw if you see loosening from vibration

<Tabs>
  <Tab title="Glass">
    - Ensure the glass is tempered/thick enough for expected forces
    - Avoid mounting near edges where peel forces are highest
  </Tab>

  <Tab title="Metal or tile">
    * Remove waxes/polishes; they can cause slow leaks
    * On tile, avoid grout lines and textures
  </Tab>

  <Tab title="Sealed wood or laminate">
    * Verify the finish is smooth and fully cured
    * Test adhesion in an inconspicuous spot first
  </Tab>
</Tabs>

## Troubleshooting

<AccordionGroup>
  <Accordion title="Cup won’t stick or releases quickly">
    * Clean both the surface and cup rim thoroughly
    * Try a different surface; micro‑texture or matte coatings reduce adhesion
    * Lightly moisten the rim with water and re‑seat with firm pressure
  </Accordion>

  <Accordion title="Bracket slides in the extrusion slot">
    * Confirm you are using the correct T‑nuts for 4040
    * Tighten both bolts evenly; add a star washer if needed for extra bite
  </Accordion>

  <Accordion title="Fastener loosening from vibration">
    * Apply medium threadlocker to the 1/4‑20 screw and M6 bolts
    * Re‑check tightness at the start of each session
  </Accordion>
</AccordionGroup>

## Printed parts and CAD files

| Part                                   | Files                                                                                                                                                                                                                                                                                                                                                                                   |
| -------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Suction Cup Bracket (4040 Aluxprofile) | [STEP](https://github.com/KinkyMakers/OSSM-hardware/blob/main/Printed%20Parts/OSSM%20Mods/SaladDressing%27s%20Mods/Suction%20Cup%20Bracket/SuctionCupBracket%20-%204040%20Aluxprofile.step) / [STL](https://github.com/KinkyMakers/OSSM-hardware/blob/main/Printed%20Parts/OSSM%20Mods/SaladDressing%27s%20Mods/Suction%20Cup%20Bracket/SuctionCupBracket%20-%204040%20Aluxprofile.stl) |
| Suction Cup Bracket (3030, by @neos)   | [STEP](https://github.com/KinkyMakers/OSSM-hardware/blob/main/Printed%20Parts/OSSM%20Mods/SaladDressing%27s%20Mods/Suction%20Cup%20Bracket/SuctionCupBracket%20-%203030%20Amazon%20by%20neos.step)                                                                                                                                                                                      |

## Related

<CardGroup cols={2}>
  <Card title="OSSM Mounting" icon="wrench" href="/open-source-sex-machine/ossm-mounting">
    Overview of extrusion and basic mounts for OSSM.
  </Card>

  <Card title="OSSM Extrusion Mount" icon="layers" href="/open-source-sex-machine/ossm-mounting/ossm-extrusion-mount">
    Bill of materials and hardware used across our extrusion‑based mounts.
  </Card>
</CardGroup>

<Info>
  Looking for community tips and real‑world mounting examples? Join our Kinky Makers Discord.

  <DiscordInvite community="kinky-makers" />
</Info>