📋 Master Parts List (MPL) - Amalgam M12 Box Frame
Project Context: - Frame Type: M12 Box Frame - Extruder Setup: Wade Extruder + BLTouch - Motion System: Z-bed gantry and X-gantry - Configuration: Triple-Z (Reference Spec / Tier 3)
Frame/Structural (Bottom Frame)
| Corner 1: Front-Left + Z1 |
1 |
Corner bracket with integrated NEMA17 Z1 motor mount, 4× M12 rod clamps, jam nut access holes |
| Corner 2: Front-Right + Z2 |
1 |
Corner bracket with integrated NEMA17 Z2 motor mount, 4× M12 rod clamps, jam nut access holes |
| Corner 3: Back-Left |
1 |
Standard corner bracket (no Z-motor), 4× M12 rod clamps, jam nut access holes |
| Corner 4: Back-Right |
1 |
Standard corner bracket (no Z-motor), 4× M12 rod clamps, jam nut access holes |
| Z-Puck: Z3 Mount |
1 |
Slide-on clamp for back horizontal rod with integrated Z3 NEMA17 motor mount, leadscrew clearance |
Frame/Structural (Top Frame/Gantry)
| Top Corner TL |
1 |
Top-Left standard corner bracket, 4× M12 rod clamps |
| Top Corner TR |
1 |
Top-Right standard corner bracket, 4× M12 rod clamps |
| Top Corner BL |
1 |
Bottom-Left standard corner bracket, 4× M12 rod clamps |
| Top Corner BR |
1 |
Bottom-Right standard corner bracket, 4× M12 rod clamps |
X-Axis Components
| X-Carriage |
1 |
Main carriage plate with 2× LM10UU (or LM8UU) bearing housings at 24mm spacing, universal toolhead puck mount pattern |
| X-Carriage: Toolhead Puck |
1 |
Universal mounting plate (30×30mm pattern) for Wade extruder/swappable toolheads |
| X-Motor Mount |
1 |
M12-to-NEMA17 motor mount, holds X-motor with GT2 pulley, clamps to X-axis smooth rods |
| X-End Idler |
1 |
Opposite end of X-axis, holds GT2 idler pulley with belt tensioning slot |
| X-Axis Belt Tensioner |
1 |
Screw-drive tensioner integrated into idler (adjusts GT2 belt tension) |
Y-Axis Components
| Y-Motor Mount (Left) |
1 |
M12-to-NEMA17 motor mount at back-left corner, clamps to Y-axis horizontal rod |
| Y-Motor Mount (Right) |
1 |
M12-to-NEMA17 motor mount at back-right corner, clamps to Y-axis horizontal rod |
| Y-Axis Rod Clamps |
2× |
Clamps to attach Y-axis smooth rods to front horizontal M12 rods |
| Y-Idler Pulley Mount |
1 |
Idler for Y-belt return path (if dual-belt system used) |
Z-Bed Gantry (Triple-Z System)
| Spider Hub |
1 |
Central bed support hub, high-density printed block with dovetail slots |
| Spider Arm |
3 |
Identical struts (125mm long) that slot into hub, bolt to bed mount points |
| Spider Stiffening Cap |
1 |
Optional flat triangular plate that sandwiches hub+arms for rigidity |
| Lead Screw Nut Housing |
3 |
Integrated into corners/Z-puck, holds T8 brass nuts for lead screws |
Extruder/Hotend (Greg’s Wade)
| Wade Extruder: Large Gear |
1 |
43-tooth printed gear, drives M8 hobbed bolt (5.22:1 ratio) |
| Wade Extruder: Small Gear |
1 |
13-tooth pinion gear, mounts to NEMA17 motor shaft |
| Wade Extruder: Body |
1 |
Main body housing gears and 608 bearings, hinged idler arm |
| Wade Extruder: Idler Arm |
1 |
Hinged idler arm with tension spring, holds 608 idler bearing against hobbed bolt |
Electronics/Mounting
| Brain/Electronics Puck |
1 |
Mounting plate for MKS SKIPR or donor board, clamps to back M12 rods |
| MKS SKIPR Mount |
1 |
Specific bracket for SKIPR board (if SKIPR used) |
| Donor Board Puck |
1 |
Alternative mount for Creality 4.2.2, Anet V1.0, or Trigorilla boards |
| Endstop Mount (X) |
1 |
Mount for X-axis mechanical/optical endstop switch |
| Endstop Mount (Y) |
1 |
Mount for Y-axis mechanical/optical endstop switch |
Cable Management
| Cable Chain Clip (Frame) |
4× |
Clips to secure cable chain to vertical M12 rods |
| Cable Chain Clip (Gantry) |
2× |
Clips to secure cable chain to horizontal rods |
| Wire Guide Clips |
6× |
Small clips to organize wiring harness along frame |
| Umbilical Sleeve Mount |
1 |
Guide for main wiring loom from carriage to frame |
Motion System (Optional Variants)
| Smooth Rod Clamp (8mm) |
8× |
Clamps for 8mm smooth rods (if using salvaged rods) |
| Smooth Rod Clamp (10mm) |
8× |
Clamps for 10mm smooth rods (Neo Standard) |
| Rail-Puck (MGN12H) |
8× |
Alternative clamp for MGN12H linear rails (Tinker path) |
| Bearing Housing Cover |
4× |
Snap-on covers for LM10UU/LM8UU bearings (protection) |
Multi-Color Expansion (ERCF Optional)
| Reverse Bowden Guide |
1 |
Bracket to guide filament tube from frame to toolhead |
| ERCF Mount |
1 |
Wall-mount puck for standalone ERCF v2 unit |
| Filametrix Cutter Mount |
1 |
Mount for mechanical filament cutter on toolhead |
Configuration Notes
Total Printed Parts Count
- Reference Spec (Triple-Z): ~45-55 parts
- Belted-Z (Tier 1): ~40-45 parts (reduce corners to 2× Z-mount + 2× standard, remove Z-puck)
- Tinker Path (Linear Rails): Replace rod clamps with rail-pucks (same count)
Tier-Specific Adjustments
| Tier 1 (Belted-Z) |
Single motor with belt sync |
2× Z-mount corners + 2× standard |
Remove Z-puck, reduce Spider to 4-arm symmetric, remove 1× Z-motor mount |
| Tier 3 (Triple-Z) |
3 independent motors |
3× Z-mount corners + 1× standard + Z-puck |
As shown above |
| Tinker (Linear Rails) |
Either system |
Same corners |
Replace smooth rod clamps (8×) with rail-pucks (8×) |
Build Volume Variants
- 220mm³ Build: Standard dimensions as listed
- 250mm³ Build: Spider arm length increases to ~135mm
- 300mm³ Build: Spider arm length increases to ~160mm, may require larger hub
Motion System Variants
- Path A (Scavenger): 8mm smooth rods + LM8UU bearings
- Path B (Neo Standard): 10mm smooth rods + LM10UU bearings
- Path C (Tinker): MGN12H linear rails + rail-pucks
Parts Not Yet Designed
As of CAD-FILE-ORG.md, the following parts are planned but not yet implemented:
Design Progress Summary
Complete: 2/9 frame parts (22%) - [x] Corner Standard - [x] Corner Front-Left (Z1 integrated)
Pending: 7/9 frame parts (78%) - [ ] Corner Front-Right (Z2 integrated) - [ ] Corner Back-Left (standard) - [ ] Corner Back-Right (standard) - [ ] Z-Puck (Z3, back center horizontal rod) - [ ] Top Corner TL - [ ] Top Corner TR - [ ] Top Corner BL - [ ] Top Corner BR
Overall Progress: ~4% of total parts (2/50+ designed)