More downloads will follow, but most of it is ‘work in progress’, so still changing.

Universal radio panel and Arduino radio panel backplane shield PCB design

Click on the picture to go to the download page


3D model and STL files for 3D printed MCP disengage cap

Click on the picture below to go to the download page.

Sketchup 3D MIP design

3D work in progress design of my 737 NG MIP, built with 12 and 9 mm MDF and 44 x 44 mm wooden beams. Click on the picture below to download.

1 1/2 seat because of space reasons, first officer seat misses the rightmost part.
Feel free to modify it to 1 seat or full 2 seat and share the modified design.
Design may not be sold.

Sketchup 3D pedestal design



3D work in progress design of my 737 NG pedestal, built with 12 mm MDF (left over from the MIP) and 27 x 27 mm wooden beams. Click on the picture below to download.

Feel free to modify and share.
Design may not be sold.

Throttle Quadrant labels


Throttle Quadrant labels as found on, converted to SVG format in Inkscape, texts converted to paths to avoid font problems. Version using fonts.

Flaps guide design


Alu flaps guide design SVG and DXF

Flaps optical encoder wheel

Flaps optical encoder wheel design SVG and DXF

Flaps handle

Flaps handle mechanism design SVG and DXF.
Using pieces of adhesive furniture felt from the Action shop for smooth sliding.
At the photographs the top of the fixed part of the handle has an extra 2mm plate because the distance between handle and aluminum guide was a bit too large. The design in the SVG and DXF files has been updated (bent sliding part 2 mm shorter so that the handle comes 2 mm closer to the aluminum guide) so that the extra plate is not needed anymore.

TQ panel 3

TQ panel 3 design SVG and DXF

TQ panel 4

TQ panel 4 design SVG and DXF

TQ panel 5

TQ panel 5 design SVG and DXF

Knob cutouts design

Knob dimensions and pockets for thrust handle, reverser and fuel cutoff in SVG format. Fit on 737 knob set from


Knobs for flaps and speedbrake handle in SVG format

Stab trim indicator linkage model


Linkage mechanical link simulation model for stab trim indicator construction

Potmeter gear design


Potmeter gear design (32 T, modulus 1, matches with electromagnetic clutch ) in SVG, DXF and Estlcam format. G-code (single flute 1 mm end mill bit) D-shaft center hole and gear outline.
Sketchup 2016 3D source design 3 mm thick, Sketchup 2016 3D source design 5 mm thick, STL format 3 mm thick, STL format 5 mm thick for 3D printing.
The supplier where I purchased the original clutch unfortunately doesn’t sell it anymore, but I have found this possible replacement that has the same axis hole, gear diameter and number of teeth. It is a bit less deep and somewhat less Nm, but I expect it must be strong enough to replace the ones that I used.

Autothrottle solenoid MCP switch


Preliminary Nextion and TJC HMI files used for the electrical panel

Below the HMI files can be downloaded for both the International and Chinese TJC variant of the 2.8 inch Nextion touchscreen as described in the looking forward: Nextion HMI electrical panel post.

Dual encoder switch

Design files page

Garmin GNS 530 GPS flightsim panel

Design files page

Other projects: cheap Bluetooth keypad based DIY page turner pedals

A small, unrelated CNC project for the summertime when there is less time for cockpit building, but I needed a place where the design can be downloaded.
Mechanical construction of two pedals that use a cheap Bluetooth wireless keypad to turn music score pages in the IOS app PiaScore.

Instruction video: