---
# System prepended metadata

title: Design Constraints
tags: [design]

---

#  Design Constraints/Considerations

:::info
At this stage a random collection of thoughts that need validation.
:::

## Vacuum

### Filtering (bagless)
- All bagless vacuums need filters that need to be maintained
- Good filtering is important for longer lifetime of the motor
    - fine particles that get into the motor are a major stress
- Make access and cleaning easy for the user
- Remind user of filter cleaning (app notification)
- Have a sensor to measure particle pollution

### Cyclone (bagless)
#### Cyclone should be cylindrical, both inner and outer geometry
![2025-09-30_18-43-29_screenshot](https://hackmd.io/_uploads/H145Oqtnxg.png =x200)  
*Outer cyclone geometry is not cylindrical (Shark)*

#### Cyclone should be facing downwards
- Taking advantage of gravity (vs. working against gravity)
- Dysons follows this design (vs. Shark)

![2025-09-30_18-46-37_screenshot](https://hackmd.io/_uploads/ByQMu5thlg.png =x200)  
*Left: Dyson (facing downward), right: Shark (facing upward)*  
https://youtu.be/e4OIEz5z7Ag?t=226

### Parallel/serial configuration

### Example: 4p (industrial dust extractor)
- https://www.youtube.com/watch?v=8KWIB_UZQ9Y
- 4 motors - 4 filters - 4 cyclones - 1 major cyclone - steel drum

![image](https://hackmd.io/_uploads/SkMBYPRBZg.png =x200)  
*Motors on top with 1.2kW each.*

## Add-Ons

### Green laser
- Patented by Dyson
- Aftermarket products do exist
    - *3rd Party VACUUM LASERS Tested - Game Changer!* https://www.youtube.com/watch?v=NekjygX6AUI

![image](https://hackmd.io/_uploads/rJN4yjJUbg.png =x200)  
[:link: Galaxus](https://www.galaxus.de/de/page/neue-duese-komprimierter-staub-der-neue-dyson-im-alltagstest-41257)

## Generic

### BOM

#### Minimize screw types
- In the best case have one type of screw.
    - e.g. *EEVblog 1717 - Rigol's INSANE New $999 MHO98 Oscilloscope: Teardown* https://youtu.be/6lBU4NwmY7s?t=1157

