How To Magnetize D&D Miniatures: The Step-by-Step Guide To Interchangeable Bases And Weapons

Magnetizing D&D miniatures requires drilling precise guide holes using a pin vice hand drill, matching the polarities of high-grade N52 neodymium magnets, and securing them with cyanoacrylate super glue. By using standard 2mm x 1mm magnets for weapon joints and 6mm x 2mm magnets for miniature bases, you can seamlessly swap character options and secure your models to magnetic transport cases. This process optimizes your tabletop versatility while protecting fragile plastic and resin components from damage during transport.

Preparing Your Workbench: Magnet Sizes, Tools, and Safety Essentials

Before starting, you must gather specialized tools and understand the material properties of your miniatures. Whether your models are made of polystyrene plastic (WizKids, Games Workshop), polyurethane resin (3D-printed custom minis), or white metal, the physical mechanics of drilling and gluing remain consistent. However, tool handling and safety precautions change based on the medium.

Working with resin or metal requires respiratory protection. Resin dust is highly toxic when inhaled; always wear an N95 mask and wet-sand or wet-drill your models to keep dust particles from becoming airborne.

Hobbyist Gear & Material Requirements

• Neodymium Magnets (Rare Earth): Select N52-grade magnets. Avoid lower grades like N35, as they lack the magnetic pull required to hold heavy plastic limbs or keep bases secured during transport.
• Pin Vice Hand Drill: A manual hand drill is mandatory. Never use a high-powered electric rotary tool (like a Dremel) on plastic or resin; the friction-generated heat will melt the material, ruin the details, and warp the joint cavity.
• Set of Micro Drill Bits: Keep a range of high-speed steel (HSS) bits from 1mm to 6mm matching your magnet diameters.
• Thick Cyanoacrylate (CA) Glue & Activator: Thick gel super glue fills minor gaps around the drill hole, while an aerosol CA activator (zip kicker) cures the glue instantly.
• Hobby Knife & Center Punch: A standard scalpel-style hobby knife is needed to score the exact center point before drilling.
• Epoxy Putty (Green Stuff or Milliput): Essential for hollow bases or thin-walled models where a solid plastic anchor point does not exist.
• Marking Tools: A permanent fine-tip marker or acrylic paint pen to track polar alignment.

Estimated Benchmarks

• Project Budget: $15 to $35 depending on existing tool inventory.
• Project Duration: 5 to 10 minutes per joint; 20 minutes for a fully magnetized multi-part hero miniature.
• Skill Level: Intermediate. Requires steady hand-eye coordination and spatial awareness.

Step-by-Step Guide to Magnetizing Miniature Bases and Weapon Joints

Follow this sequence to ensure your magnets are flush, perfectly aligned, and chemically bonded for long-term tabletop play.

Step 1: Establish a Polarity Standard (The Master Magnet)

The single most common mistake in miniature magnetization is misaligned polarity, resulting in arms or bases repelling each other. To prevent this, you must create a "Master Magnet Tool."

1. Take a spare piece of sprue plastic, a thick wooden dowel, or an old paintbrush handle.
2. Glue a single neodymium magnet to one end. Mark the exposed side with a silver marker and label it "B" for Base (or "U" for Utility/Weapons).
3. Always use this master stick to test the orientation of every magnet before applying glue to your miniature.
4. For consistency across your entire D&D collection, establish a golden rule: All miniature bases have South poles facing down, and all magnetic carrying trays have North poles facing up. For limbs, the torso always receives a South pole, and the swap-out arm always receives a North pole.

Step 2: Mark and Punch the Center Point

Never attempt to drill directly into a smooth plastic surface. The drill bit will drift, ruining the surrounding details of the miniature.

1. Locate the exact center of the joint or base. For weapon swappability, assemble the miniature's torso first, and let the shoulder socket guide your placement.
2. Press the tip of a sharp hobby knife or a spring-loaded center punch directly into the center of the joint.
3. Rotate the blade gently to create a distinct, conical pilot indentation. This indentation acts as a physical guide, centering the drill bit tip.

Step 3: Drill the Pilot and Main Cavity

Patience is key during this phase. Let the cutting edges of the drill bit do the work; do not force the tool forward with excessive pressure.

1. Begin with a small pilot bit (e.g., 1mm) to clear a pathway, regardless of the final magnet size.
2. Hold the pin vice perfectly perpendicular to the surface of the joint. Any tilt will result in a slanted magnet, preventing flush contact between the two parts.
3. Drill slowly, turning the pin vice clockwise. Every three to four rotations, pull the bit out to clear plastic shavings or resin dust from the flutes.
4. Once the pilot hole is established to the correct depth, switch to the drill bit that matches the exact diameter of your magnet (e.g., a 2mm bit for a 2mm magnet).
5. Drill down to a depth equal to the thickness of the magnet plus a fraction of a millimeter for the glue layer.

Warning: Check your depth constantly. Place the magnet next to the drill bit to gauge depth, or wrap a small piece of masking tape around the drill bit to act as a physical depth stop. Drilling too deep can puncture clean through a miniature's arm or torso.

Step 4: Dry-Fitting and Depth Adjustment

Never apply glue before verifying that the magnet fits flush inside the drilled cavity.

1. Insert a magnet (still attached to your Master Magnet Tool) into the dry hole.
2. Check if the face of the magnet sits completely flush with the surrounding plastic surface.
3. If the magnet protrudes, remove it and drill slightly deeper.
4. If the magnet sits too deep, do not panic. You can fill the excess depth with a tiny ball of epoxy putty (Green Stuff) before applying glue.

Step 5: Glue and Cure the Magnet

Using the right adhesive technique ensures the magnet remains structurally bonded to the miniature during the high-stress action of pulling magnetic parts apart.

1. Apply a tiny droplet of thick cyanoacrylate glue to the bottom of the drilled hole using the tip of a toothpick. Do not flood the cavity.
2. Use your Master Magnet Tool to slide the magnet directly into the hole.
3. Press and hold the magnet in place using a flat, non-magnetic tool (such as the wooden end of a cotton swab or a brass rod) while sliding the Master Magnet Tool sideways to release it. Sliding sideways prevents the pull of the master magnet from lifting the newly glued magnet out of its socket.
4. Spray a minute amount of CA activator onto the joint to instantly cure the glue.
5. Allow the joint to sit undisturbed for at least one hour before testing the magnetic connection. Although activator provides an instant surface set, the underlying adhesive requires time to reach maximum shear strength.

Pro-Tip: If you are magnetizing thin, hollow bases, pack the underside of the base with Milliput or Green Stuff first. Press the magnet into the wet putty to create a flush seat, let the putty cure, and then secure it with a drop of thin super glue around the edges. This creates a highly durable chemical and mechanical lock.

Neodymium Magnet Size Guide for Tabletop Miniatures

Selecting the correct magnet dimensions ensures your joints hold together under gravity while fitting seamlessly inside the aesthetic constraints of 28mm to 32mm scale miniatures.

Common Magnetization Mistakes and Quick Field Fixes

Even experienced hobbyists occasionally run into issues with alignment, depth, or glue failure. Below are the most common issues encountered when putting magnets in D&D miniatures, along with clear steps to fix them.

• Failure Scenario: Reversed Polarity (The swapped weapon repels the arm instead of sticking)
  
  
  • Root Cause: The magnet was inserted upside down during the gluing process because of a failure to check alignment against the master tool.
  • Actionable Fix: Do not try to drill the magnet out directly, as this will destroy your drill bits. Instead, apply a drop of high-quality super glue debonder (nitromethane) directly to the joint. Let it sit for 5 minutes to soften the cyanoacrylate. Use a fine-tip hobby knife or a sewing needle to pry under the edge of the magnet and pop it out of the socket. Clean the cavity, check the polarity against your master tool, and re-glue.
• Failure Scenario: The Magnet Pulls Out of its Socket When Disassembling the Miniature
  
  
  • Root Cause: Poor surface preparation or inadequate adhesive surface area. Smooth neodymium surfaces do not bond well to smooth plastic without scoring.
  • Actionable Fix: Before gluing a replacement magnet, scratch both the bottom of the drilled hole and the mating face of the magnet with a hobby knife to create micro-ridges (mechanical tooth). Clean off any old, crusty glue with a knife tip. Re-glue using a hybrid method: place a tiny dab of epoxy putty at the bottom of the hole, add a drop of super glue, and press the scored magnet firmly into the mixture.
• Failure Scenario: The Magnet Sits Too Deep, Weakening the Magnetic Connection
  
  
  • Root Cause: The hole was drilled too deep, creating an air gap between the two magnets. Magnetic pull force drops off exponentially with distance.
  • Actionable Fix: Fill the deep cavity with a small, rolled ball of Green Stuff or Milliput epoxy putty. Press the magnet into the putty until it sits perfectly flush with the rim of the joint. Clean away any excess putty that squeezes out of the sides using a wet clay-shaping tool or toothpick. Let the putty cure completely before applying a drop of thin super glue to the perimeter of the magnet to lock it in place.
• Failure Scenario: Clouding (Frosting) on the Painted Surface Around the Joint
  
  
  • Root Cause: Cyanoacrylate "blooming." As super glue cures, the vaporized monomer reacts with moisture in the air and settles on nearby surfaces, leaving a white, powdery residue over your paint job.
  • Actionable Fix: To prevent this, always work in a well-ventilated space and use CA activator to speed up the drying time, which minimizes off-gassing. If frosting has already occurred on a painted model, gently brush a tiny amount of gloss varnish or olive oil over the frosted area using a detail brush. This fills the microscopic voids in the residue and restores the color depth of your paint job.

Frequently Asked Questions

What glue is best for magnetizing miniatures?

Thick cyanoacrylate (CA) gel is the best glue for magnetizing miniatures because of its high viscosity, which prevents it from running into delicate detail crevices. For heavy models or hollow resin bases, combining cyanoacrylate with an epoxy putty like Green Stuff provides a superior mechanical and chemical bond that resists the sheer force of repeated magnetic separation.

Can you magnetize pre-painted D&D miniatures?

Yes, you can magnetize pre-painted miniatures, but you must take extra precautions to protect the paint job. Apply masking tape around the area you intend to drill to catch stray plastic shavings, and use a sharp pin vice to drill slowly to prevent the paint from chipping at the edge of the hole.

What is the difference between N35 and N52 magnets for miniatures?

N52 magnets represent the highest grade of magnetic field strength commercially available, whereas N35 magnets are much weaker. For tiny components like 28mm miniature wrists, you must use N52 magnets because smaller dimensions require maximum magnetic pull to overcome gravity and the weight of the plastic arms.

How do I magnetize hollow resin bases?

To magnetize hollow resin bases, pack the underside of the base with epoxy putty (Milliput or plastic clay) until it is flush with the bottom rim. Press a 6mm x 2mm magnet into the wet putty, adjust it so it sits flat against a level surface, and allow the putty to cure before securing the edges with a thin layer of super glue.

Elevate Your Tabletop Gaming Experience

With your D&D miniatures magnetized for interchangeable gear and secure transport, your collection is ready for any modular adventure. Protect your hard work and showcase your tabletop versatility by pairing your magnetized minis with compatible steel-lined movement trays and magnetic carrying cases.