Filter conversion ring for Dyson SV21

The filters for Dyson cordless vacuum cleaners are consumables. 
So I searched for a cheap replacement filter on Amazon.

Amazon sold many types of filters, but I couldn't find a filter that looked the same as the original.
So I bought a replacement filter that looked like it would fit, but there was a problem.

The filters were slightly different in length and couldn't be attached.
So I made a conversion ring to accommodate the difference in length.

There is a bayonet on the main body side, but the filter side is straight because designing it was too

complicated.

The material is PETG, with a layer thickness of 0.2mm, 15% internal filling, 
no rafts, no guards, and no supports.The printing time was about 30 minutes.

Dyson filters have a magnet built into the tip, and if the position of that magnet does not match the

position of the magnetic sensor on the device, the computer built into the device will determine that the

filter is not installed and will not turn the motor.

When installing a compatible filter, you need to turn it by hand little by little and align it to the

position where the motor will start when you press the power button on the vacuum cleaner.