Decade Power Resistor Box using 10 positions thumbwheel or push wheels. The Resistors used are rated at 2 Watts with 1% tolerance. The range is from 1 Ohm to 10 M Ohms with a resolution of 1 Ohm.

It is a two part design, main body and base plate. The body is printed with support, please see the slicer image above regarding the placement of the object.

The schematic is simple and can be referenced at Elliott's project page at

https://sound-au.com/project209.htm

Print Settings

Printer Brand:

Creality

Printer: 

Ender 3

Rafts:

No

Supports: 

Yes

Resolution:

0.4mm

Infill: 

20%

Filament: Various brand PETG PETG White and Orange

Notes:

Printed at 230 C nozzle and 70 C bed temperature. Overall print time was under 7 hours and used 67 gms of material.

Post-Printing =============

Remove the support and sand the rough edges. Install the thumbwheel switch and terminal posts, solder the connections and the Decade resistor box is ready to use.

Category: DIY