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    ![image|548×493, 50%]

    **Stage:** Prototype
    **Disability Type:** Visual, Mobility / Physical, Cognitive / Learning
    **Difficulty:** Intermediate
    **Capabilities Needed:** Soldering, 3D Printing
    **Time to Complete:** 1-4hr
    **Material Cost:** $11 – $25
    **Usage:** Environmental Controls (EC), Computer Access, Communications Aids (AAC), Cognition and Learning Disabilities, Recreation and Leisure
    **License:** Creative Commons Attribution 4.0 International

    The Interact Switch is a high quality, modular 3D printable switch design.
    The tactile feel of the switch is on par with commercial switches, coming in at about 35 g of activation force across the surface of the switch. The base has the same footprint as a Jellybean switch, and should work with any Jellybean switch mounts.

    There is a wide array of different designs: from a simple flat button, to textured designs, to a dome, and even some wobble switch variants.

    The switch base incorporates 6 slots that are ideal for a variety of mounting options, including using VELCRO straps

    MMC Website Project Listing:


    Maker Feeback from @leungkam on a recent build:

    So I delivered the 2 switches and here are a few things that maybe some future makers could consider when making it.

    * The switch that was proposed on BOM is small and fits nicely in the STL file provided. However, keep in mind that this specific switch usually has a very long lead time (in my case there was a back order + a usual lead time of 28 weeks).
    * There is [another switch]( that can be obtained fairly quickly but the latter would add a slight overall height/ thickness of the switch. If a maker were to use it, the maker would have to ensure that during 3D printed part would have a slight added height and depth in the 2 components that are printed.
    * Regarding the 3 legged part under the cap, it dictates how sturdy/loose the click is. You can check if the requested item needs to be more sturdy (seen as the orange button in my video) or looser (seen with the green button). Gluing one of the legs when putting them under the cap will help with that.


    I tried to print the button caps face down and found that you don’t need any support and can speed up the print.

    I started to edit the STL to deboss the design instead of embossing it. I think it looks good enough.

    Smiley interact switch button
    Smiley interact switch button

    I think only the design with thin lines work with this printing method, so I modified the following:
    – ButtonCap_Dots_Circles.STL

    – ButtonCap_Rings.STL

    – ButtonCap_Lines.STL

    – ButtonCap_Smile.STL


    Have there been any newer versions of this assistive switch that offer it in a larger size? The Jelly Big Red switch that AbleNet offers is 5 in. in diameter for a larger targeting surface. Are there any versions of the interact switch that are closer to this size or larger? If not, I have a volunteer who is interested in creating this same style switch in multiple sizes.


    the original design includes solidwork files

    if you have solidworks, it might be easy to scale them

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