Sonoff Touch Frame (Customizable) by geit_de

Last crawled date: 3 years ago

This is my own approach of getting a proper Sonoff Touch frame.
I know there are several very nice frame versions on Thingiverse, but they all are very limited. Basically you get what you see and not what you probably need, when it comes to reusing your switches or power sockets.
However I started making a simple 2mm frame and somehow ended up with a fully featured spreadsheet editable Sonoff Touch Frame construction kit.
By tweaking values in the spreadsheet of the FreeCAD object source file, you can get all the looks included in this archive with any combination of powersocket, switch or connector.
There are some designs available on Thingiverse which style you can reproduce by using this customizable file:
https://www.thingiverse.com/thing:2829881https://www.thingiverse.com/thing:2747188https://www.thingiverse.com/thing:2781919
IMPORTANT: To edit the source file you need FreeCAD V0.17.13509 or later versions or you will break the file when loading/editing.
Also please consider this a work in progress. I am not pleased with several names I gave the values in the spreadsheet and I will probably add more options in the future.
So, if you don´t find the proper frame version included, fire up FreeCAD and edit the file yourself. Don´t panic. It is far less work and less complicated than designing a flexible part likes this in FreeCAD.
First load in the SonoffTouchFrame.fcstd file. Now double click on the spreadsheet shown in the list on the left side. You may need to press the little triangle to see it.
Now you should see a huge sheet. Go to "window" menu and select "arrange windows". You should end up with the part and the spreadsheet side by side.
Now comes the fun part.
Depending on the Sonoff Touch you want to create a frame for, go into the first lines showing "Sonoff T1" "Sonoff Touch EU" and so on. Only the first one having a "1" will be used. So, if you want to create the US version, enter 0 behind the "Touch EU" and 1 behind the "Touch US" to switch the proper sizes. You should see the part changing once you leave the numeric input field.
Next is the framing. Thickness, filet and corner filet can be edited right now. The part in the preview window will update after each change. Make sure not to add a bigger filets than the actually smallest frame size.
Now it is time to define the sizes for the hole, cover and metal plate. Currently three types of cover plates are predefined. Those are probably only useful for the EU region, as I used EU power plates as base.
There is a Square51 (51mm x 51mm), Square70 (70 mm x 70 mm) and Rectangle65 (65mm x 54 mm ) version predefined defined.
The specific values are in the sheet below. If you want to change measurements you should take your devices cover, measure it and enter the values into the active device type group.
I suggest to play with all the values and once you understand how it works, you restart with the original file. Really, it is not that hard and you cannot break anything. If you get errors, which are indicated by vanishing objects and/or a red exclamation mark at the entries in list, you probably created some negative length. Like defining the Secondary Size 70, but the Cover Height as 80.
Another problem is when filet couldn´t done because of the size of the frame.
To create a Sonoff Touch frame without any power socket or switch frame part, simply select SonoffTouchPocket from the list in the main window and hit the space key. Now disable the "Secondary Size" by entering 0 and increase the bottom frame size to match your needs.
To save an object file for 3d printing make sure the last entry in the list is active. The little image must be coloured. Hit the space key to toggle its state. Now mark the last entry in list and select "File->Export" from menu. Now select "alias mesh .obj" as file type below the file list. Type in a proper name and save. Saving the frame only version works in the same way. Just only activate and select SonoffFramePad before exporting using the space key.
Happy Printing.
ADDITIONAL NOTES:
As you may have noticed there are some fields marked as best guess. This is because I don´t have any UK or US switches, so I don´t know if these values are different or not. The Sonoff Touch width and height were taken from the vendor webpage, but there is no information on the depth once mounted. The EU version is here 9 mm.
All numeric values which are centred, are free to edit. Values which are right aligned should not be changed. In many cases you cannot even change them, because there is a formula in the background calculating them.
LEGAL NOTE:
I know this file will be used in the future by some ebay trash to make cheap money using my designs. Please to not support those "services", as they hurt the 3d printing community. Better ask a friend or take the files to a local print store or library to get a print.
This is not a remix, even if the design looks like some other files on Thingiverse. A remix would never come with spreadsheet features and small source files.