Ohm/How to build an OHM

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Introduction

The Open Hybrid Mendel (OHM) has several advantages over the generic Mendel model. Mainly, it is more flexible. The extruder carriage and printing board are designed to easily pop off the machine without unscrewing any parts.

All STL files mentioned in this article are referring to, and can be downloaded from the OHM Parts section.

Mechanical Construction

Frame

Frame Triangles

Parts

To make the frame triangles, 6 frame vertices, 2 bar clamps and 6 threaded bolts are needed.

Frame Vertex part
Bar Clamp part

Assembly

Tips

Connecting the Triangles

Parts

Assembly

Tips

  • View of unfinished Y-axis

  • View of unfinished Y-axis

  • Finished Frame

X-Z Assembly

Z Drive System

OpenY Axis

Carriage

Extruder

This unfinished part includes the main driven gear, idler and lastly the main section.

  • Extruder part work in progress

Spool Arm

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