Sump Probe Isolation Measuring Chamber

Create a highly compact, 3D-printable isolated probe measuring chamber (water block) designed for reef aquarium water testing, rendered as a unified parametric STL object. 1. FUNCTIONAL PURPOSE: - Isolates 4 measurement probes and 1 titanium grounding probe from stray electrical currents in the sump. - Removes micro-bubbles before water reaches the probe sensors. - Powered by a 10/12mm flexible tubing at 300 L/h. 2. OVERALL DIMENSIONS & MOUNTING: - External Size: Maximum height of 100mm, optimized footprint to remain as compact as possible. - Rim Mount: Integrated rim hanger bracket on the back wall, designed to fit over glass rim thickness ranging from 12mm to 15mm. The chamber hangs above the sump water level. 3. INTERNAL CHAMBER & BUBBLE TRAP DESIGN: - Two-chamber internal division: a) Inlet & Bubble Removal Chamber: Water enters at the bottom via a 10/12mm hose barb connector. Includes a vertical baffle/chicane system acting as a bubble trap. Micro-bubbles rise to a vented top zone, while bubble-free water flows underneath/over the wall into the measurement zone. b) Measurement Chamber: Holds the 5 probes submerged in continuous water flow. - Outlet: Located near the top of the measurement chamber, featuring a 10/12mm hose barb connection for quiet, non-cascading drain hose return to the sump. No overflow cascades. 4. PROBE HOLDER TOP PLATE & FASTENING (NO O-RINGS NEEDED): - The top lid features 5 circular ports designed for 13mm (0.5 inch) diameter probes (4x Neptune probes, 1x Titanium Ground Probe). - Fully 3D-printed collet/compression clamp mechanism: Printed threaded caps with slotted collet cones around each hole to mechanically lock and seal the 13mm probe bodies at adjustable depths without requiring additional commercial rubber O-rings or gaskets. 5. PRINTABILITY SPECIFICATIONS: - Designed specifically for FDM 3D printing in PETG material. - 100% self-contained printable design (no external metal hardware, screws, or seal rings needed). - Wall thickness: Minimum 3mm for structural rigidity and watertightness. - Internal chamfers and 45-degree overhang angles for support-free or minimal-support interior printing.

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