Haeckel

Haeckel Documentation

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Haeckel

Release status: working

Description	Haeckel is a variation of MendelMax.
License	GPL
Author	User:mattgolt
Contributors
Based-on	MendelMax
Categories
CAD Models
External Link

Introduction

The RepRap Haeckel is an open source 3D printer that uses fused deposition modeling (FDM).

Ernst Heinrich Philipp August Haeckel (* 16. February 1834, † 9. August 1919) was a German biologist who promoted and popularized Charles Darwin's work in Germany.

The Reprap Haeckel is based on a generic Mendel. Its goal is to be a self contained unit, that can easily be upgrade to have a Heated Build Chamber. The idea is to have a very rigid frame and x assembly that can withstand light milling, such as PCB Milling or wood engraving. The Haeckel has two integrated spool holder, each holds up to 4 filament spools (9cm wide each).

Specifications

• Printed Parts:
• Non-Printed Parts:
• Material Cost: 500€~
• Cost: not for sale, yet
• Printing Size: 200mm x 200mm x 350mm (can be extended)
• Precision: ??? (position), ??? (printing)
• Speed: ??? (position), ??? (printing)
• Footprint: 470mm x 470mm x 570mm

Frame Parts

Quantity	Length	Part Type	Used Where	Comment	Looks like
2	550mm	20x20mm aluminum extrusion		back struts. The spool holders get attached to these, depending on your filament spool diameter, you might want to use longer back struts.
2	420mm	20x20mm aluminum extrusion		front struts
12	430mm	20x20mm aluminum extrusion		rest of the frame
2	270mm	20x20mm aluminum extrusion		spool holders. can be extended or shortened
2	90mm	20x20mm aluminum extrusion		Needed for x end and x idler. Soon to be available fully printed. Minimum length is 90mm. Can be up to 410mm (not recommended).	unfinished x assembly

Smooth rods

Part	Used Where	Quantity	Length.	Comment	Looks like
X-smooth rods		2	370mm	Can without problems be longer than recommended minimum lengths. Length shouldnt exceed 390mm.	Y smooth rods
Y-smooth rods		2	430mm	These lengths can not be longer. 5mm shorter will still be okay, but 1mm longer can not be mounted	Y smooth rods
Z-smooth rods		4	370mm	Can without problems be longer than recommended minimum lengths.Length shouldnt exceed 390mm	Z smooth rods

Printed parts

Quantity	Part Name	Used Where	Comment	Looks like	File Download
2	90_innerCorner.stl
4	CornerPiece_small.stl		These needed to be cut to size on the original build as they were falsely planned. There is an updated .stl for the small version now. You need to have small corners on the lower corners, or the lower extrusions won't have the correct distance of 50mm.
2	CornerPiece.stl
1	Y_motor_mount.stl
4	Extrusion_three_way_connector.stl

Front Frame Assembly

This chapter shows how to assemble the front rectangle of the Haeckel's frame. You'll need:

• 2x 420mm Extrusions
• 3x 430mm Extrusions
• 1x y_motor_mount.stl
• 2x y_rod_clamp.stl
• 2x three_way_connector
• 2x corner_small.stl
• 2x corner.stl

1. Overview	2. Begin by sliding a three way connector on a 420mm extrusion
3. Slide the connector down and tighten it	4. Take a small corner and attach it
5. Take a second small corner and attach it to the other side. Repeat Steps 2 - 5. You should now have two of these front struts.	6. Attach one 430mm Extrusion to one of the three way connectors. Attach Y-Motor mount and two bar clamps as pictured.
7. Attach the other strut to the horizontal bar. Make sure the Motormount and bar clamps are correctly attached. You will not be able to insert nuts into the t-slot afterwards	8. Take two 430mm extrusions and attach them to the top and bottom corners. The motor mount gets attatched to the bottom extrusion
9. Make sure the frame is rectangular. The measurements can differ by the type of extrusion you are using. This measurement is 470mm and needs to be exact on all points	10. The distance between the lower extrusions needs to be 50mm (center to center). For 20mm wide extrusions its 70mm (outside to outside)
11. The front side of the Haeckel is now done and square	12. The back side is very similar to the front side. Assemble a frame as pictured. Vertical struts are 550mm (longer because they carry the spoolholders). Horizontal struts are 430mm. Check steps 2 - 5 for details
13. Insert nuts into the lower extrusions. You'll need 5. 2 for each bar clamp. One for the belt tensioner. Assemble small corners at the bottom. Check the measurements on this part aswell	14. Assemble bar clamps and belt tensioner to the backside. Attach 3x 430mm extrusions as pictured
15. Attach 3x 430mm extrusions to the other side aswell	16. Attach Z motor mounts to the bottom. NOTICE: if you wish to mount any electronics to the inside of the printer, you will need to insert the nuts now. You will not be able to install any nuts into the t-slot lateron. If you forget this, you will have to disassemble the whole printer lateron
17. Attach the front frame. The overall frame of the printer is now finished. Check if its square

Printer at work

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