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Punchtec Ord Bot Hadron 3D Printer Review (Page 7)

By Charles Gantt on Apr 18, 2014 at 05:03 pm CDT - 1 min, 43 secs reading time for this page
Rating: 93%Manufacturer: Punchtec

Sphere and Complex Surface Quality

Creating a smooth sphere is a complex task for a 3D printer as its axes are positioned on a square frame. This means that the 3D printer must make minute changes in the X and Y axis multiple times per second to maintain a good spherical print. The same applies for surfaces that feature many different curves of varying degrees.

To test the printer's performance on these parameters, I have chosen two objects that have both spherical and complex curves. The Surface Finish Calibration Test and Female Statue Test are both designed to stress the printer's calibration as well as extrusion quality.

Punchtec Ord Bot Hadron 3D Printer Review 27 | TweakTown.com

The Surface Finish Calibration Test is one of my favorite objects to print when testing surface finish, spherical quality, and complex curves. Here you can see some seaming created by the print head starting at the same spot for every new layer. The additional flaws are derived from layers not having enough time to passively cool before the next layer is started. This is easily fixable by adding a simple fan to the extruder head. Overall, though, the surface quality is not that bad, and a few minutes with sandpaper would clean it right up.

Punchtec Ord Bot Hadron 3D Printer Review 28 | TweakTown.com

The female form is one of the most complex shapes in nature and includes a multitude of flowing curves and radiuses that can be really tough to print. Unfortunately, as with most PLA printers, cooling time between small layers is not long enough to prevent the distortion seen here. Again, a fan would really improve print quality here. I have printed this model several times in ABS and have not experienced this issue on anything but PLA.

Punchtec Ord Bot Hadron 3D Printer Review 29 | TweakTown.com

Another angle showing the backside of the model. You can see where the overhang became too great for the still soft plastic to retain its printed shape. You will see that this is not an issue on larger prints that have longer layer print times that allow the PLA to sufficiently cool before the next layer is started.

Last updated: Nov 15, 2019 at 01:16 pm CST

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Charles Gantt

ABOUT THE AUTHOR - Charles Gantt

A web developer by day, Charles comes to TweakTown after a short break from the Tech Journalism world. Formerly the Editor in Chief at TheBestCaseScenario, he now writes Maker and DIY content. Charles is a self proclaimed Maker of Things and is a major supporter of the Maker movement. In his free time, Charles likes to build just about anything, with past projects ranging from custom PC cooling control systems to 3D printers. Other expensive addictions include Photography, Astronomy and Home Automation.

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