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DCC Bridge
Anonymous1769933510
02-01 08:23
Model Name
watch mechanism 3d model
Tags
machine
3d printing
realistic
Prompt
To get this to function smoothly, your 3D model needs to be designed with "Mechanical Clearances." If you model everything at the exact size of the bolt or watch, the parts will be fused together and won't move.Here is the master specification guide for placement and sizing.1. The Core "Swivel" SpecificationsThis is the vertical pivot that allows the bottom two watches to rotate left and right.FeatureX/Y PlacementZ-Height (Thickness)Diameter (mm)Main Pivot HoleExact center of the bottom chassisThrough all layers3.2mmNut Trap (Hex)Bottom of Wrist Cradle2.6mm deep6.0mm (flat-to-flat)Friction WasherSandwiched between Cradle/Chassis0.5mmID: 3.2 / OD: 7.0Critical Placement: Center the pivot exactly at $(X: 15.1, Y: 12.6)$ relative to the F-91W module. This ensures the weight is balanced and the watch doesn't "swing" awkwardly.2. The "Flip" Hinge SpecificationsThis is the horizontal hinge that allows the top watch to open like a lid.Hinge Ear Width: Each "ear" on the bottom chassis should be 3mm to 4mm thick.Hinge Barrel (Top Watch): Should be 0.4mm narrower than the gap between the ears. This "air gap" ensures the plastic doesn't rub and squeak.Placement: The hinge axis should be located 2mm above the screen level of the bottom watches. This provides enough clearance for the top watch to fold completely flat without hitting the bottom screens.3. The "Twin-Module" Internal LayoutSince you want the bottom two watches back-to-back:Separator Wall: There should be a 1.0mm thick floor between the two modules.Module Pockets:Width: 30.2mm (provides 0.1mm clearance on each side).Height: 25.2mm.Depth: 4.6mm per side.Button Channels: Place these 11.5mm apart (center-to-center) on the left wall of each pocket. Use a 2.5mm diameter hole for the pushers.4. The 18mm Lug GeometryThis is the part that connects to your strap.Inner Span: 18.2mm (Exactly).Outer Span: 25mm (Assuming 3.4mm thick lug walls).Spring Bar Hole:Height: Place the center of the hole 3mm down from the top of the lug and 3mm in from the front edge.Diameter: 1.8mm through-hole with a 1.0mm socket for the tips.5. Assembly "Zero-Point" ChecklistWhen you are aligning these in Tinkercad or your CAD software, use these offsets to ensure the parts don't collide:Vertical Clearance: Leave a 0.3mm gap between the rotating "Turntable" and the "Wrist Cradle."Horizontal Clearance: Leave a 0.2mm gap on either side of the "Flip Hinge."Bolt Length Check:Vertical Bolt: Needs to be at least 12mm long.Horizontal Bolt: Needs to be at least 35mm long (to span across the width of the watch).Summary of Part PlacementWrist Cradle: Stays at $Z=0$ (bottom).Bottom Modules: Sit at $Z=3mm$ (after cradle thickness and washer).Top Module: Sits at $Z=13mm$ (stacked on top of the bottom pair).
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Anonymous1769933510
Anonymous1769933510