This is the HevORT IDEX, a remix of the HevORT 3D printer.

This remix aimed at providing a cost-effective and relatively easy-to-build, rigid Idex printer, with the added benefits of being based on a high-performance machine, fulfilling all the dual extrusion needs one might have.

To make all this possible, a few things had to change compared to the original HevORT:

• Completely redesigned X/Y Gantry to allow for individual extruder motion
• Switch to a cartesian style X/Y gantry
• Re-design of the printing bed to account for the added depth and width within the build chamber

Compared to the 315x315x315 mm build volume version of the HevORT, the HevORT IDEX has a build volume of 280x315x315 mm, while only adding 60 mm in depth and 87 mm in width to the overall footprint. Of course, like the original, the HevORT IDEX is also completely scalable.

Specs:

• 280x315x315 mm build volume (scaleable)
• 737x540x880 mm footprint (scaleable)
• rigid 3030 extrusion frame
• dual motor Y-axis
• dual motor X-axis (one for each extruder)
• triple motor Z-axis, enabling auto bed leveling and possibly non-planar printing in the future
• EVA 2 compatible gantry, providing lots of different options for extruders and hotends
• optical end-switches for each extruder and the Y-axis
• total of 9 stepper motors required

I highly recommend using stepper motors which can withstand higher temperatures when enclosing this printer!

As this is still a work in progress, some parts of the design might change as well as some new parts being added to the project.

Additional information:

The names of the .STL files indicate the number of times that part is needed for the build.

The print bed parts are direct replacements for the original HevORT, the rest of the original bed assembly can still be used.

To complete the build you will also need the entire ZR V2.5 available on the HevORT website and the Idex1 and Idex2 carriages on the EVA 2 website.

BOM:

Bed Installation:

Hardware:

• M5x10 Button Head Screw: 28
• M5 2020 T-Nut: 28
• M4x45 Flat Head: 4
• M3x10 Cap Screw: 12
• M3x8 Cap Screw: 12
• M6x14 Button Head Screw: 1
• M4 Nut: 4
• M3 Nut: 12
• Bed Spring 20mm: 4
• MGN12H 150mm + Carriage: 3
• RodEnd, POS08: 3

Printed:

• BedPlateInnerBraquet FR: 1
• BedPlateInnerBraquet FL: 1
• BedPlateMount_RL: 1
• BedPlateMount_RR: 1
• Z_Bed_Arm_RodEndSupport_FL (original HevORT Part) :1
• Z_Bed_Arm_RodEndSupport_FR (original HevORT Part) :1
• Z_Bed_Arm_RodEndSupport_RR (original HevORT Part) :1
• ZR_BedRailSupport_RR (original HevORT Part) :1
• ZR-BedPlateMount_FL (original HevORT Part): 1
• ZR-BedPlateMount_FR (original HevORT Part): 1

X/Y Gantry:

Hardware:

• M6x12 Cap Screw: 24
• M5x55 Cap Screw: 1
• M5x30 Cap Screw: 4
• M5x25 Cap Screw: 2
• M5x24 Cap Screw: 1
• M3x25 Cap Screw: 4
• M3x20 Cap Screw: 6
• M3x14 Cap Screw: 2
• M3x12 Cap Screw: 20
• M3x10 Cap Screw: 8
• M3x8 Cap Screw: 4
• M6 3030 T-Nut: 24
• M5 Nut: 8
• M3 Nut: 8
• M3 Heated Inserts: 16
• Gates GT2 Pulley 20T Smooth Idler for 6mm Belt: 4
• Gates GT2 Timing Pulley 20T for 6mm Belt: 4
• MGN12H 356mm rail with one carriage: 2
• MGN12H 400mm rail with two carriages: 1
• EVA 2 IDEX 1 Carriage: 1
• EVA 2 IDEX 2 Carriage: 1

Printed:

• Anti Ooze Bar Mount Bot Left: 1
• Anti Ooze Bar Mount Bot Right: 1
• Anti Ooze Bar Mount Top Left: 1
• Anti Ooze Bar Mount Top Right: 1
• Belt Holder: 4
• Belt Idler Mount Left: 1
• Belt Idler Mount Right: 1
• Belt Pulley: 2
• Endstop Mount Y-Axis: 1
• Gantry Left: 1
• Gantry Right: 1
• Optc. Sw. Tr. Left: 1
• Optc. Sw. Tr. Right: 1
• Y Motor Mount Left:1
• Y Motor Mount Right:1
• HTCarbonX InnerBlock (original HevORT part): 2

Frame:

• 3030 Extrusion 880mm: 6
• 3030 Extrusion 480mm: 8
• 3030 Extrusion 510mm: 3
• 3030 Extrusion 507mm: 5
• 3030 Extrusion 140mm: 4
• 2020 Extrusion 390mm: 2
• 2020 Extrusion 357mm: 2
• M6x12 Button Head Screw: 110 (includes some spares just in case)
• M6 T-Slot Nuts (for 3030 profile): 110 (includes some spares just in case)
• 3030 Internal L-Joint (including screws): 26
• 3030 Double Corner Bracket: 26

Obviously, the extrusion lengths are scaleable, just like the build volume.

Using blind joints as much as possible is definitely recommended. Also, connectors like these are advisable too: https://aluprofile24.de/product_info.php?info=p260_formverbinder-nut-8-inkl--nutenstein.html

For more information on the original HevORT visit: HevORT.com

Updates:

Update 29.07.2021: Modified the mounting for the belt holders as well as modifying the smooth pulley idler mounting on the right gantry for added rigidity and easier installation.