Description: I’m building a wearable mindfulness device. I need a 3D enclosure design (STL + STEP) that can be 3D printed in resin and houses my electronics. Requirements Size: Approximately 45 × 35 × 15 mm Bottom: Open window for MAX30102 heart-rate sensor (touching the skin) Top (inside): Space for ThinkRobotics vibration motor module (23.5 × 21 × 8 mm) Left side: Cutout for USB-C port (Seeed Studio XIAO ESP32-C3 MCU) Right side: Opening for a small tactile button Fastening: M2 screw holes (lid + base) Straps: Two 22 mm strap slots, compatible with standard watch straps Assembly: Components will be resin-secured (no mounts needed) Aesthetic: Smooth, rounded edges, ergonomic, minimalistic (similar to fitness bands) Output: Editable CAD (STEP) + printable STL files Check the attached image for reference Deliverables 3D model of base and lid All cutouts and internal cavities precisely aligned to given specs STL and STEP files, ready for resin 3D printing References MCU: Seeed Studio XIAO ESP32-C3 (https://robu.in/product/seeed-studio-xiao-esp32c3-tiny-mcu-board-with-wi-fi-and-ble-battery-charge-supported-power-efficiency-and-rich-interface/) Sensor: MAX30102 module (https://robu.in/product/max30102-heart-rate-and-pulse-oximeter-sensor-module-black/) Motor: ThinkRobotics DC Mobile Vibration Module (23.5 × 21 × 8 mm) (https://thinkrobotics.com/products/dc-motor-mobile-vibration-module?variant=39249666048086&country=IN¤cy=INR&utm_medium=product_sync&utm_source=google&utm_content=sag_organic&utm_campaign=sag_organic&utm_source=googleads&utm_medium=cpc&utm_source=SR_google&utm_medium=pmax&utm_campaign=PMaxShopping_IN_SR467_TROAS_8x-22986575267&utm_content=-&gad_source=1&gad_campaignid=22980324231&gbraid=0AAAAACk3EvwjYsAit7_EKwtiG_LDV9oaC&gclid=Cj0KCQjw3aLHBhDTARIsAIRij58GPogLSzR3UCb9jfh0oOfdCvcGOrr97MIYuokrYv4ejo6WHcW-oSAaAlhZEALw_wcB) Battery: 500 mAh Li-Po (35 × 25 × 5 mm) (https://robu.in/product/500mah-pcm-protected-micro-li-po-battery/?gad_source=1&gad_campaignid=17427802559&gbraid=0AAAAADvLFWc3z8S7cGtB06FiNrYKZBEjY&gclid=Cj0KCQjw3aLHBhDTARIsAIRij5_nTb31zjel5nmY38kHTqzWofrx1tvE0HhI31FQYsU5GE8QZhFCqlgaAvNxEALw_wcB) What to include in your proposal Examples of previous work Estimated timeline and cost