Brackets and mounts
Power Supply Project Box with 21V Battery Dock
- Bounding box
- 120.0 × 102.5 × 50.0 mm
- Engine
- Precision B-rep
- Parameters
- 49
- Published
- October 22, 2026
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The prompt
"Design a precise 3D printable mechanical project box for a custom power supply, consisting of a main enclosure body and a separate top cover, with a completely standalone detachable mounting plate for a 21V power tool battery adapter. 1. Main Enclosure Body & Cover: Outer style: Heavy-duty rectangular electronics enclosure with 2.5mm wall thickness, 2mm internal fillets, and ventilation slots on side walls. Assembly: Top cover attaches via 4 corner screw standoffs (compatible with M3 threaded inserts). Front Panel Cutouts: Center: Rectangular window with recessed bezel for an SK180S buck-boost power supply module (screen, push buttons, and rotary encoder knob). Lower section: Two 7.2mm round panel-mount holes for 4mm banana jack binding posts. Side Panel Cutout: One rectangular cutout (16mm x 9mm) with two M2.5 screw mounting holes for a panel-mount XT60 socket. 2. Detachable 21V Battery Adapter Dock (Separate Component): A standalone external adapter bracket designed to be printed separately and mounted externally onto the enclosure using M3 screws. Features standard 21V cordless power tool battery slide-in rails, dual spring-loaded terminal contacts slots, and a mechanical locking catch recess."
Parameters
| Name | Value | Range |
|---|---|---|
| Body Width (X) | 120 mm | 60 – 250 |
| Body Depth (Y) | 80 mm | 40 – 200 |
| Body Height (Z) | 45 mm | 25 – 150 |
| Wall Thickness | 2.5 mm | 1.2 – 6 |
| Outer Corner Radius | 4 mm | 0.5 – 12 |
| Internal Fillet Radius | 2 mm | 0.5 – 5 |
| Standoff Boss Diameter | 8 mm | 5 – 16 |
| M3 Insert Hole Dia | 4.2 mm | 3 – 6 |
| M3 Insert Hole Depth | 9 mm | 4 – 20 |
| Cover Thickness | 5 mm | 2 – 12 |
| Cover Locating Lip Height | 2.5 mm | 0.8 – 8 |
| M3 Clearance Hole Dia | 3.4 mm | 2.5 – 5 |
| Bezel Recess Width | 68 mm | 20 – 110 |
| Bezel Recess Height | 32 mm | 10 – 60 |
| Bezel Recess Depth | 1.5 mm | 0.5 – 4 |
| Bezel Center Height | 28 mm | 5 – 90 |
| SK180S Window Width | 58 mm | 15 – 105 |
| SK180S Window Height | 26 mm | 8 – 55 |
| Banana Jack Hole Dia | 7.2 mm | 3 – 14 |
| Banana Jack Spacing | 19.05 mm | 8 – 60 |
| Banana Jack Height | 7 mm | 4 – 40 |
| XT60 Cutout Width | 16 mm | 8 – 30 |
| XT60 Cutout Height | 9 mm | 5 – 20 |
| XT60 Center Offset (Y) | -18 mm | -35 – 20 |
| XT60 Center Height | 20 mm | 6 – 38 |
| M2.5 Screw Hole Dia | 2.5 mm | 1.5 – 5 |
| M2.5 Screw Spacing | 26 mm | 12 – 55 |
| Vent Slot Count | 4 pcs | 1 – 10 |
| Vent Slot Width | 4 mm | 1.5 – 10 |
| Vent Slot Height | 26 mm | 5 – 40 |
| Vent Slot Pitch | 7 mm | 3 – 20 |
| Vent Pattern Center (Y) | 14 mm | -30 – 30 |
| Vent Pattern Center (Z) | 22 mm | 8 – 40 |
| Dock Width | 65 mm | 40 – 110 |
| Dock Thickness | 18 mm | 8 – 40 |
| Dock Height | 45 mm | 25 – 90 |
| Slide Rail Width | 7 mm | 3 – 15 |
| Slide Rail Height | 5 mm | 2 – 12 |
| Contact Slot Width | 5 mm | 2 – 12 |
| Contact Slot Height | 10 mm | 4 – 25 |
| Contact Slot Spacing | 14 mm | 6 – 40 |
| Contact Slot Height (Z) | 8 mm | 3 – 35 |
| Locking Catch Recess Width | 14 mm | 6 – 30 |
| Locking Catch Recess Height | 8 mm | 3 – 20 |
| Locking Catch Recess Depth | 3 mm | 1 – 10 |
| Locking Catch Height (Z) | 15 mm | 4 – 40 |
| Dock M3 Screw Hole Dia | 3.4 mm | 2.5 – 6 |
| Dock Screw Spacing | 44 mm | 20 – 90 |
| Dock Screw Height (Z) | 36 mm | 10 – 80 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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