Can 3d printers print Delrin?

Yes, but it is highly challenging. Delrin (POM/Acetal) requires an all-metal hotend with a nozzle temperature of 210°C to 225°C, a heated bed of 120°C to 150°C, and ideally an enclosed, heated chamber 60°C–80°C to prevent severe delamination and warping. It refuses to adhere to standard bed surfaces like glass or PEI, requiring specialized substrates such as drywall joint tape, wood platforms, or thick sketch paper glued to the build plate. Most critically, Delrin must never be heated above 230°C, as the material will chemically decompose and release toxic formaldehyde gas.

What 3d filament is closest to Delrin?

No single filament perfectly replicates all of Delrin's traits, but several offer similar engineering properties: Polyamide 12 (PA12) is widely considered the closest all-around functional alternative, offering high strength, good chemical resistance, and relatively low friction. Igus Iglidur (e.g., i150 / i180) tribofilaments offer slick, wear-resistant surface performance for gears or bearings. Carbon Fiber Nylon (PA-CF) adds rigidity and stiffness, while Polycarbonate (PC) & PEEK provide high strength and chemical resistance.

What is the cheapest filament for 3d printing?

PLA is the cheapest filament overall, averaging $14 – $18 USD per 1kg spool with the lowest hidden operational costs since it prints at low temperatures (190°C–210°C) without requiring a heated bed or enclosure. PETG ($18 – $22 USD) offers the best value for functional parts, while ABS ($18 – $24 USD) is the most expensive in practice due to high bed temperatures, enclosure demands, and higher print failure rates.

Which is stronger nylon or delrin?

The stronger material depends entirely on the type of mechanical stress: Nylon is tougher and handles higher tensile loads of roughly 12,000 psi (compared to Delrin's 10,000 psi), naturally yielding and absorbing impact energy without shattering. Delrin is far more rigid, resists deflection, and absorbs almost zero moisture (~0.2%), making it superior for precision-machined parts requiring absolute dimensional stability in humid conditions.

Delrin 3D Printing: Filaments, Settings and When to Machine Instead

Q: What temperature do you print POM at?

It depends on the filament: nozzle 195 to 250 °C and bed 100 to 130 °C across the sources, so follow your filament's sheet [1] [2] [4] [5] [6]

Q: Is printing POM safe?

Keep the hotend below 230 °C , ventilate, and follow OSHA limits [8] [9] .

delrin 3D printing nozzle extruding a white sliding bushing on a high-temperature heated bed.

You can 3D print POM (acetal) filament, but “Delrin filament” usually is not Delrin.

Delrin is a homopolymer brand, while the POM filaments with published data are copolymer [1][3][7].

Their settings come from the filament maker and differ widely: nozzle ranges run from 195 to 250 °C, and bed ranges from 100 to 130 °C [1][2][4][5][6].

Printed values are also lower than stock: one maker lists 50 MPa and 1,870 MPa (XY) for printed POM, against 73 MPa and 3,100 MPa for Delrin 150 resin [2][10].

This guide gives the published settings, the safety limits, and a way to choose between printing, machining and a tribofilament.

Quick answer

Print POM when: you need a one off functional prototype, the part is small (one maker designs its filament for parts up to 100 mm), the load is light, and you own an enclosed printer with a heated bed [2][3].
Machine from Delrin stock when: you need stock shape properties, a certified grade, or a held tolerance. One service publishes ±0.005 in as standard [11].
Use a tribofilament when: you need printed wear parts on a less demanding printer. igus lists i150 with a 230 to 250 °C nozzle and a bed of 20 to 60 °C [13].
Safety: an acetal safety data sheet reports heavy formaldehyde fuming above 230 °C [8]. Ventilate, and do not rely on smell.

What “Delrin Filament” Means

Which filaments exist

Filament	Type	Notes	Source
Ensinger TECAFIL POM-C	Polyacetal copolymer	1.75 mm, white, 500 g	[1]
Grupa Azoty Tarfuse POM NAT	Polyacetal copolymer	Designed for functional parts up to 100 mm	[2][3]
Gizmo Dorks Acetal	Type not stated	Sold as “Acetal Delrin Filament”	[4]
Retailer POM filaments	Type not stated	Sold as standard POM	[5][6]

In our search we found no filament sold by Delrin USA. The filaments above are sold as POM or acetal, and some retailers use the Delrin name.

Why the type matters

“Acetal” can mean homopolymer (Delrin) or copolymer.

Boedeker reports homopolymer is about 10 to 15% stronger, while copolymer holds up substantially better in hot water, steam and chlorine sanitizers [7].

Check the datasheet before you assume you are printing Delrin. See our detailed guide on Delrin vs. Acetal.

Published delrin 3d Printing Settings by Filament

Settings table

Filament	Nozzle	Bed	Chamber	Speed	Drying	Source
Ensinger TECAFIL POM-C	195 to 205 °C (max melt 230 °C)	110 to 130 °C	Not stated	Not stated	80 °C for 4 h	[1]
Tarfuse POM NAT	210 to 240 °C	100 to 130 °C	70 to 140 °C	10 to 30 mm/s	4 to 6 h at 140 °C if moist	[2]
Gizmo Dorks Acetal	210 to 220 °C	110 °C (at least 100 to 110 °C)	Enclosed printer recommended	30 mm/s	Airtight container with desiccant	[4]
Retailer POM (Canada)	220 to 250 °C	100 to 120 °C	Enclosure strongly recommended	Not stated	Not stated	[5]
Retailer POM (USA)	230 to 250 °C	100 to 120 °C	Enclosure strongly recommended	Not stated	Not stated	[6]

Ensinger states its parameters are indicative and not guaranteed, and Tarfuse says actual values vary by printer, part design and conditions [1] [2].

What the sources agree and disagree on

Agree: a heated bed in the 100 to 130 °C range, and an enclosure or chamber [1][2][4][5][6].
Disagree: nozzle temperature (195 to 250 °C), and drying (80 °C for 4 hours versus 140 °C for 4 to 6 hours) [1] [2].
No source lists a 150 °C bed. If a guide gives one, check it against your filament’s sheet.

Bed surface and moisture

Gizmo Dorks says the hardest part is first layer adhesion, and that POM prefers wood or cellulose-based platforms[4].

One retailer sheet says POM has poor adhesion and calls for mechanical methods such as clamps or custom print surfaces, and another calls adhesion challenging without a specialized surface [5][6].

We found no vendor sheet naming other surfaces, so follow your filament’s own sheet. Keep the filament dry as the sheet directs [1][2][4].

Safety: Heat, Fumes and Ventilation

Temperature and formaldehyde

An acetal safety data sheet reports heavy formaldehyde fuming above 230 °C (446 °F) [8].

Ensinger lists a 230 °C maximum melt temperature, and Gizmo Dorks says not to keep acetal above 230 °C [1] [4].

Vendors differ on how much gas printing produces: Gizmo says acetal may give off small amounts of formaldehyde, while Tarfuse says its filament does not emit toxic gases during printing [2] [4].The second is a manufacturer’s claim.

Exposure limits and controls

OSHA’s formaldehyde limits are 0.75 ppm (8-hour average) and 2 ppm (15-minute short-term) [9]. Vent the enclosure outdoors or through a documented gas phase filter, and do not use smell as your monitor.Stop and ventilate if material smokes or discolors.

See our guide Laser Cut Delrin for the full exposure table and facility-policy examples.

How Good Is a Printed POM Part?

3D Printed vs. molded and machined values

Property	Tarfuse POM NAT, printed (XY, ISO 527)	Delrin 150 NC010 resin (ISO 527)
Tensile strength	50 MPa	73.0 MPa (yield)
Tensile modulus	1,870 MPa	3,100 MPa
Elongation at break	11%	40 % (nominal strain at break)
Density	1.42 g/cm³	1.42 (shapes, Plastics International)

Sources: Tarfuse [2], Delrin 150 [10] [12]. This is not a like-for-like comparison: it mixes a copolymer printed part with homopolymer resin data.

As a rough scale, the printed modulus is about 60% and the strength about 68% of the Delrin 150 resin values (our arithmetic).

What this means for a design

Stiffness: a printed part deflects roughly 1.7 times as much as a part with Delrin 150 resin stiffness (3,100 ÷ 1,870), before any layer effects.
Layer direction: Tarfuse publishes XY values only [2]. Ask the maker for XZ and Z data before loading a part across layers.
Tolerance and finish: the sheets do not publish printed tolerance. Machining from stock lets you hold a drawing tolerance.
Size: Tarfuse is designed for parts up to 100 mm. Other vendors state no size limit [3].

Print, Machine or Order

Your situation	Start with	Why	Read next
One-off prototype, small, light load, enclosed printer	Print POM	Filament makers publish settings for this use [1] [2]	This guide
Need Delrin 150 stiffness, a held tolerance or certified stock	Machine from stock	Printed XY modulus is about 60% of Delrin 150 resin; ±0.005 in is a published standard machining tolerance [2] [10] [11]	Machining Delrin
Part larger than 100 mm	Machine	Tarfuse is designed for parts up to 100 mm [3]	Machining Delrin
Printed wear parts on an open or lower-temperature printer	Tribofilament	igus i150 prints with a 230 to 250 °C nozzle and a bed of 20 to 60 °C [13]	Alternatives below
High volume	Injection molding	Delrin molding grades are listed with their data in the grade table	Delrin guide
Food or drinking-water contact	Certified stock	Natural Delrin 150 shapes list FDA 21 CFR 177.2480 and NSF/ANSI 51 and 61 [15]	Delrin guide
Hot water, steam or chlorine	POM-C stock or filament	Copolymer holds up better [7]	Delrin vs. Acetal

Cost note. Retail snapshot, October 2026: Gizmo Dorks acetal filament $26.95 per kg [4], and Tarfuse POM NAT €44.95 per kg excluding VAT [16].

Filament price is only part of the cost of a printed part, so compare machine time and failed prints against a machining quote.

Machining Delrin Components for a Current Project?

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Alternatives for Printed Wear Parts

Material	Nozzle	Bed	Temperature and friction	Source
igus iglidur i150	230 to 250 °C	20 to 60 °C, or none with the igus adhesive	Long-term above 65 °C; designed for low friction and wear	[13]
igus iglidur i180	250 to 265 °C	90 to 110 °C	Long-term 100 °C; dynamic friction 0.17 against steel; closed chamber recommended	[14]

igus’s friction value (0.17) and Delrin’s (0.2) come from different tests, so do not rank them. Ask each maker for wear data at your pressure and speed.

FAQ

Can you 3D print Delrin?

You can print POM (acetal) filament. The filaments with published data are copolymer, and no filament from Delrin USA turned up in our search [1][2] [3].

What temperature do you print POM at?

It depends on the filament: nozzle 195 to 250 °C and bed 100 to 130 °C across the sources, so follow your filament’s sheet [1] [2] [4] [5][6]

Do you need an enclosed printer?

The sources that address it recommend an enclosure or heated chamber, with Tarfuse listing 70 to 140 °C [2] [4] [5][6].

Is printed POM as strong as machined Delrin?

No. Printed XY values from one maker are 50 MPa and 1,870 MPa, against 73 MPa and 3,100 MPa for Delrin 150 resin, with the copolymer and process caveats above [2] [10].

Is printing POM safe?

Keep the hotend below 230 °C, ventilate, and follow OSHA limits [8][9].

Related Guides

Sources

All sources last checked October 9, 2026. Settings are the makers’ indicative values, not guarantees.

Last Reviewed: October 2026

Usama Ayub

Usama Ayub is the founder of PlasticSpec and a polymer manufacturing engineer with eight years of hands-on industrial experience in PET, PA6, and PA66 fiber and filament yarn production. He writes material property and selection guides for Delrin, Nylon, PEEK, PTFE, UHMW, Polycarbonate, and ABS.