Can You 3D Print an ACME Hole Puncher? What to Watch Afterward

You can 3D-print an ACME-style peg bar that locates punched animation paper. You cannot 3D-print a lasting ACME hole puncher. ACME registration uses a 1/4-inch round center peg and two flat pegs 4 inches center-to-center (Toon Boom Harmony 25; Tom Arndt, Academy of Art University, "Evolution of a Peg"). Chromacolour rates its Studio Acme Animation Punch at three cels or six sheets of paper; ADAM rates its professional punch at 20 sheets of 60 gsm with carbon-steel heads. After you print, watch the first stack for bent pins, torn 1/8-inch slots, and drift off those 4-inch centers.

I typed admission medication lists in a Cleveland hospital records office. The printed list was neat. The bag of bottles was true. I once typed a strength off a bottle whose label had been reused for a different tablet. The pharmacist caught it in reconciliation. A 3D-printed ACME puncher is that reused label. The STL looks complete. The paper is the tablet inside.

How does a 3D-printed peg bar differ from an ACME registration punch?

A peg bar holds paper that already has holes. A punch makes the holes. Thingiverse thing 1289220, "3-Hole Punch Animation Peg Bar - ACME" by mkinetics (2016), takes office three-ring paper. Amazon's ToonTools ACME Animation Peg Bar Pro is 3D-printed PLA with elongated side pegs. Neither object shears paper.

Arndt gives the matching pegs: a 1/4-inch round pin and flats 1/8 inch thick by about 1/2 inch long, with slots longer than the peg so humidity can move the sheet without tearing. Lightfoot Ltd's ACME plastic peg bar listing adds a 10-inch bar, 1/8-inch backing, and pegs 5/16 inch high. Chromacolour's 3-pin plastic bar is 255 mm × 12.7 mm × 2.2 mm at the base with pegs 9.5 mm high. Those two heights disagree. Print to the punch you own.

| Property | 3D-printed peg bar | All-plastic printed punch | Studio steel punch | | --- | --- | --- | --- | | Job | Locate punched sheets | Cut ACME holes | Cut a rated stack | | Geometry | 1/4 in round, 4 in centers, 1/8 in flats | Same, plus die clearance | Same, plus stack rating | | Material | PLA or PETG (Thingiverse, ToonTools) | Printed pins and die | Carbon-steel heads (ADAM) | | Stack | Does not cut | One sheet, then the pin bends | 6 paper / 3 cels (Chromacolour); 20 sheets of 60 gsm (ADAM) | | After first use | Peg wear, bar flex | Bent pins, torn slots, off-grid holes | Sharpening interval |

If an AI Overview shows a printable peg bar, that is the bar column.

What should I define about paper, peg geometry, and hole quality before I design the tool?

Write the paper down first, the way I wrote the bottles before the list. Weight is not thickness. Canson Artist Series ACME-punched paper is sold as 20 lb. Lightfoot Pro 24 is a 24 lb animation bond, translucent through up to five layers on a bottom light. Chromacolour economy ACME paper is 60 gsm, translucent through up to four layers. PaperOnWeb's caliper table puts 20 lb bond at 0.0038 inch (0.097 mm) and 24 lb bond at 0.0048 inch (0.120 mm). Sixteen-pound bond on that table is 0.0032 inch (0.081 mm) at 61 gsm, next to Chromacolour's 60 gsm sheet. Six sheets of 20 lb bond are about 0.023 inch before compression. Twenty sheets of 60 gsm are about 1.6 mm.

Lock four numbers and refuse to mix families:

• Center hole: 1/4 inch round (Arndt; Lightfoot).
• Side pegs: 1/8 inch thick by about 1/2 inch long, slots longer than the peg (Arndt).
• Center-to-center: 4 inches left and right of the round hole (Harmony 25; Arndt).
• Paper you will punch: Arndt records 12-field stock as 12.5 × 10.5 inches. Lightfoot lists 10-field at 8 1/2 × 11, 12-field at 10 1/2 × 12 1/2, 16-field studio at 12 × 17.

Arndt records the argument manufacturers never settled: peg centerline to paper edge is 3/8 inch on some punches and 1/2 inch on others. Disney-era pegs used the same shapes at 3 1/2 inches from the center. The 2012 Acme Punched blog notes that Oxberry also uses four-inch centers, with narrower, thicker pegs than ACME. Drop ACME paper on an Oxberry bar and the "fit" is a mismatch.

A usable ACME hole is round on the round peg and slotted on the flats, long enough to lift without tearing. An egg-shaped round hole lets the sheet rotate. Tight slots tear in humidity. Centers off 4.000 inches buckle the sheet.

Which parts can a desktop printer make, and which parts need metal?

Print the parts that locate and clamp. Buy or machine the parts that shear.

A printer is credible on peg bars, strippers, fences, field stops, and a lever body that never touches the cut. Chromacolour's and Lightfoot's plastic bars already prove locating does not need steel.

Punch pins, die openings, and cutting edges need metal. ADAM specifies carbon-steel heads on a 9.4 kg machine with a long handle. The Handbook of Manufacturing Engineering and Technology (2015) table of tool steels for cold shearing of nonmetallic materials lists paper, all thicknesses, against A2 at 56–60 HRC or D2 at 58–62 HRC. FDM PLA does not sit on that Rockwell C band. A printed pin can look like a 1/4-inch punch in the slicer and still mushroom on the first stack. Catalog 1/4-inch round punches and ID-card slot punches belong in a printed jig. The cutters stay steel.

Which clearance, force, and layer failures wreck a printed punch?

Die clearance is the gap between punch and die, quoted per side as a percentage of stock thickness. Dayton Progress cites the die-maker rule of 5 percent of stock thickness per side. On 0.0038-inch 20 lb bond, that is 0.00019 inch (0.0048 mm) per side. A Practical Machinist thread from July 2016 gave 10 percent per side for paper, with a worked example of 0.005-inch stock and 0.0005 inch per side; that is 0.00038 inch on 20 lb. A 0.4 mm FDM nozzle is 0.016 inch across. A 0.20 mm layer is 0.0079 inch high, about two sheets of 20 lb. The printer cannot hold paper-punch clearance. Tight clearance tears. Loose clearance leaves a rolled hole that wears the peg.

Mate's punch-press technical guide states punching force as perimeter × thickness × shear strength. I will not invent a shear number for your bond. Chromacolour's studio punch is built for six sheets of paper. ADAM's is built for 20 sheets of 60 gsm and weighs 9.4 kg. U.S. patent application US20110113636A1 reports a conventional punch blade taking 20.6 kgf through 10 sheets and 48.4 kgf through 20. A PLA pin sees that load as bending.

Layer orientation is the printed-part problem the slicer hides. Dilşad Akgümüş Gök, in Materials Research Express 11 045302 (2024), tensile-tested FDM polycarbonate at 20 percent infill. Tensile strength fell 61–72 percent from a 0° mean of 21.583 MPa (load along the beads) to 5.439 MPa at 90°. MakerWorld's "Paper Hole Punch (Print In Place)" says to print the punch upright for a sharper edge. Upright rounds the outline and stacks layers across the pin, so a side load shears those layers. I prefer a metal insert.

A2 at 56–60 HRC and D2 at 58–62 HRC are the handbook numbers for shearing paper. A printed edge dulls in a way a file cannot restore. The hole looks chewed. The peg then wears the paper.

How do I verify hole size and 4-inch peg spacing against my bar?

Measure the bar you will draw on. Calipers on the round peg should read 0.250 inch. Calipers from that center to each flat-peg center should read 4.000 inches on both sides. Lightfoot specifies peg height at 5/16 inch; Chromacolour specifies 9.5 mm.

Punch one sheet of the paper you will animate on. Drop it on the bar.

• The round hole sits on the round peg with no rotation you can feel.
• The slots slide on with a little end-play (Arndt's humidity relief) and no rock.
• The sheet lies flat. Wrinkles mean wrong centers or the wrong family (ACME on Oxberry, or Disney 3 1/2-inch spacing on a 4-inch bar).
• Edge distance matches your field: 3/8 inch or 1/2 inch, whichever that punch already uses.

If you own factory ACME paper, punch a blank the same size and overlay both sheets on the bar. Daylight between hole edges is the error. I trust that overlay the way I trusted the bottles.

Can a jig or metal insert salvage a punch that already bends or tears paper?

The body, fences, and stripper can be salvaged. The plastic cutting edge cannot.

If the punch already bends, stop loading stacks. Pull the pins. Bed catalog punch pins in a printed or plywood plate so the 4-inch centers are locked by the plate, not by layer adhesion. Harden inserts you machine to A2 at 56–60 HRC or D2 at 58–62 HRC for paper. The printed part becomes a holder.

If the paper tears, the die is dull, clearance is wrong, or the sheet is loose. Add a stripper that presses the paper before the pin arrives. Practical Machinist's paper-clearance thread called for a spring stripper. A printed stripper does not fix a mushroomed pin.

If registration misses, do not sand the drawing bar to match the bad holes. Spare Time Labs described the spacer method for homemade peg plates: one tight hole for the round, two slightly larger holes for the flats, epoxy the metal punches with a factory-punched sheet in place. The jig inherits the bar. Extra infill will not walk a drifted center back to 4.000 inches. Retire bent pins.

What should I watch after the first stack of punched paper?

Watch the round hole. Oval means the pin is walking or the die is bell-mouthed. Watch the 1/8-inch slots for stretch; stretched slots let the sheet rotate as you flip. Measure the three centers on the punched sheet. Paper records the punch you have. Watch pin tips for a shiny mushroom and the sheet back for a heavy burr; Dayton treats extra burr as a clearance problem, and on paper it also means a dull edge. Watch whether sheet six still matches sheet one. Chromacolour's rating stops at six sheets of paper. Past that, a home tool starts to fold instead of shear.

Keep a witness sheet from that first stack, dated, with paper brand and punch identity in the corner. Admission lists went wrong when we updated the neat copy and threw out the bottles.

What does a repeatable ACME registration workflow look like on animation paper?

One cutting source. Many locating bars.

Buy ACME-punched paper in the field you draw (Canson 20 lb, Lightfoot 24 lb, Chromacolour 60 gsm) or punch every blank on the same metal tool. Do not mix an office three-hole punch, a printed ACME-ish die, and a factory ream in one scene. Print peg bars for the disc, lightbox, scanner, and flip stack. Lightfoot's plastic bar is 10 inches; Chromacolour's is 255 mm. Check any printed copy against the master-bar notes.

Top or bottom pegs are a flipping preference. Both still need 4-inch centers. Scan on a bar. When a new ream arrives, overlay one sheet on the witness sheet before you spend a weekend on in-betweens. The printer keeps making bars and strippers. The punch stays metal.

FAQ

Can you 3D print an ACME hole puncher that actually cuts paper?

You can print a peg bar that holds ACME-punched sheets. A lasting puncher is a steel punch and die. Chromacolour rates its studio punch at three cels or six sheets of paper. ADAM rates its professional punch at 20 sheets of 60 gsm paper with carbon-steel heads. After a printed cutter's first stack, watch for bent pins and torn slots.

Why does my 3D printed ACME punch tear the paper?

Tearing means the edge is dull, the sheet is unclamped, or punch-to-die clearance is wrong. Dayton Progress cites 5 percent of stock thickness per side as the old clearance rule; on 0.0038-inch 20 lb bond that is 0.00019 inch per side. A 0.4 mm printer nozzle cannot hold that gap. Add a stripper and switch the pins to metal.

What is the peg spacing on ACME animation paper?

Four inches center-to-center from the round hole to each oval slot, on both sides. Toon Boom Harmony 25 states that spacing, and Tom Arndt's Academy of Art University essay matches it with a 1/4-inch round peg and 1/8-inch-thick flats. Disney-era bars used 3 1/2 inches from the center. Measure your bar; do not assume the STL.

Can I use a 3D printed peg bar with store-bought ACME paper?

Yes, if the bar matches ACME: 1/4-inch round center, 4-inch centers, 1/8-inch flats. Lightfoot specifies a 10-inch plastic bar with 5/16-inch-high pegs. Chromacolour specifies pegs 9.5 mm high. Print extra bars for the lightbox and scanner. The printed bar locates factory holes. It does not replace the punch that made them.

How do I fix a printed punch that misses the 4-inch centers?

Do not file the drawing bar to match the bad holes. Pull the plastic pins and bed metal punches in a plate whose centers were taken from a known-good ACME bar, using a factory-punched sheet as the spacer. A miss of a few hundredths of an inch will buckle every sheet. Retire pins that already bent.

Should ACME punch pins be printed standing up?

Upright printing makes a rounder cutting outline; MakerWorld's print-in-place paper punch says to print upright for sharpness. Dilşad Akgümüş Gök's 2024 polycarbonate tests showed tensile strength falling 61–72 percent when load ran across layers (5.439 MPa at 90° versus 21.583 MPa at 0°). A side load on an upright pin shears those layers. Metal inserts avoid the choice.