ESP-01 Relay Module Case

28.03.25 – I finally updated the design after wanting to do so for a long time but never having the time. These are the improvements I needed:
• Sturdy top cover, now securely fastened with M3 screws
• Access hole in the cover for screwdriver access to the terminal blocks without removing the lid
• Reinforced overall structure for better durability and stability
• Improved mounting system – easily attachable to wooden surfaces using standard screws (e.g. 3x16 Spax)
• Optimized airflow to prevent overheating of components (e.g. ESP-01)

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05.07.21 – I've already looked for such a case here on Thingiverse but unfortunately couldn't find one, so I simply designed one myself.
It is a housing for one of the cheap ESP-01 Relays which you can buy on Ebay or amazon.
Since I am still a beginner with 3d printing, it took a while until I got a good result.