BigCooter 7" LCD Touch Display Monitor case

by BigCooter, published

BigCooter 7" LCD Touch Display Monitor case by BigCooter Mar 7, 2015
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UPDATED 28-JUNE-2015: added mounting system for Picatinny rail 20mm. Picatinny rail design uploaded here can be attached to openbeam 1515 extrusions, or anywhere the 4 mounting holes can be used. Note, there are numerous holes on the back of the main housing which can be tapped to M3 for adding your own custom mounting solutions and/or accessories.

This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/fLj95JFuSHw

More instructions, and links to purchase LCD display panel / electronics for under $50 at http://BigCooter.com/?p=1416

Case designed for low cost electronics:

7" AT070TN92 LCD (16:9 ratio)
HDMI+VGA+2AV LCD control board, LVDS, chipset RTD2660H
Touch Screen Panel (eGalax)

FDM print these parts flat side down, NO support material, 0.2mm layer height, 0.4mm nozzle and 15% infill. Part photos were made with low cost PLA materials. Circuit board mount screws are M3 x 6mm button head, case end screws are M3 x 12mm button head. Drill threaded holes to 2.5mm, tap or self thread with M3 ... M3 screw clearance holes can be drilled to anything between 3.0 and 3.3mm diameter.

4/11/2015: Added optional bezel spacer stl file, for use when not using touch screen digitizer panel (note: original LCD screen and touch digitizer screen bonded stack was 165.2 x 100.2 x 5.3mm). Also, reduced stiffness of switch plate buttons, should be easier to depress now.

This LCD panel seems to work well with OctoPi (OctoPrint) on a Raspberry PI 2, shown here running on Chromium browser in Kiosk mode. I had planned to use the touch panel with this Raspberry Pi 2, but the eGalax touch panel is NOT supported by the Raspbian RPi operating system, kernel / drivers must be rebuilt for this, I'm not a software nut, so I gave up trying ... anyone else up for the challenge of building a good Raspbian eGalax OctoPi image, please reply below!!!!

Until someone figures out an easy way to get the eGalax touch panel working, I suggest not including it .. the LCD kits are about $10 less without it ... I have included an optional spacer STL model for taking the place of the touch screen digitizer glass. I have found this display unit very useful for setting up and debugging Raspberry Pies, well worth the ~$40 it will cost to build without touch panel.

Note there are only cutouts in the lower housing for the HDMI, Power, and touch panel USB cord ... additional cutouts for VGA, audio, etc.. can be added by someone wanted to do a remix.

This is meant to be a multi-purpose design, that is why I placed many optional mounting holes on the backside of the lower housing ... drill to 2.5mm and tap or self thread M3 screws into those holes to attach your mounting bracket designs.


intentionally left blank, refer to Description Area.

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I have very similar screen at least the parts look identical and PC etc, but my screen is some mm larger and smaller on the sided. So I need original files to resize them. SLTs are not editable.

Can you pleaaaaaaaaase put up original files in whatever format they are. That would ease for others out there who has the same issues. Thanks!

Ohh, never mind. I just saw it on Tinkercad. I had to resize it though to fit my screen. Still printing...

Comments deleted.

Great works! Congratulations!

Hi. Love the design. I use Tinker Cad all the time and know how difficult it is to create a complex design like this. Congrats.

I am using the exact same LCD screen, which is 166mmx100mm and I see that's how you designed the top of the case but when I print it on my RepRap printer (Prusai3) it prints only 163mmx98mm. Any idea why it would get scaled down? I'm using Reptier and Sic3r to print the parts.

i remixed your design to accommodate the thicker display i am using and i added posts to hold the adafruit touch panel driver

Noticed on your companion site that you were having issues with getting the LCD to interface with the RPi. You no longer need to recompile the kernel to interface. I got my screen working using the following write-up (shamelessly stole from an amazon review):


adafruit makes a touch panel driver board that uses half the space that the egalax one does. and its recognized as a regular mouse. so no drivers are needed. its 10 bucks and works like a charm. im printing out your design (standing up, diagonal, and split in two) as i type this. hopefully the print will be successful. i like the idea of finally having my touchscreen in an enclosure and not dangling about.

did you split and orient on end to fit on a small print bed? ... my design intent was to print in the orientation as displayed here for the STL files, using a standard 200x200mm bed, Thanks for the tip on the adafruit touvh panel .. I would like to get the touch function working on mine with a Raspberry Pi 2.

the print is going okay so far. i just dont understand the shim. i guess its supposed to be there for people who arent using the touchscreen. but i want to use the touchscreen but there isnt enough room in the case for it. maybe the screen he uses is thinner than the tonetec style. but im gonna be dremeling out an 1/8th of an inch of material if i want to fit my touchscreen in here.

The display & touch screen (with adhesive) had a total thickness of 5.3mm (165.2 x 100.2mm), the case was designed for this. When I removed the touch screen (which was 1.5 to 1.6mm thick), I substituted the spacer shim included in the STL models here.

my display and panel come in at 7.3 mm

i ordered the 40 pin only to find out its the 50 pin, 40 does not work


I'm currently building one for one of my spare Tontec screen.
My only problem is I can't find any 40pin extension cable to connect the control board to the screen.

Do you have any link where I could get one?


Try keyword searches at Ebay or elsewhere for "FFC FPC 40-pin" for the cable... and add words like "extension connector" to locate an appropriate connector to extend your cable. I saw what you need on ebay with those keywords.

Cool!! found it!!