Eco M3 Deep

It is my custom built 3D printer, with all custom 3D printed parts with large bed area.

I made this printer as it would help in making other projects as i don't have direct access to one, and i am interested more on hackclub events projects & science projects which constantly need custom 3D printed parts.

Features

- Simplicity
- Large Bed size with area of 40cmx40cm
- Remote Extruder
- The structure & large bed mount are made from wood to reduce cost
- Expandable design for future additions

Assembly

1. Mounts

   • It is simple, start by putting linear bearings into the mounts specifically the moving z axis and the hotend mounts.

2. Attachments

   • Screw the hotend
   • Attach mechanical stops with the y axis motor, the same applies to the z axis bottom mount.
   • Screw the x axis bed motor onto its place.
   • Add the pulleys onto the motors shafts and onto a 3D printed small 8mm shaft that is connected to a 8mm bearing.

3. Structure

   • Make 7x 2x3cm wooden part with length of 50cm, put them together as in the image.

4. Axes assembly

   • Z axis
     • Connect the bottom z axis motor to the coupler and the coupler to the T8 lead screw.
     • Connect the T8 screw nut onto its place on the movable z axis middle mount.
     • Connect the upper z mount that has an 8mm bearing into the T8 screw.
     • Stabalize the structure by connecting the linear rod into its place through the three mounts.
     • The same applies on the other side
   • X axis
     • Mount the motors
     • Place the linear rods into their mounts
     • Put the linear bearings into thier movable mounts.
     • Screw the movable mounts onto a 45x45cm wooden bed.
   • Y axis
     • Mount the hotend into its place
     • Connect the linear bearings
     • Screw the hotend mount onto the movable part.

5. Mechanism

   • Attach the timing belts to the mounts for z - x - y axes.
   • Connect all cables to the mainboard

6. Firmware

   • Install Marlin 2.0 firmware

Bill of Materials (BOM)

Name	Description	Unit Price	Quantity	Total Price	Total in USD	Link
Stepper Motors	Nema 17 Stepper motor 17hs8401s Usongshine 48mm (Black)	825	5	4125	83.49	Link
Linear Rods	Stainless Steel Linear Rod (8mm, 1m)	260	3	780	15.79	Link
Pulleys	GT2 Timing Pulley 20 teeth Bore 5mm 2 Pcs	149	2	298	6.03	Link
Remote Extruder	Comgrow Upgraded Replacement Aluminum MK8 Extruder Drive Feed for Creality CR-10, CR-10S, CR-10 S4, and CR-10 S5	595.96	1	595.96	12.06	Link
End Stop	3D Printer Mechanical End Stop Switch Module	89.99	3	269.9	5.46	Link
Motors Couplers	3D Printer and Cnc Stepper Motor Flexible Coupling Coupler (5 to 8mm)	105	2	210	4.25	Link
T8 Lead Screw	T8 Thread Lead Screw 8mm, 2mm with Brass Nut (500mm)	295	2	590	11.94	Link
Linear Bearings	Linear Bearings 3D Printer, LM8UU, 8mm, 6 Pieces	249	2	498	10.08	Link
Timing Belt	adp GT2 Timing belt 2mm pitch 6mm wide Rubber Opening Timing Belt For 3D Printer - 2M	275	1	275	5.57	Link
Hot End	CUHAWUDBA 3D Full Metal J-Head CR10 Hotend Extruder Kit Hot End Kit for CR10 10S Bowden Extruder 24V 40W 3D Printer Parts	610	1	610	12.35	Link
Power Supply	Power Supply 24V 10A.	595	1	595	12.04	Link
SKR 1.4	SKR V1.4 TURBO	2,999.00	1	2,999.00	60.70	Link
Stepper Motors Drivers	TMC2209 V2 Stepper Motor Driver	480	4	1920	38.86	Link
Heated Bed	Aluminum Heated Bed for 3D Printer (400x200x3mm)	500	2	1000	20.24	Link
Bed Leveling Screws	3D Printer Bed Leveling M3 Screw with Spring and Hand Knob 5 Pieces	155	2	310	6.27	Link
Cooling Fan	3D 4010 Brushless Cooling Fan, 24v DC with Ball Bearing 2pin Connector	90	2	180	3.64	Link
Thermistors	100K Ohm NTC 3950 Thermistors Temperature Sensor with Cable Dupont Head for Reprap Mendel MK2A MK2B Heated Bed 3D Printers Parts	100	3	300	6.07	Link
5mm Bearings	uxcell 625-2RS Deep Groove Ball Bearing 5x16x5mm Double Sealed ABEC-3 Bearings 10-Pack	216	1	216	4.37	Link

Total: 15,771.86 (319.21 USD)
Total In USD (18/6/2025): 320$