American Civil War: 20 total Union North

American Civil War: Union North

The soldiers of the Union North marched from factories, farms, ports, immigrant neighborhoods, frontier towns, and growing industrial cities into the defining struggle of the American Civil War. From the opening battles of 1861 through the war’s final campaigns, Union infantrymen carried standardized blue uniforms, expanding military equipment, and the logistical strength of a rapidly industrializing nation. These soldiers fought across vast distances in forests, fields, rivers, mountains, trenches, and urban strongholds while preserving the Union through years of brutal conflict. This collection aims to capture the appearance, discipline, equipment, and individuality of the Union soldier with historically inspired detail suited for display, gaming, dioramas, and historical appreciation.

Note:  there are 20 different soldier models in this set.

This is a group of four:

Individual STLs for each are also uploaded.

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⚠️ Print & Handling Notes

These models include fine, delicate details.
A strong filament is recommended — or anneal your set for additional strength (see below).

Bambu Studio Settings

Printer Settings

• Nozzle Diameter → 0.4 mm

• Compatible Material → PLA+

Filament Settings

• Nozzle Temperature (first layer) → 205 °C

• Nozzle Temperature (others) → 200 °C

• Bed Temperature (first layer) → 60 °C

• Bed Temperature (others) → 50–55 °C

• Cooling Fan:

◦ Layer 1–2 → OFF

◦ Layer 3+ → 100%

Quality

• Layer Height (Standard) → 0.20 mm

• Initial Layer Height → 0.20 mm

• Line Width → 0.45 mm

• Elephant Foot Compensation → 0.15 mm

Speed

• First Layer Speed → 20 mm/s

• Outer Wall Speed → 35 mm/s

• Inner Wall Speed → 50 mm/s

• Infill Speed → 50 mm/s

• Travel Speed → 120 mm/s

Acceleration / Jerk

• Default Acceleration → 1000 mm/s²

• Outer Wall Acceleration → 500 mm/s²

• First Layer Acceleration → 300 mm/s²

• Travel Acceleration → 2500 mm/s²

• Jerk (XY) → 8 mm/s

Strength / Infill

• Wall Loops → 3

• Top Layers → 4

• Bottom Layers → 4

• Infill Density → 20%

• Infill Pattern → Gyroid

• Sparse Infill Anchor Length → 5 mm (🔔 Note: increase to 10 mm if you see weak infill connections)

Skirt & Brim

• Skirt Loops → 3

• Skirt Distance → 2 mm

• Skirt Layers → 1

Retraction

• Retraction Distance → 4 mm

• Retraction Speed → 40 mm/s

• Z-Hop → 0.2 mm

• Wipe While Retracting → Enabled

• Retract on Layer Change → Disabled

• Minimum Travel Before Retraction → 1.0 mm

Supports

• Support Style → Tree

• Top Contact Z Distance → 0.25 mm (detachable, fixed)

• Support Density → 15%

• Support Interface Pattern → Grid

• XY Distance → 0.5 mm

• First Layer Support Gap → 0.3 mm

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♨️ ANNEALING — Hardening Your Chess Pieces

Annealing your PLA models can improve strength by 10 – 20 %.
If you plan to play with these sets regularly, annealing is highly recommended.

If your goal is display or occasional play, annealing is optional.
The appearance and finish remain unchanged.

🔗 More info: Annealing PLA Prints for Strength — Easy Ways (All3DP)

https://all3dp.com/2/annealing-pla-prints-for-strength-easy-ways/

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Please note: 

Because I’m retired and on a fixed income, I print these models at a smaller scale to save on filament. All of these models are printed at 70% - 80% of the model uploaded size. 

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Thank you!  Thank you!  To all of you who Boost my uploads.  Because of YOU I can get my filament now from “Maker's Supply”, saving me from using real money. 

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These creations are made purely for the joy of sculpting and sharing. Printing at a reduced scale can sometimes affect the quality of fine details; printing at full or larger sizes will yield smoother, more refined results.

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Also, as a 77-year-old maker with hands that sometimes have a mind of their own, I occasionally have to use a little hot-glue surgery to reattach delicate parts. Please handle models with care—especially thin necks, joints, and fragile connectors. Take a moment to study your model before removing supports… or you might find yourself reaching for the glue gun too! 🥲