HOWTO powering rotating parts with abrasive contacts - Schleifkontakte

For a lamp in which an axis should rotate, I was looking for a way to transfer voltage to the rotating axis. So I developed the option shown here.
In the hardware store I bought copper connectors with an inner diameter of 15mm for pipes and cut 10mm long pieces here. Slightly sanded the edges and soldered a wire.
One of the rings is placed on the axle from below. The wire is guided upwards inside the axis. The other piece is put on from above. To fix the rings, I heated the ends of the axles a little and deformed the plastic material so that the rings could not come off again.
The axis is guided in a part that contains the motor for driving. I have provided sliding contacts on the side. In this way, the axis can be supplied with electricity via the carbon brushes.
I use the carbon brushes in the wrong orientation, but this keeps the construction as flat as possible.

I use this parts:
2x screw M3x20 (securing and contacting the carbon brushes)
4x M3 nuts (2x motor and 2 for carbon brushes)
1x Motor
2x carbon brushes
2x pices of cupper pipe with inner diameter of 15mm and 10mm length

Sharplace Profi DC 3V-12V Mini Getriebemotor Geschwindigkeit REDUKTION MOTOR 12 bis 48rpm
von RT Technology
Erfahren Sie mehr: https://www.amazon.de/dp/B07DWLMPZ7/ref=cm\_sw\_em\_r\_mt\_dp\_U\_snTiEbG3FNE21

10x Kohlebürsten Motorbürsten Motorkohle Kohlen Schleifkohle 6mm x 13mm x 16mm
Mainly used in Makita power tool: LS1030N 4107R 5016B N5900B LS1040 LS1045.
https://www.ebay.de/itm/10x-Kohlebursten-Motorbursten-Motorkohle-Kohlen-Schleifkohle-6mm-x-13mm-x-16mm/153264599571?hash=item23af483213:g:N3oAAOSwhJtd53qw

Print instructions

Unassociated tags: power transmission

Category: Electronics Summary

For a lamp in which an axis should rotate, I was looking for a way to transfer voltage to the rotating axis. So I developed the option shown here.
In the hardware store I bought copper connectors with an inner diameter of 15mm for pipes and cut 10mm long pieces here. Slightly sanded the edges and soldered a wire.
One of the rings is placed on the axle from below. The wire is guided upwards inside the axis. The other piece is put on from above. To fix the rings, I heated the ends of the axles a little and deformed the plastic material so that the rings could not come off again.
The axis is guided in a part that contains the motor for driving. I have provided sliding contacts on the side. In this way, the axis can be supplied with electricity via the carbon brushes.
I use the carbon brushes in the wrong orientation, but this keeps the construction as flat as possible.

I use this parts:
2x screw M3x20 (securing and contacting the carbon brushes)
4x M3 nuts (2x motor and 2 for carbon brushes)
1x Motor
2x carbon brushes
2x pices of cupper pipe with inner diameter of 15mm and 10mm length

Sharplace Profi DC 3V-12V Mini Getriebemotor Geschwindigkeit REDUKTION MOTOR 12 bis 48rpm
von RT Technology
Erfahren Sie mehr: https://www.amazon.de/dp/B07DWLMPZ7/ref=cm\_sw\_em\_r\_mt\_dp\_U\_snTiEbG3FNE21

10x Kohlebürsten Motorbürsten Motorkohle Kohlen Schleifkohle 6mm x 13mm x 16mm
Mainly used in Makita power tool: LS1030N 4107R 5016B N5900B LS1040 LS1045.
https://www.ebay.de/itm/10x-Kohlebursten-Motorbursten-Motorkohle-Kohlen-Schleifkohle-6mm-x-13mm-x-16mm/153264599571?hash=item23af483213:g:N3oAAOSwhJtd53qw

Print Settings

Printer Brand: Prusa

Printer: I3 MK3S

Rafts: No

Supports: No

Resolution: 0.2 and 0.3

Infill: 30 percent 3D honeycomb

Filament: noname PLA any
Notes:

If you use the part with inbuild support, other support is not needed.

Hint: I rotate the Motor-und-Kohlehalter rotate 45 degrees and set the bridging angle to 90 degree. The included support can be released with a blow with a hammer.