Parametric Mount for Berd Air MAX
thingiverse
Here's a simple OpenSCAD-based mount for the large motor used in the [Berd-Air MAX system](http://www.themakerhive.com/shop/viewitem.php?productid=45). As opposed to the mount published by MakerHive, which seems to be optimized for aluminum extrusion-based frames, this mount is intended for Prusa i3-style or boxy CoreXY printers with frames built out of flat materials. The motor is held in place with a strip of double-sided velcro (a few zip-ties are too puny to handle this gigantic motor), which is threaded through the channel in the mount. The mount itself is attached to the frame with friction and a screw (I drilled a hole into the frame using the mount itself as a guide). The default settings are for a 1/4" frame, Velcro-brand velcro and an M3 screw, but everything can be adjusted according to whatever is on hand. If you have a printer that is tough to drill into (or you don't want to void warranties), just decrease your measured board thickness by about 0.5 mm to get a tight friction fit instead. **A note about the motor** If MakerHive is out of the motors again, the ones on Banggood are identical ([here's a link](https://www.banggood.com/12V-DC-Diaphragm-Vacuum-Pump-Air-pump-High-Pressure-Micro-Vacuum-Pump-p-1046082.html)). Be careful about attaching the motor directly to your fan output, as this thing draws an *incredible* amount of current, and most controller boards can't handle that much power from their fan outputs. (A typical fan draws no more than 500 mA, this beast draws almost 1.5 A!) If you want to use it on a normal 12V setup, you'll need an external MOSFET board with an optocoupler, such as the one made by MKS or MakerHive themselves. Also, this thing is *loud*, so I would recommend sticking a piece of thin rubber or foam between the motor and the mount to dampen the noise a bit.
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