Category: Tested Gear

Hands-on product tests and practical tech recommendations from Ben at ThatGermanGuy.

  • 3D Printer Filaments I Have Tested: Reliable PLA & PETG Picks

    3D Printer Filaments I Have Tested: Reliable PLA & PETG Picks

    One growing hands-on filament database

    3D Printer Filaments I Have Tested: Reliable PLA & PETG Picks

    The PLA, PETG and silk filaments that printed well for me – collected on one practical page instead of stretched into separate reviews.

    Tested by BenUpdated August 30, 2026Tested Gear3D Printing
    Affiliate disclosure: As an Amazon Associate, ThatGermanGuy earns from qualifying purchases. If you buy through a product link, the commission does not add to your price and does not change the findings in this hands-on collection.
    Colourful 3D-printer filament spools with an FDM printer in a workshop
    The short version

    Every filament listed here has worked well in my own printing. I found them easy to print, the finished quality and detail were good, and I did not encounter problematic stringing or moisture-related trouble during my tests. They also offered good value for the results.

    This is an evergreen collection rather than a series of near-identical individual reviews. Whenever I test another filament successfully, it can be added to the database below with its material, colour, pack information and current Amazon link.

    Results always depend on the printer, slicer profile, storage, ambient humidity and model geometry. My positive experience is a practical reference, not a guarantee that every spool will behave identically in every setup.

    9Product families
    13Tested links
    4Material filters
    100%Hands-on listed

    My tested filament database

    Use the material buttons or search by brand, product or colour. Amazon listings can change their selected colour or bundle, so check the final variation before ordering.

    Showing 9 of 9 product families
    CrealityPLA

    Ender PLA 2-Pack

    Colour / variant
    Black and Black
    Pack
    2kg total
    Amazon ASIN
    B0CHJK57NW
    My resultEasy to print, good detail and finish, no problematic stringing or moisture issue in my use, and good value.
    OVERTUREPLA

    Easy PLA

    Colour / variant
    Amazon currently shows Easy Orange
    Pack
    1kg per spool
    Amazon ASIN
    B0CRB1FCC4
    My resultEasy to print, good detail and finish, no problematic stringing or moisture issue in my use, and good value.

    Five supplied links currently open the same OVERTURE product family; all are retained here as tested variants.

    eSUNPETG

    Basic PETG

    Colour / variant
    Black
    Pack
    1kg
    Amazon ASIN
    B0DDTFL214
    My resultEasy to print, good detail and finish, no problematic stringing or moisture issue in my use, and good value.
    OVERTURESilk PLA

    Silk PLA

    Colour / variant
    Metallic Silk Gold
    Pack
    1kg
    Amazon ASIN
    B09634KSYJ
    My resultEasy to print, good detail and finish, no problematic stringing or moisture issue in my use, and good value.
    eSUNPLA

    PLA

    Colour / variant
    Black
    Pack
    1kg
    Amazon ASIN
    B0BWMLQHLB
    My resultEasy to print, good detail and finish, no problematic stringing or moisture issue in my use, and good value.
    3DHoJorPLA

    Basic PLA

    Colour / variant
    Grey
    Pack
    1kg
    Amazon ASIN
    B0D3LSDPT5
    My resultEasy to print, good detail and finish, no problematic stringing or moisture issue in my use, and good value.
    eSUNPLA+

    PLA+ 2-Pack

    Colour / variant
    Cold White and Cold White
    Pack
    2kg total
    Amazon ASIN
    B09Q5YJ5HZ
    My resultEasy to print, good detail and finish, no problematic stringing or moisture issue in my use, and good value.
    SOVOLSilk PLA

    Silk Tri-Colour PLA

    Colour / variant
    Rose, Blue and Yellow
    Pack
    1kg
    Amazon ASIN
    B0C6Z63S9V
    My resultEasy to print, good detail and finish, no problematic stringing or moisture issue in my use, and good value.
    SOVOLSilk PLA

    Silk Tri-Colour Coextrusion PLA

    Colour / variant
    3-in-1 multicolour variant
    Pack
    Check current listing
    Amazon ASIN
    B0C37H3J2F
    My resultEasy to print, good detail and finish, no problematic stringing or moisture issue in my use, and good value.

    What they had in common in my tests

    Consistent positives

    • Easy and uncomplicated printing
    • Good finished print quality
    • Details reproduced cleanly
    • No troublesome stringing in my use
    • No moisture-related problem during testing
    • Good price-to-performance ratio

    What still varies

    • PLA, PLA+, PETG and silk PLA need different profiles
    • Colour and bundle selection can change on Amazon
    • Storage conditions affect long-term behaviour
    • Printer and slicer settings influence the final result

    PLA, PETG or silk PLA?

    Standard PLA is the straightforward everyday choice in this collection. I use it when easy printing and a clean result matter more than high heat resistance. PLA+ variants aim for extra toughness while remaining approachable.

    PETG is useful when a part needs more toughness or temperature resistance than basic PLA, although the correct temperature and retraction settings matter. Silk PLA is mainly about appearance: the metallic and multicolour finishes can make decorative prints stand out.

    Storage tip: My listed spools did not give me moisture problems, but that does not make filament immune to humidity. Store opened rolls sealed with desiccant and dry a spool when surface quality, popping sounds or stringing suddenly deteriorate.

    How to use this list

    Choose the material type your model needs, then check colour, pack size and the exact Amazon variation. The same Amazon product page may switch its default colour over time. Start with the temperature range printed on the spool or supplied by the manufacturer, then use a small calibration print for your machine.

    The five supplied OVERTURE Easy PLA links currently resolve to the same product family. I have retained every link inside that one database record rather than pretending they are five unrelated products.

    Frequently asked questions

    Did I personally print every filament on this page?

    Yes. This collection is specifically for filaments I have used and found good in practice.

    Did I have stringing or moisture problems?

    I did not encounter problematic stringing or moisture-related trouble with these filaments during my tests. Different storage, humidity, printers and settings can produce different results.

    Why are there no separate reviews for every spool?

    The core findings were very similar, so one searchable, growing database is more useful and honest than repeating the same article for each colour or brand.

    Will more filaments be added?

    Yes. When I test another filament successfully, its product details and link can be added to this page.

    Are all links affiliate links?

    Product links may be Amazon affiliate links. ThatGermanGuy may earn a commission from qualifying purchases at no extra cost to you.

    BG
    Tested by Ben at ThatGermanGuy

    A growing database based on real prints. Hands-on findings are separated from retailer product names and specifications.

    (c) 2026 ThatGermanGuy | Toowong & Brisbane Inner West, Queensland | Tested Gear | Blog | Privacy | Imprint | Disclaimer
  • ATOMSTACK A5 Pro V2 5W Review: Good Results, Simple Setup

    ATOMSTACK A5 Pro V2 5W Review: Good Results, Simple Setup

    Hands-on maker-tool test

    ATOMSTACK A5 Pro V2 5W Review: Good Results, Simple Setup

    An approachable 5W diode laser that produced good detail on wood, leather and coated aluminium cards, with a straightforward setup and one weaker point: the AtomStack app.

    Tested by BenAugust 30, 2026Tested GearLaser Engraving
    Affiliate disclosure: As an Amazon Associate, ThatGermanGuy earns from qualifying purchases. If you buy through the product link, the commission does not add to your price and does not change the findings in this hands-on review.
    ATOMSTACK A5 Pro V2 5W open-frame laser engraver and example projects
    The short version

    I am happy with the ATOMSTACK A5 Pro V2 5W. Assembly was simple, operation was easy and the laser produced good-quality results with clear detail on the materials I tested: wood, leather and coated aluminium cards. The AtomStack app works, but it is the part of the experience I would most like to see improved.

    A small diode laser should make it easy to move from an idea to a finished engraving without turning setup into the main project. The A5 Pro V2 did that well for me. The frame was uncomplicated to assemble, the controls were approachable and I was able to start testing different materials without a steep learning curve.

    My findings here come from actual engraving work rather than a theoretical feature comparison. I focused on the things that matter after the box is opened: how easily it goes together, how it behaves with common materials and whether fine details remain readable.

    AssemblySimple
    Laser qualityGood
    Fine detailClear
    AtomStack appCould improve

    Simple assembly and easy first use

    The initial build was straightforward. Once the frame was assembled and the laser was ready, the basic workflow was easy to understand. That matters for a first engraver because even a capable machine becomes frustrating if every small job requires troubleshooting.

    I found the A5 Pro V2 easy to operate overall. Preparing a design, positioning the material and running an engraving felt manageable rather than overly technical.

    Results on wood, leather and coated aluminium cards

    I tested three different surfaces: wood, leather and coated aluminium cards. The laser gave me good results across all three, and fine details came through well when the settings suited the material.

    Wood is an obvious starting point for signs, decorations and layered projects. Leather is useful for tags, patches or personalised accessories. Coated aluminium cards are a good detail test because the laser removes or changes the coating to reveal the design rather than cutting into solid metal.

    What I liked

    • Simple, uncomplicated assembly
    • Good laser and engraving quality
    • Fine details reproduced well
    • Easy day-to-day operation
    • Successful tests on wood
    • Good results on leather
    • Clean detail on coated aluminium cards

    What could be better

    • The AtomStack app is not as polished as the hardware
    • The interface and workflow could feel more intuitive
    • I would like a smoother overall app experience

    Laser quality and detail

    The engraving quality is the strongest part of the A5 Pro V2 in my experience. Lines and small features were rendered cleanly enough for the projects I tried, giving the finished pieces a precise rather than rough appearance.

    As with any diode laser, the result still depends on focus, speed, power and the exact material. A small material test grid is worth doing before committing to a finished piece, especially when working with a new wood species, leather finish or coated card.

    The AtomStack app is usable, but not great

    The app did not ruin the experience, but it is the weakest part of the package for me. It gets the job done, yet the interface and workflow could be more polished and easier to navigate.

    ATOMSTACK also provides software resources for AtomStack Studio and documents LightBurn and LaserGRBL in its software guide. Which option is best depends on the computer, connection method and workflow, so buyers who find the mobile app limiting have alternatives to investigate.

    Current listing and manufacturer information

    The current Amazon Australia listing identifies this model as the ATOMSTACK A5 Pro V2 with a 5W laser, a listed 400 x 400mm working area and a 0.06 x 0.08mm laser spot. It also advertises broad software compatibility. ATOMSTACK’s own support pages continue to list the A5 Pro in its A5-series machine guide and provide documentation for AtomStack Studio, LightBurn and LaserGRBL. These are listing and manufacturer details; the material results and app opinion above are my hands-on findings.

    ProductATOMSTACK A5 Pro V2 5W Laser Engraver & Cutter
    Laser output5W diode laser (current Amazon listing)
    Listed working area400 x 400mm
    Listed laser spot0.06 x 0.08mm
    Hands-on materialsWood, leather and coated aluminium cards
    Software resourcesAtomStack Studio, LightBurn and LaserGRBL
    Amazon ASINB0H1KYZXGY

    Laser safety matters

    Important: This is an open-frame laser engraver, not a harmless desktop printer. Use suitable certified eye protection and preferably a compatible protective enclosure, provide effective smoke extraction or ventilation, keep a suitable fire extinguisher nearby and never leave the laser operating unattended. Verify every material before engraving; some plastics and coatings can release dangerous fumes or damage the machine. Follow the current manufacturer instructions and local safety requirements.

    Do not assume that a visible shield on the laser head replaces proper workspace controls. Fire risk, reflected laser light and fumes all need to be considered before the first project.

    Who is it for?

    The A5 Pro V2 is a good fit for makers who want an approachable entry point for engraving wood, leather and suitable coated surfaces. Its straightforward assembly and good detail make it useful for personalised gifts, labels, cards, decorative pieces and hobby projects.

    It is less suitable for someone expecting a completely enclosed, plug-and-play appliance or relying only on a highly polished mobile app. A safe workspace and willingness to test settings are still essential.

    My verdict

    Overall, I am satisfied with the ATOMSTACK A5 Pro V2 5W. It was easy to assemble and use, the laser quality is good, and the detail on wood, leather and coated aluminium cards impressed me. The app could be better, but it does not outweigh the solid hardware and good engraving results.

    Check the current Amazon price

    Prices, bundles and model variations can change. Confirm that the listing shows the A5 Pro V2 5W and check exactly which accessories are included before ordering.

    View on Amazon Australia

    Frequently asked questions

    Is the ATOMSTACK A5 Pro V2 easy to assemble?

    In my experience, yes. The initial build was straightforward and I found the machine easy to start using.

    Which materials did I test?

    I tested wood, leather and coated aluminium cards. All three produced good results, with clear details when the settings matched the material.

    Can a 5W diode laser engrave aluminium cards?

    It can engrave suitable coated aluminium cards by marking or removing the coating. That is different from cutting or deeply engraving bare aluminium, so check the exact material before use.

    Is the AtomStack app good?

    It works, but I do not think it is great. The interface and workflow could be more polished. ATOMSTACK also publishes resources for desktop software options.

    Do I need ventilation and an enclosure?

    A safe laser workspace needs effective fume control, suitable eye protection and active fire precautions. A compatible enclosure and extraction setup are strongly advisable for an open-frame engraver.

    BG
    Tested by Ben at ThatGermanGuy

    Hands-on with wood, leather and coated aluminium cards. Practical findings are clearly separated from listing and manufacturer specifications.

    (c) 2026 ThatGermanGuy | Toowong & Brisbane Inner West, Queensland | Tested Gear | Blog | Privacy | Imprint | Disclaimer
  • KEEN Seacamp II CNX Kids’ Sandals Review: Prep & Kindy Favourite

    KEEN Seacamp II CNX Kids’ Sandals Review: Prep & Kindy Favourite

    Family-tested for Prep and Kindy

    KEEN Seacamp II CNX Kids’ Sandals Review: Prep & Kindy Favourite

    Breathable black school sandals that are easy for children to put on, give reassuring support and keep going through everyday Prep and Kindy use.

    Tested by Ben and SebastianAugust 30, 2026Tested GearKids Footwear
    Affiliate disclosure: As an Amazon Associate, ThatGermanGuy earns from qualifying purchases. If you buy through the product link, the commission does not add to your price and does not change the findings in this hands-on review.
    Black KEEN Seacamp II CNX kids sandal reviewed for Prep and Kindy
    The short version

    The KEEN Seacamp II CNX has been an excellent Prep and Kindy shoe for us. Sebastian’s feet do not get too hot, the sandals are easy to put on, they give him good hold and a stable, supportive base, and they last a very long time. Most importantly, Sebastian loves wearing them.

    Children’s school shoes need to work for much more than walking into the classroom. They face running, climbing, playground dirt and long days, while still needing to be comfortable enough that a child actually wants to wear them.

    In our everyday experience, the KEEN Seacamp II CNX handles that combination extremely well. The black design looks neat enough for many school settings, but the open webbing keeps it more breathable than a fully enclosed black school shoe.

    ComfortBreathable
    IndependenceEasy on
    SupportStable
    DurabilityLong-lasting

    Why they work so well for Prep and Kindy

    The balance between openness and protection is the main reason these shoes work for us. Air can move around the foot, so Sebastian’s feet do not become as hot as they can in a conventional closed shoe. At the same time, the front remains covered and the shoe holds the foot securely.

    That makes the Seacamp II CNX practical for a Queensland school day: it feels more like a breathable sandal, but provides more structure and protection than a completely open sandal.

    Easy for children to put on

    The quick-cinch elastic lacing and hook-and-loop strap make the shoe simple to open, slip on and secure. Sebastian can get into them without dealing with traditional shoelaces, while the strap still gives a reassuringly firm fit.

    For busy mornings and the independence children are encouraged to develop at Kindy and Prep, that straightforward on-and-off design is genuinely useful.

    What we like

    • Feet do not get too hot in our experience
    • Good hold for active play
    • Easy for a child to put on
    • Stable and supportive footbed
    • Very durable in everyday use
    • Black design suits many school uniforms
    • Sebastian loves wearing them

    What to check before buying

    • Every school’s uniform policy is different
    • Choose the exact size and colour variation carefully
    • Fit is personal, especially for growing feet

    Support and durability in everyday use

    The Seacamp II CNX gives Sebastian good hold when he is moving around, and the footbed feels stable rather than soft and unsupportive. KEEN lists an EVA insole with arch support; our practical observation is simply that the shoe provides a secure, stable base for his normal school and playground activities.

    Durability has also been excellent. These shoes last a long time despite the kind of daily treatment children’s footwear receives. That matters because a cheaper shoe is not good value if it quickly loses its shape or needs replacing.

    Do schools allow black KEEN sandals?

    In our experience, many schools with a uniform accept this type of black shoe for Prep or Kindy. The mostly black appearance is understated and can work well with a school uniform.

    However, this is not a universal rule. Some schools require fully enclosed leather shoes or specify an exact style. Check your own school’s current uniform policy before ordering, especially if you plan to use the Seacamp II CNX as the main school shoe.

    Manufacturer-listed features

    KEEN describes the Seacamp II CNX as a lighter, more flexible version of its hybrid water sandal. The Australian product information lists a low-profile CNX rubber outsole, toe protection, a hook-and-loop strap, a secure lace-capture system, multi-directional traction and an EVA insole with arch support. It also lists washable polyester webbing and a hydrophobic mesh lining. These are manufacturer details; the comfort, school use and durability findings above come from our family experience.

    ProductKEEN Seacamp II CNX Kids’ Sandals
    Tested usePrep, Kindy and everyday active wear
    ClosureQuick-cinch elastic lacing and hook-and-loop strap
    UpperWashable polyester webbing (manufacturer-listed)
    LiningHydrophobic mesh (manufacturer-listed)
    FootbedEVA insole with arch support (manufacturer-listed)
    OutsoleNon-marking rubber with multi-directional traction
    Amazon ASINB0F2FB539Q
    Size and uniform tip: Amazon listings can switch between children’s sizes and colour variants. Confirm the selected size, black colour and your school’s footwear rules before completing the order.

    Who are they for?

    These are a strong choice for active Prep and Kindy children who need breathable footwear, easy fastening, good grip and more toe protection than an open sandal. They also suit families looking for one durable shoe that can move between school, playground and weekend use.

    Children who must wear a fully enclosed formal school shoe will need a different option. Fit also varies between children, so the correct size matters more than any general recommendation.

    Our verdict

    The KEEN Seacamp II CNX has been a superb school and Kindy shoe for Sebastian. It stays relatively cool, is easy to put on, provides good hold and a stable footbed, and has lasted very well. The best endorsement is the simplest one: Sebastian loves these shoes.

    Check sizes and the current Amazon price

    Sizes, colours, prices and availability can change. Check that Amazon shows the correct black Seacamp II CNX variation before ordering.

    View on Amazon Australia

    Frequently asked questions

    Are the KEEN Seacamp II CNX sandals good for Prep and Kindy?

    They have been excellent for Sebastian. They are breathable, supportive, easy to put on and durable enough for everyday school and playground use.

    Do children’s feet get hot in them?

    In our experience, Sebastian’s feet do not get too hot. The webbing design is much more open than a conventional fully enclosed school shoe.

    Can children put them on themselves?

    The elastic quick-cinch lacing and hook-and-loop strap make them simple to put on and secure without tying conventional laces.

    Are black KEEN sandals allowed with a school uniform?

    Many schools accept black footwear like this, based on our experience, but policies differ. Always check your own school’s current uniform requirements before buying.

    Are they washable?

    Yes. KEEN lists the Seacamp II CNX water sandals as machine washable on a gentle cycle, followed by air drying. Follow the care instructions supplied with your exact pair.

    BG
    Tested by Ben and Sebastian

    Family-tested through real Prep and Kindy use. Our experience is clearly separated from manufacturer specifications.

    (c) 2026 ThatGermanGuy | Toowong & Brisbane Inner West, Queensland | Tested Gear | Blog | Privacy | Imprint | Disclaimer