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BQ Hephestos 2 (kit)

BQ Hephestos 2 (kit)

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4 reviews

  • info

    4 years ago

    WISO?

    So the BQ Hephestos 2 is basically just a copy of the Prusa i3. To be honest, order an i3 directly from Prusa. it costs half the price, prints better, has a heated print bed, autoleveling and gets regular upgrades and updates. Save your money and invest in filament and nozzles instead :-D
     

  • Chuckonelli

    6 years ago •
    purchased this product

    Good approaches, nice design, but the price-performance ratio is no longer right by current standards. Only suitable for PLA without heating bed

    I have owned this printer for a short time and have been able to print for just under 30 hours so far. Of a total of 66 print attempts, 19 have been completed. This means that 47 print attempts had to be aborted (statistics from BQ menu), which brings me to the most important point of my evaluation.
    The printer is no longer usable in conjunction with the heating bed upgrade from BQ, as the heat from the heating bed affects the distance sensor to such an extent that the print either starts too far from the heating bed or the nozzle collides with the glass plate. The Z-offset can be recalibrated before each print and still the repeatability with the original sensor is poor. In the standard version, i.e. without a heating bed, the calibration usually works without problems, but the PLA does not adhere to the glass plate without adhesive. This means that BlueTape or similar must be used and the material to be printed is therefore limited to PLA. The price-performance ratio is therefore, despite high-quality materials (Hiwin guides, aluminium milled parts, etc.), not coherent.

    I recommend this printer only for people who are looking for an aesthetic 3D printer with a learning effect and who are familiar with the programming of Marlin firmware, as the original BQ firmware has, in my view, been rather negatively adapted. However, the open source platform makes it possible to change to the standard firmware (I have not done this due to the possible loss of warranty, so no guarantee).     

    Pro

    • Clean print quality (If the print has started clean)
    • Easy assembly (clear step-by-step instructions)
    • Learning effects during assembly
    • High quality guided tours

    Contra

    • Very unstable in the basic construction (frame construction vibrates when changing direction quickly)
    • Very thin threaded spindle in the Z-axis (M5, vibrates during operation)
    • Sensor does not work in conjunction with the BQ heating bed
    • Rather loud in operation (BQ firmware)
    • Speed limited due to construction (Y-method with heating bed)
    • Filament holder turns ''heavy'', extruder has to pull filament too much in my opinion
  • stonecoldfx

    7 years ago •
    purchased this product

    Definitely not a bad choice as a first printer. You learn a lot during assembly. In terms of price, the printer is rather expensive. Of course, almost only high-quality materials are used.

    I have owned this printer for almost 4 months now (my first printer) and have about 1250h of printing time so far. Therefore, my review is relatively informative.

    Basically, the Hephestos 2 is not a bad printer as an     entry-level model.

    BQ tries to make the printer palatable for users with a simple operation (extremely modified Marlin firmware on the part of BQ). In my case, this is rather counterproductive, as many functions that are available in the vanilla Marlin firmware do not work properly.

    In the meantime I have installed the Vanilla Marlin firmware (version 1.14) and have to say that the printer is automatically 30-40% quieter (at the same print speeds, acceleration and jerk values).

    The component fan can also finally be controlled infinitely via PWM software.

    CONCLUSION after 1200h+!!!

    -I have already had 3 cable breaks (thermistor, extruder motor, extruder fan).
    With my kit, the cables in the guide armour chain (is that how it's called? :D) were probably not laid properly, resulting in greater friction etc.
    greater friction etc... (I replaced the cables myself, of course).

    -The original printer heating bed also gave up the ghost after 1200 hours. The problem was solved by using another
    and themeistor input incl. new cabling and use of a DC DC SSR. Since the electronics on the additional print of the heating bed or on the mainboard itself must have a
    has a shot.




    FilamentBox at www.thingiverse.com/thing:2119644 from spannerhands     

    Pro

    • Super extruder thanks to DoubleDrive Gear, this is the printer for flexible filaments.
    • Hiwin linear bearings for the Z and X axis!!!
    • Perfectly flat crystal glass print bed with quick release!!!
    • Very good print quality with perfectly set parameters/mechanics

    Contra

    • Extruder holding plate and motor holding plate do not have a 90° angle and must be reworked
    • The main frame of the printer is very unstable. Needs to be strengthened. (see picture)
    • Filament roll holder rather not to be used. Better to use an external PTFE tube (see picture).
    • Assembly certainly more than 2h, more like 4-6h (unless you already have experience with 3D printers).
    • The modified Marlin firmware looks nice on the LCD, but could be better.
    • Very loud with the original BQ firmware
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