Gridbot-tahi

A simple open source machine for automated grid beam production.

Where possible, uses easy-to-source OpenBuilds components (e.g. MakerStore, BulkMan 3D) or other readily available standardized parts, following inspiration from open source "pro" consumer CNC machines.

One spindle, two axis of motion (beam-length and beam-width).

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Table of Contents

1. Parts list
2. Workholding Assembly
3. Spindle Assembly
4. Hanpose Hpv6 Linear Guide Assembly
5. Width Axis Assembly
6. Length Axis Assembly
7. Main Assembly

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Parts list

Workholding	Spindle	Hanpose Hpv6 Linear Guide	Width Axis	Length Axis	Main	TOTALS
							Vitamins
.	.	.	.	1	.	1	40
.	1	1	.	.	.	2	Aluminium tooling plate 120mm x 100mm x 10mm
.	2	.	.	.	.	2	Aluminium tooling plate 120mm x 20mm x 6mm
.	.	.	1	1	.	2	Aluminium tooling plate 128mm x 159mm x 6mm
.	.	.	.	2	.	2	Aluminium tooling plate 48mm x 80mm x 6mm
.	.	.	.	1	.	1	Aluminium tooling plate 55mm x 25mm x 5mm
.	.	.	.	2	.	2	Aluminium tooling plate 60mm x 10mm x 5mm
.	.	.	.	1	.	1	Aluminium tooling plate 60mm x 20mm x 5mm
.	.	1	.	.	.	1	Bearing EF08
.	.	1	.	.	.	1	Bearing EK08
16	.	.	.	.	6	22	Double L Bracket
.	.	.	.	3	.	3	External Gear Rack
.	.	1	.	.	.	1	Extrusion E20100 x 270mm
4	.	.	.	.	.	4	Extrusion E2040 x 120mm
1	.	.	.	.	.	1	Extrusion E2040 x 1500mm
4	.	.	.	.	.	4	Extrusion E2040 x 200mm
4	.	.	.	.	.	4	Extrusion E2040 x 320mm
.	.	.	.	1	.	1	Extrusion E2080 x 1500mm
.	.	.	.	1	.	1	Gear Rack Motor Mount Plate
.	.	1	.	.	.	1	Leadscrew 8 x 250mm, 10mm lead, 1 starts
.	.	.	.	2	.	2	Linear rail HGH15CA x 1500mm
.	.	2	.	.	.	2	Linear rail HGH15CA x 240mm
.	.	2	.	4	.	6	Linear rail carriage HGH15CA
64	.	.	.	50	24	138	Nut M5 sliding T
.	.	.	.	3	.	3	Nut M5 x 4mm nyloc
.	.	.	.	46	.	46	Screw M4 cap x 16mm
.	.	.	.	4	.	4	Screw M4 cs cap x 16mm
64	.	.	.	.	24	88	Screw M5 cap x 8mm
.	.	.	.	1	.	1	Screw M5 cap x 10mm
.	.	.	.	1	.	1	Screw M5 cap x 16mm
.	.	.	.	1	.	1	Screw M5 cap x 20mm
.	.	.	.	1	.	1	Screw M5 cap x 60mm
.	.	.	.	1	.	1	Screw M5 grub x 5mm
.	.	1	.	.	.	1	Shaft coupling SC_635x8_rigid
.	.	.	.	2	.	2	Single L Bracket
.	1	.	.	.	.	1	Spindle ER20
.	.	.	.	1	.	1	Spring 7.5mm OD, 1.2mm gauge x 20mm long, open end
.	.	1	.	.	.	1	Stepper motor NEMA22 x 51.2mm
.	.	.	.	1	.	1	Stepper motor NEMA22 x 86mm
157	4	11	1	131	54	358	Total vitamins count
							3D printed parts
.	.	.	.	.	1	1	stm32_f7676zi_din_mount.stl
.	.	.	.	.	1	1	Total 3D printed parts count
							CNC routed parts
.	.	.	.	1	.	1	length_axis_bottom_plate.dxf
.	.	.	.	1	.	1	length_axis_motor_side_plate.dxf
.	.	.	.	2	.	2	length_side_cover_plate.dxf
.	1	.	.	.	.	1	spindle_plate.dxf
.	2	.	.	.	.	2	spindle_plate_spacer.dxf
.	.	.	1	.	.	1	width_axis_plate.dxf
.	3	.	1	4	.	8	Total CNC routed parts count

Hardware design assets and documentation licensed under CC BY 4.0, .scad files licensed under GPL-3.0 (as with NopSCADlib).

Previous design notes: https://wiki.villagekit.com/en/grid-bot

Inspiration:

• Phil and Richard's multi-spindle drill press: https://youtu.be/PIMESt9iLYg
• BeamCNC: https://github.com/VladLunachev/BeamCNC/
• https://wiki.replimat.org/wiki/Automated_drilling_machines
• https://youtu.be/YmD3KoqatHs
• https://youtu.be/1WsEdbiqdlA
• https://youtu.be/ksaT63qqIJM
• https://youtu.be/h0pohupmKKk
• https://youtu.be/mg9bALNiYPU
• https://youtu.be/ocbE4NLd9go

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Workholding Assembly

Vitamins

Qty	Description
16	Double L Bracket
4	Extrusion E2040 x 120mm
1	Extrusion E2040 x 1500mm
4	Extrusion E2040 x 200mm
4	Extrusion E2040 x 320mm
64	Nut M5 sliding T
64	Screw M5 cap x 8mm

Assembly instructions

This assembly is to hold the workpiece (the grid beam) and the rest of the machine.

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Spindle Assembly

Vitamins

Qty	Description
1	Aluminium tooling plate 120mm x 100mm x 10mm
2	Aluminium tooling plate 120mm x 20mm x 6mm
1	Spindle ER20

CNC Routed parts

1 x spindle_plate.dxf	2 x spindle_plate_spacer.dxf

Assembly instructions

This assembly is for a spindle and motor connected via gears.

• Spindle: ER20 Spindle Head for Drilling
• Motor: iHSV57-180 Nema23 180W Integrated Servo Motor

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Hanpose Hpv6 Linear Guide Assembly

Vitamins

Qty	Description
1	Aluminium tooling plate 120mm x 100mm x 10mm
1	Bearing EF08
1	Bearing EK08
1	Extrusion E20100 x 270mm
1	Leadscrew 8 x 250mm, 10mm lead, 1 starts
2	Linear rail HGH15CA x 240mm
2	Linear rail carriage HGH15CA
1	Shaft coupling SC_635x8_rigid
1	Stepper motor NEMA22 x 51.2mm

Assembly instructions

Hanpose HPV6: https://www.aliexpress.com/item/32908794883.html

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Width Axis Assembly

Vitamins

Qty	Description
1	Aluminium tooling plate 128mm x 159mm x 6mm

CNC Routed parts

1 x width_axis_plate.dxf

Sub-assemblies

1 x hanpose_hpv6_linear_guide_assembly

Assembly instructions

This assembly is for the axis that will travel perpendicular to the length of the grid beam (i.e. along the width of the grid beam).

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Length Axis Assembly

Vitamins

Qty	Description
1	40
1	Aluminium tooling plate 128mm x 159mm x 6mm
2	Aluminium tooling plate 48mm x 80mm x 6mm
1	Aluminium tooling plate 55mm x 25mm x 5mm
2	Aluminium tooling plate 60mm x 10mm x 5mm
1	Aluminium tooling plate 60mm x 20mm x 5mm
3	External Gear Rack
1	Extrusion E2080 x 1500mm
1	Gear Rack Motor Mount Plate
2	Linear rail HGH15CA x 1500mm
4	Linear rail carriage HGH15CA
50	Nut M5 sliding T
3	Nut M5 x 4mm nyloc
46	Screw M4 cap x 16mm
4	Screw M4 cs cap x 16mm
1	Screw M5 cap x 10mm
1	Screw M5 cap x 16mm
1	Screw M5 cap x 20mm
1	Screw M5 cap x 60mm
1	Screw M5 grub x 5mm
2	Single L Bracket
1	Spring 7.5mm OD, 1.2mm gauge x 20mm long, open end
1	Stepper motor NEMA22 x 86mm

CNC Routed parts

1 x length_axis_bottom_plate.dxf	1 x length_axis_motor_side_plate.dxf	2 x length_side_cover_plate.dxf

Assembly instructions

This assembly is for the axis that will travel along the length of the grid beam.

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Main Assembly

Vitamins

Qty	Description
6	Double L Bracket
24	Nut M5 sliding T
24	Screw M5 cap x 8mm

3D Printed parts

1 x stm32_f7676zi_din_mount.stl

Sub-assemblies

1 x length_axis_assembly	1 x spindle_assembly	1 x width_axis_assembly

1 x workholding_assembly

Assembly instructions

Main assembly

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