Do you test the products you recommend?

No, and we do not claim to. Every item here is chosen against a stated technical requirement, and every listing is confirmed live with real imagery before it is published. Where a figure is given it comes from the manufacturer, not from us. If that changes, first-party testing will be labelled as such.

Why are there no printer recommendations?

Because we have not tested one. What we can give you is the capability threshold each material actually needs: hot end temperature, bed temperature, whether a chamber is required and whether the nozzle has to be hardened. Match a machine against those and the shortlist writes itself.

How do you choose which products to list?

The requirement comes first. A tool appears only where a documented material or workshop step creates a genuine need for it, and only where a listing meets the stated specification. Commission plays no part in whether something is listed.

What if a product is discontinued?

The requirement above it still tells you what to buy, and a category search link stays available for every cluster. That is the reason the requirement is written first rather than as a footnote.

Gear that solves a specific problem.

Every item here exists because something documented on this site creates a real need for it. The requirement is written first and the product second, so the advice still works when a listing disappears.

We may earn a commission if you buy through this link, at no extra cost to you. It does not affect what appears here.

Measuring

Everything else on this page is guesswork without a number.

Digital calipers
Electronic digital caliper, 0-6 inch
Reads inch, millimetre and fraction, IP54 rated against workshop dust.
iGaging on AmazonListing verified 2026-08-30

Drying and storage

Moisture is the single most common cause of a print that looks tuned and still fails.

Airtight storage with rechargeable desiccant
Filament storage box with humidity monitor
Sealed box with a built-in humidity readout, so the storage can be verified.
YOOPAI on AmazonListing verified 2026-08-30
Rechargeable desiccant
Indicating silica gel, rechargeable
Changes colour when spent and recharges in an oven, so it is bought once.
Dry & Dry on AmazonListing verified 2026-08-30
Vacuum storage bags
Filament vacuum storage bags with pump
Sized for 1 kg spools generally, with no printer-brand fit claim.
Odilona on AmazonListing verified 2026-08-30
Hygrometer
Digital hygrometer
Small enough to sit inside a storage box, which is the only place the reading matters.
TempPro on AmazonListing verified 2026-08-30

Nozzles and cleaning

A worn or partly blocked nozzle produces symptoms people spend evenings blaming on settings.

Nozzle cleaning kit
Nozzle cleaning kit with needles
0.4mm needles plus tweezers, thinner than the bore so the nozzle is not scored.
Assorted on AmazonListing verified 2026-08-30
Spare brass nozzles
MK8 brass nozzle assortment
MK8 pattern in assorted sizes. Check MK8 matches your hot end before ordering.
XIFOWE on AmazonListing verified 2026-08-30
Hardened steel nozzle
Hardened steel nozzles, MK8
Hardened steel for abrasive filament. MK8 is a thread pattern, not a universal fit.
Creality on AmazonListing verified 2026-08-30

Build surface and adhesion

The first layer decides whether the print exists. Most adhesion failures are a dirty plate.

Isopropyl alcohol
Isopropyl alcohol, 99.9%, 32 oz
High purity, so it flashes off the plate instead of leaving a film of its own.
MaxTite on AmazonListing verified 2026-08-30
Glue stick
Build plate glue sticks, 6 pack
Washes off with water, which is the property that matters when it has to come back off the plate.
TEQStone on AmazonListing verified 2026-08-30

Finishing

Removing supports and layer lines without damaging the part is a tooling problem, not a slicer one.

Flush cutters
Diagonal flush cutters
Genuinely flush jaws, so a support is severed rather than torn away.
Klein Tools on AmazonListing verified 2026-08-30
Deburring tool
Deburring tool with spare blades
Pivoting blade head that follows an edge instead of gouging across it.
AFA Tooling on AmazonListing verified 2026-08-30
Needle file set
Needle file set
Assorted profiles for internal corners and printed holes sandpaper cannot reach.
Hi-Spec on AmazonListing verified 2026-08-30
Wet/dry sanding assortment
Wet/dry sandpaper assortment
120 through 3000 grit, wet/dry backing so PLA can be sanded without heat.
Assorted on AmazonListing verified 2026-08-30
Filler primer
Sandable filler primer, grey
One of the few filler primers whose own label names plastic alongside metal and wood.
Bartoline on AmazonListing verified 2026-08-30

Assembly and joining

Printed threads strip and printed joints peel. Both have specific answers.

Brass heat-set inserts
M3 brass heat-set inserts, 100 pieces
Publishes a recommended hole diameter, which is the number the whole job depends on.
ruthex on AmazonListing verified 2026-08-30
Soldering iron with insert tips
Digital soldering iron with insert tips
Temperature controlled with M2 to M8 insert tips, so the insert goes in square.
Mintion on AmazonListing verified 2026-08-30
Cyanoacrylate adhesive
CA glue and accelerator combo
Glue and accelerator together, which is what PETG and large bonded faces actually need.
Bob Smith Industries on AmazonListing verified 2026-08-30
Two-part epoxy
Clear 5-minute epoxy syringe, 25 ml
Twin syringe meters both parts evenly, and five minutes is enough to align a joint.
J-B Weld on AmazonListing verified 2026-08-30

Filament

Buying guidance for filament belongs with the settings, not on a list. Each material page carries what to check before ordering that specific material, the price band to expect, and where it is actually stocked.

All 31 materials

Printers

We do not name a printer, because we have not tested one and will not pretend otherwise. What we can give you is the threshold each tier of material actually demands. Match a machine against these and the shortlist writes itself.

01
A stock, open-frame printer
Unlocks 16 of the 31 materials here
Hot end to about 260°C and a bed to 90°C. No chamber.
For example: PLA, PETG, PETG-CF, PCTG, PLA Silk, PLA Matte
02
Add a hardened nozzle
Unlocks 9 filled and loaded compounds
Brass wears within a spool on anything with carbon, glass, metal, wood or phosphor in it. The nozzle is the cheapest upgrade on this list.
For example: PA-CF, PETG-CF, PLA Wood, PLA Metal, PLA-CF, PA-GF
03
Add an enclosure
Unlocks 13 materials that warp without still, warm air
Hot end to 420°C and a bed to 180°C for the full set. Most of them are reachable well below that.
For example: ABS, ASA, PC, PEEK, Nylon PA6, Nylon PA12

Common questions

Do you test the products you recommend?: No, and we do not claim to. Every item here is chosen against a stated technical requirement, and every listing is confirmed live with real imagery before it is published. Where a figure is given it comes from the manufacturer, not from us. If that changes, first-party testing will be labelled as such.
Why are there no printer recommendations?: Because we have not tested one. What we can give you is the capability threshold each material actually needs: hot end temperature, bed temperature, whether a chamber is required and whether the nozzle has to be hardened. Match a machine against those and the shortlist writes itself.
How do you choose which products to list?: The requirement comes first. A tool appears only where a documented material or workshop step creates a genuine need for it, and only where a listing meets the stated specification. Commission plays no part in whether something is listed.
What if a product is discontinued?: The requirement above it still tells you what to buy, and a category search link stays available for every cluster. That is the reason the requirement is written first rather than as a footnote.