A Holistic Design Tool for Creating, Communicating and Manufacturing Advanced Human-Scale Forms for Design Pioneers and Producers

Public Chat
Similar projects worth following
Geometer is a new design tool and form language mediating between the physical and digital world.
It is made to be understandable, communicable and dynamic.
-No black box, encouraging active participation and goal oriented design.
-Components open a channel for dialogue around relationships and patterns.
-Built-in system that encourages strength and freedom of form without compromise.

There are three components to this project:
(1) A kit of robust physical and digital components with unique names and specific geometry which can be combined in a modular fashion.
(2) A system of communicating the interactions of these components.
(3) A way to easily physically manufacture complex assemblies made up of modules, in a variety of materials reliably of considerable size.

We hope that this will be an efficient and approachable design to build process for all.

This project was part of an Industrial Design Capstone (Senior) Project through Jefferson University, East Falls Campus in Philadelphia, Pennsylvania. Progress is ongoing.

Generated using Grasshopper and Rhino 3D:

Using open ended molds based on these reference modules, complex assemblies can be easily communicated, understood and manufactured.

Licensed under CERN OHL v.1.2 or later

Creative Commons LicenseGeometer by David Troetschel is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Permissions beyond the scope of this license may be available at

Open Source Hardware Association Certification

Grasshopper Module Files Set

Specific grasshopper files for each module.

x-zip-compressed - 652.22 kB - 12/26/2019 at 23:24


Final Presentation (3).pdf

Delivered on 4/29/19 PDF version of powerpoint with guiding annotations.

Adobe Portable Document Format - 6.58 MB - 05/02/2019 at 18:11


Set 7 Filleted

Set 7 Filleted References

x-zip-compressed - 14.40 MB - 04/29/2019 at 14:23


Set 7 Supporting

Set 7 Supporting Documentation with updated license

x-zip-compressed - 10.79 MB - 04/29/2019 at 03:00


Set 7

Set 7 Mold files

x-zip-compressed - 5.25 MB - 04/29/2019 at 02:00


View all 22 files

  • Mentor Session

    David Troetschel05/17/2019 at 15:39 0 comments

    Since Geometer is participating in the Hackaday Prize I had the opportunity to present my work and get some feedback on potential directions. See a recording;

  • Senior Show Posters

    David Troetschel05/02/2019 at 21:48 0 comments

    And the actual posters:

  • Final presentation

    David Troetschel05/02/2019 at 18:44 0 comments

    On the 29th we completed our final (at school) capstone presentation.

    Our powerpoint with annotations, is available in the downloads section.

    A video recording is on youtube:

    A higher quality version may follow.

  • Open Source Hardware Association Certification

    David Troetschel05/02/2019 at 17:57 0 comments

    We're officially certified now!

    What a journey!

    Set seven is the current release, let us know if you make anything cool or have questions!

  • Final presentation

    David Troetschel04/29/2019 at 15:25 0 comments

    Things have been crazy the last couple weeks since we've been preparing for our final senior presentation. Most of our time has been writing a cohesive narrative and figuring out things like financial simulations and build examples.

    After we are done with everything we will do a time warp in the following days and update our project log.

    Set 7 is live!

    Set 7 is alive and well, stable modules in many formats ready to use! Share what you make!

    Files may get sporadic updates and formatting in the next twenty-four hours or so. Licenses have been applied and registration for the OSHWA is pending!

    Of particular note are our example business model in the set 7 module directory and spreadsheet. One interesting estimation is that for a half million investment up to six million dollars profit can be made with a huge margin for safety if this system is adopted.

    Final presentations, with hopefully a video and audio will also be available.

    All set 7 modules rendered:

    Mold to fabrication:

  • Renderings

    David Troetschel04/09/2019 at 19:06 0 comments

    Some renderings were made to further explore some preliminary designs:

  • Solidworks form finding

    David Troetschel04/08/2019 at 14:45 0 comments

    Mates definitely help speed up the digital form finding process.

    An example of a wall light and then its transformation into a desktop model.

    And then using the same structure to inspire a table, initially too small but slowly growing to have correct proportions.

    There are overlaps and several gaps which presents us with a unique opportunity. We can make a small insert module to take up these 1/4-.5" gaps and such or we can follow along with the natural troubleshooting method of our modules by inserting more modules and expanding dimensions until things line up correctly. Fortunately we can more or less cut and past and reorganize until things work but its definitely an interesting design process. You have an intention and find a module which will approximate it but due to its constraints it naturally guides the form into a specific form factor or increment thereof.

  • More snap together modules

    David Troetschel04/04/2019 at 17:20 0 comments

    We still don't have one of each module since we added a few recently; expect file updates soon as fillets and molds are completed.

    Interacting with the snap together modules is enjoyable though and we are quickly troubleshooting small problems:

    Solidworks is interesting since the mate tool helps line up modules very quickly.

    We also started a new bag of mycelium today to be ready for the final presentations.

    Our older bag is looking a little funky now considering its been three weeks or so.

    Kinda scary looking haha. So, we really need to stop wasting material and move it to molds or something.

  • Solidworks Form Finding

    David Troetschel04/03/2019 at 15:42 0 comments

    Using the mate tool in Solidworks assembly is very fast for form finding, although it is a little annoying to undo a mate if you change your mind often. A quick start file will be created for those with Solidworks 2017 or higher once module files are finalized. 

    We still haven't gotten to try out Mindesk for Solidworks since we do not have Solidworks 2019.

    The above assembly took less than five minutes to put together.

  • Snap together form finding

    David Troetschel04/03/2019 at 15:06 0 comments

    We have been printing more physical half scale modules that snap together to ease the design process.

    We are starting to notice an error in alignment, when trying to close angled sections it seems that the modules are too long, but to create parallel structures we need to standard length. Playing around with it some more we decided to add a shortened piece as a bridge for these angle errors.

    Some other modules were developed to allow for easier execution of symmetrical structures and for making leg terminators. These are modules L-Q being printed today to add. There is also a short terminator for single leg ending. as needed in the below example.

    We are debating adding graphics to communicate the module name and leg numbers as well as a sort of indexing system to determine angle between modules. Either this could be a saw tooth mate at fifteen degree increments or it could just be two graphical indicators.

    With this modification you would be able to express ex.: A2-15-C3 when module A, arm 2 connects to module C arm 3 at 15 degrees clockwise from aligning marks. The argument becomes whether hydro-graphics or pad printing would make sense, embossing.... etc. How to print on such a structure? How much information and precision is needed?

    To add to the complexity, these are half scale modules so the above "Desk" would be very small in fact; how do we develop a sense of scale? A half scale person model is out of the question, far too big. Yet the dilemma is that we also can't make the snap together modules 1:1 scale due to costs associated...

    Definitely a challenge. This is where VR really helps out, its unfortunate its such a fringe practice.

    Nearly all mold designs are done now so we are getting ready to send them out for a quote for production elsewhere due to time constraints. At this point we need to just start designing things and then move to production in time for our final presentations.

View all 45 project logs

Enjoy this project?



Similar Projects

Does this project spark your interest?

Become a member to follow this project and never miss any updates