Jocys.com 3D Printed CNC Machine

DOWNLOAD Version 1.0 (2022-07-10) ZIP ~50MB

• Intro • Updates • Parts • Tools • PETG Filament • Printing Settings • STL Files

HELP with images on how to assemble CNC Machine (external link)...

INTRO

Below you will find parts and tools, which will help you to print and assemble CNC Machine. All axes are with NEMA 23 motors and ACME 8mm lead screws for better accuracy at the expense of speed (compared to belt driven axes). If you noticed mistakes, weaknesses in design, have questions or suggestions, know original part manufacturers or better alternatives (available in EU and US), please write or send link to info@jocys.com • Project page: Jocys.com/CNC

Parts were printed from PETG with Prusa3D i3 MK3 Printer. If your printer is not precise enough, printed parts may not fit into each other and may not look good. Spaces between some parts are 0.1mm only.

Electronics by TinkerForge (DE) supports various programming languages. I am using this CNC Machine with my own software for light tasks. My own software will not be available for download. Depending on what you want to do, you may need to use electronics by other manufacturer. TinkerForge allows you to write your own software, but you may need something, that exists already, and TinkerForge doesn't support that.

I hope, you will find this project or parts of it useful. If you made your own updates or changes, related to this project, please send me a link. I will add this link on my project page.

CNC with covers size (cm): Z69.5 / X123.4 / Y71
Top surface plate size (cm): X68, Y62

UPDATES

1.0 (2022-07-10) • X cart cable and wheel cart covers added.
0.1 (2018-11-25) • ...

PARTS

PARTS WITHOUT TOOLS AND DELIVERY

TOTAL	€2543	2022-07-10
Ooznest / OpenBuilds	€1251	Main components
Tinkerforge	€535	Bricks, bricklets, cables
OSMTec / StepperOnline	€90	Motors, couplers
Accu	€152	Bolts, nuts, washers
Anker	€50	USB hub
Brennenstuhl	€26	Power socket
Farnell	€45	12 V Power
Ugreen	€65	USB cables
Amazon / MCPP BasicFill	€264	12 kg PETG 3D printer filament
Other	€65	Cables, ferrules

LINEAR RAIL

Ooznest • C-Beam Linear Rail 40x80 - Cut to Size

4 x 500mm (€92).
1 x 1000mm (€44).

6063 T-5 Aluminium. Smooth anodised finish in clear or black. Black is more susceptible to scratch marks than silver. Rails are cut to stated length +/-0.2mm. Ends can be tapped for a M5 Thread at least 10mm deep.

Ooznest • V-Slot Linear Rail 20x80 - Cut to Size

2 x 694mm (€44).
1 x 796mm (€25).
7 x 600mm (€134) for top surface.

6063 T-5 Aluminium. Smooth anodised finish in clear or black. Black is more susceptible to scratch marks than silver. Rails are cut to stated length +/-0.2mm. Ends can be tapped for a M5 Thread at least 10mm deep.

Ooznest • V-Slot Linear Rail 20x60 - Cut to Size

2 x 600mm (€31) for top surface.

6063 T-5 Aluminium. Smooth anodised finish in clear or black. Black is more susceptible to scratch marks than silver. Rails are cut to stated length +/-0.2mm. Ends can be tapped for a M5 Thread at least 10mm deep.

ACME LEAD SCREW PARTS

Ooznest • ACME Anti-Backlash Nut Block

5 x ACME Anti-Backlash Nut Block (€65).

Tr8*8(p2) Anti-Backlash Nut Block for 8mm Metric Acme Lead Screw
Mounting Hole Spacing: 20mm
Pitch: 2mm
Lead: 8mm
Material: Delrin

Ooznest • ACME 8mm Lead Screw

1 x 1040mm (€41) for X axis.
4 x 540mm (€109) for Y and Z axis.

Model: Tr8*8-2p (4 starts)
Pitch: 2mm
Lead: 8mm
Number of Starts: 4
Material: Stainless Steel

Osmtec • Stepperonline • ST-RC06 6.35x8mm Coupler

5 x Rigid Motor Shaft Coupler 6.35x8mm ST-RC06 (€15).

P/N: ST-RC06
Shaft: 6.35mm - 8mm
Diameter: 25mm
Length: 30mm
Material: Aluminium Alloy

Ooznest • Flanged Bearing F688ZZ 8x16x5

10 x Flanged Bearing F688ZZ 8x16x5mm (€13).

Bore: 8mm
OD: 16mm
Width: 5mm

Ooznest • 8-12mm Shim Spacer

10 x 8-12-1mm Shim Spacer (€6).

8mm Shim for use as a spacer on 8mm ACME Threaded Rod, to seperate the lock collar and 688zz bearing.

ID: 8mm
OD: 12mm
Thick: 1mm
Stainless Steel

Ooznest • ACME 8mm Lock Collar

10 x ACME 8mm Lock Collar (€18).

Shaft Locking Collar for use with ACME Lead screws.

WHEEL PARTS

Ooznest • Metal Dual V Wheel

38 x Metal Dual V Wheel (€189).

Chrome Steel Metal Dual V Wheels are individually milled for high precision and tolerances, they are perfect for achieving accurate linear motion with V-Slot Extrusion and OpenRail. Manufactured from Carbon Steel 45.

Ooznest • Ball Bearing 625-2RS

76 x 625-2RS Ball Bearing 5x16x5mm (€90).

OD: 16mm
ID: 5mm
Thick: 5mm
Chrome Steel

Ooznest • 5mm Precision Shim

124 x 5-10-1mm Precision Shim (€37).

Precision Shim 10x5x1mm are used as a spacer between the bearings in V-Slot Wheels.

ID: 5mm
OD: 10mm
Thick: 1mm
Stainless Steel

Ooznest • 3mm Aluminum Spacer

202 x 5.1-10-3mm Aluminum Spacer (€46).

ID: 5.1mm
OD:10mm
Thick: 3mm
Aluminum

Y CHAIN CART PARTS

Ooznest • Mini V Bearing 105zz 10x5x4.2mm

8 x Mini V Bearing 105zz 10x5x4.2mm (€9) - for 2 Chain Carts.

Bore: 8mm
OD: 10mm
Width: 4.2mm

Ooznest • Mini V Precision Shim VS-MVS1

12 x Mini V Precision Shim (€4) - for 2 Chain Carts.

ID: 5mm
OD: 8mm
Thick: 1mm
Stainless Steel

MOTOR COVER FANS

Noctua • NF-A6x25 FLX 3-pin

5 x NF-A6x25 FLX (€75) for motors.
This fan has 3-pin connector ("PWM" fan models have 4-pin connectors.)

Size: 60x60x25 mm
Mounting hole spacing: 50x50 mm
Connector: 3-pin
Bearing: SSO2
Rotational speed (+/- 10%) RPM: 3000, 2400 (L.N.A.), 1600 (U.L.N.A.)
Airflow m³/h: 29.2, 23.5 (L.N.A.), 16.7 (U.L.N.A.)
Acoustical noise dB(A): 19.3, 14,5 (L.N.A.), 8.2 (U.L.N.A.)
Max. input power: 1,44 W
Max. input current: 0,12 A
Operating voltage: 12 V

STEPPER MOTOR

Osmtec • Stepperonline • Nema 23 Stepper Motor (1.16Nm 1:1)

5 x Osmtec 23HS22-1504S (€75).

If you want to use heavy device on X Cart, I would recommend to use Nema 23 motors with 2:1 gearbox for Z axis. Otherwise, motors may not be able to hold X axis in place, when CNC power is switched off.

Manufacturer Part Number: 23HS22-1504S
Motor Type: Bipolar Stepper
Step Angle: 1.8 deg
Holding Torque: 1.16Nm(164.3oz.in)
Rated Current/phase: 1.5A
Voltage: 5.4V
Phase Resistance: 3.6ohms
Inductance: 13mH ± 20%(1KHz)
Frame Size: 57 x 57mm
Body Length: 56mm
Shaft Diameter: Φ6.35mm
Shaft Length: 21mm
D-cut Length: 15mm
Number of Leads: 4
Lead Length: 500mm
Weight: 0.7kg

Accu • Washer M5 15 x 2 mm O/D

32 x M5 15 mm Outer Diameter Washer (€5) for YZ Carts.

Accu • Washer M5 12.5 x 1 mm O/D

68 x M5 12.5 mm Outer Diameter Washer (€5) for motors, wheel holders and chain carts.

Internal Diameter (ID): 5.3mm
External Diameter (OD): 12.5 mm
Thickness (T): 1mm
For Use With Thread Size: M5 (5mm)
Manufacturing Standard: BS4320
Material: Marine Stainless Steel (A4)

Bootlace Ferrule Colour Codes • Wire Diameter to AWG

Phoenix Contact • 3203024 Yellow Bootlace Ferrule

20 x Insulated Crimp Bootlace Ferrule (€4) for Nema 23 motor power 0.25² wire ends.

Colour: Yellow
Maximum Wire Size: 0.25 mm²
Maximum Wire Size: 24 AWG
Pin Length: 6mm
Pin Diameter: 0.8mm
Overall Length: 10.5mm
Insulation: Insulated (Plastic)

TE Connectivity • 966067-1 White Bootlace Ferrule

10 x Insulated Crimp Bootlace Ferrule (€8) for Stepper Brick power 12V 0.5mm² wire end.

Colour: White
Maximum Wire Size: 0.5 mm²
Maximum Wire Size: 20 AWG
Pin Length: 6mm
Pin Diameter: 1mm
Overall Length: 12mm
Insulation: Insulated (Plastic)

Knipex • 97 68 145 A Crimping Pliers

Capacity: 0.25 - 2.5 mm² / 24 - 14 AWG

C.K Tools • 30018 Ratchet Crimping Pliers

Capacity: 0.14 - 2.5 mm² / 26 - 14 AWG

Tinkerforge • 4 Way PCB Terminal Connector Block

5 x 4 Way PCB Terminal Connector Block (€8) for "Motor ► Stepper Brick" connection.

● Black
● Green
● Red
● Blue

Contacts: 4
Pitch: 3.5mm
Number of Rows: 1
Mounting Type: Through Hole
Gender: Female
Type: Plug
Termination Method: Spring

STEPPER BRICK AND HALL EFFECT BRICKLET

TinkerForge (DE) • Silent Stepper Brick

5 x Silent Stepper Brick (€300).

Drives one bipolar stepper motor over USB (max. 46V, 1.6A per phase).
Noiseless operation of stepper motors.
Position, velocity and acceleration controllable.
Stepper resolution from full-step to 1/256-step.
Configurable decay mode.
Extendable via two Bricklets ports.

Maximum Motor Current per Phase: 1.6A
Minimum/Maximum Input Voltage: 8V/46V
Step Resolution: 1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128, 1/256
Maximum Velocity: 0 to 65535, configurable as limit, in steps/s
Maximum Acceleration: 0 to 65535, configurable as limit, in steps/s²
Bricklet Ports: 2
Dimensions (W x D x H): 40 x 40 x 17mm
Weight: 19g
Current Consumption: 59mA

TinkerForge (DE) • Hall Effect Bricklet 2.0

10 x Hall Effect Bricklet 2.0 (€150).

Hall Effect Bricklet. 1.0 version uses 10 pole cables. New 2.0 version uses 7 pole cables.

Detects presence of magnetic field.
Counts (dis-)appearances of magnetic fields.
Can be used to read out water/electricity meter.

Sensor: AH180N
Current Consumption: 1mA
Operation: Omnipolar (North and South pole is detected)
Trigger Point: -35/35 Gauss
Release Point: -25/25 Gauss
Sampling Rate: 8Hz
Dimensions (W x D x H): 25 x 15 x 5mm
Weight: 2g

TinkerForge (DE) • MakerBeam Magnets

5 x MakerBeam Magnet Sets (€35) for XYZ axis ends.

2 pot magnets with internal thread M3, 10x4.5mm, strength ~1.2kg, magnetisation N38.

2 rubber caps, 11mm diameter, 3mm height, weight, 0,16g
2 self-adhesive metal discs, 10mm diameter, 2mm height, 1,2g weight, adhesive: 3M, No. 9888T
2 washers M3.

TinkerForge (DE) • Mounting Kit 12mm

8 x Mounting Kit 12mm (€16) for mounting TinkerForge bricks and bricklets.

4 spacers 12mm M3 (thread inside/outside) (male-female standoffs)
8 screws M3
8 nuts M3
4 spacers 10mm M3 (thread inside/inside) (female-female standoffs)
8 washers (Made out of plastic since mid March 2017 to allow better mounting of stacks)

TinkerForge (DE) • Bricklet Cable 7p-10p

For "Hall Effect Bricklet 2.0 (7-pole) ► Silent Stepper Brick (10-pole)" connections.

5 x 50mm (€7) - X1, Y1, Z1.
4 x 100mm (€10) - Z1 ► Z2, Y1 ► Y2.
1 x 200mm (€4) - X1 ► X2.

Ugreen • LuLian • USB Type A Male to USB Mini B Male

Route "Hall Effect Bricklet" and "Silent Stepper Brick" 12V power cables through extrusion holes (Z axis) first! After that, you can route "Silent Stepper Brick" USB cables (Z axis extrusion holes) - one USB cable per one extrusion hole. Ugreen USB cable small Mini B connector end fits trough internal extrusion holes without need to remove motors.

2 x Ugreen 10355 USB A Male to Mini B Male 1m Cable (€17) - Cable Box ► Y1.
2 x Ugreen 30472 USB A Male to Mini B Male 2m Cable (€21) - Cable Box ► Z1.
1 x Ugreen 10386 USB A Male to Mini B Male 3m Cable (€13) - Cable Box ► X1.

1 x Ugreen 60408 USB A Male to USB C Male 3m Cable (€14) - Cable Box ► X2.
1 x Duttek USB-C Female to USB-A 3.0 Female Adapter (€10) ► X2.
1 x StarTech USB2AUB2RA2M USB-A 2.0 Male to USB-Micro Male 2m Cable (€10) - X2 ► XC.

Anker • USB 3.0 7-Port Data & Charging Hub A7515211

1 x USB 3.0 7-Port Data & Charging Hub A7515211 (€50).
Hardware interface : USB, USB 3.0, USB 2.0
Quick Sync: Transmit data via 7 USB ports at up to 5Gbps.
Charge Faster: 3 PowerIQ ports detect your device's charging protocols to deliver the optimum charge at speeds up to 2.1 amps per port or 10 amps overall.
Compact Power: A 12V / 5A AC power adapter ensures ports are fully operational at all times.
Compatibility: 2.4 GHz wireless devices, MIDI devices and some USB 3.0 devices may not be supported. Try using the host port or a USB 2.0 connection. The 3 USB charging ports are not designed for data transfer.

12V POWER AND CABLES

Brennenstuhl • Super-Solid-Line 8-way Extension Socket (EU)
Brennenstuhl • Super-Solid-Line 8-way Extension Socket (UK)

1 x Super-Solid-Line 8-way Extension Socket (€26).

Heavy-duty 1.5mm² safety cable reduces the risk of overheating or overload.
Earthed sockets in a 90° arrangement - the distance between the sockets allows the use of large charger units.
Illuminated 2-pole ON/OFF safety switch.
Cable output is fitted opposite the switch - therefore, no surplus cable e.g. on the desk.
Cable length 2,5 m.
Cable designation H05VV-F 3G1,5.
Max. current carrying capacity 13 A.

CPC Farnell • Pro Elec 12V, 3A AC/DC Power Supply Adapter PEL00853

5 x Pro Elec 12V, 3A Power Adapter PEL00852 (€45) for TinkerForge Stepper Brick.

Straight DC connector (model: PEL00582) 2.1mm x 5.5mm x 12mm
Right-angled DC connector (model: PEL00853) 2.1mm x 5.5mm x 12mm

Fixed UK plug
Conforms to: UL CE ErP VI
Built-in over-Voltage, over-current and short circuit protection
Level VI efficiency regulations compliant
Universal input: 90~264V AC, 47~63Hz

12voltplanet • 50m Reel of Single Core 0.5mm² 11A Cable

1 x 50m Reel of Single Core Black 0.5mm² 11A Cable (€16) for for 12V power.

1m x 4 - Cable Box ► Y1.
2m x 4 - Cable Box ► Z1.
3m x 4 - Cable Box ► X1 and X2.

1 x Kenable 004429 5.5 x 2.1mm Female to Male Angled DC Power 2m Cable (€2) - X2 ► XC.

Manufactured to: ISO 6722:2006 (Class B)
Voltage rating: suitable for 12V & 24V systems (60V max.)
Nominal current rating: 11A
Maximum loading: 132W@12V, 264W@24V
No./size of conductors: 16/0.20mm
Conductor cross section: 0.5mm²
Maximum overall cable diameter: 1.7mm
Resistance per m at 20oC: 0.0371 Ω
Conductor material: Plain copper
Insulation material: PVC (hard grade)
Working temperature range: -40oC to +105oC (with brief excursions up to +120oC)

12voltplanet • Heat Shrink Tubing
GoCableTies • RED Heat Shrink Tubing Mini Reel (7 Colours)

1 x 2.4mm / 1.2mm RED Heat Shrink Tubing Mini Reel (€7) for black +12V cable ends.

Heat shrink tubed packaged into a convenient mini reel box
2:1 Shrink Ratio
Material: Black Polyolefin - standard wall heat shrink tube
Internal diameters from: 1.2mm up to 25.4mm (Pre-shrinkage)
Colours: Black, Red, Green, Blue, Yellow, White, Clear

Amazon • 5.5mm x 2.1mm 12V DC Power Connectors

6 x 5.5mm x 2.1mm 12V DC Power Connectors (€8) for 12V connections.

Model: QAA-90105
Internal diameter of the plug: 2.1mm
External diameter of the plug: 5.5mm
Pair (Male connector and Female connector)

Tinkerforge • 2 Way PCB Terminal Connector Block

5 x 2 Way PCB Terminal Connector Block (€5) for "12V Power ▶ Stepper Brick" connection.

● Red
● Black

Contacts: 2
Pitch: 3.5mm
Number of Rows: 1
Mounting Type: Through Hole
Gender: Female
Type: Plug
Termination Method: Spring
Body Orientation: Right Angle

M5 BOLTS AND SCREWS

Accu • M5 Metric Socket Cap Head Screws

16 x M5 80mm Cap Head Screw (€24) for Y Cart.
8 x M5 85mm Cap Head Screw (€20) for Z Cart.
8 x M5 Cap Head 110mm Screw (€34) for Z Cart.

Ooznest • Low Profile M5 Bolt

21 x M5 Bolt 12mm (€5)
236 x M5 Bolt 15mm (€50)
46 x M5 Bolt 20mm (€10)
71 x M5 Bolt 25mm (€17)
12 x M5 Bolt 30mm (€4)
16 x M5 Bolt 35mm (€5)
18 x M5 Bolt 40mm (€7)
18 x M5 Bolt 50mm (€8)
44 x M5 Bolt 55mm (€18)
8 x M5 Bolt 60mm (€4)
16 x M5 Bolt 65mm (€8)

Material: Alloy Steel
Lenght: 6-65mm
Thread Pitch: 0.8mm
Hex Head: 3mm
Thickness 1.5mm

M5 NUTS

Accu • M5 x 20mm x 8mm Threaded Hexagon Spacer HHTPS-M5-8-20-SS

12 x M5 20mm Hexagonal Stud Connector Nut (€31) for X Cart Plate B.

Hexagon A/F (J): 8mm
Hole Depth 1 (E): 10mm
Hole Depth 2 (E): 10mm
Manufacturing Standard: Not Standardised
Material: Stainless Steel
Metric or Imperial?: Metric
Nut Length (L): 20mm
Thread Size: M5 (5mm)
Through Hole: Yes

Accu • M5 Flat Square Nut HFSN-M5-8.8-Z

94 x M5 Flat Square Nut HFSN-M5-8.8-Z (€8).

Chamfered (May Vary): No
Finish: Zinc Plated
Manufacturing Standard: Not Standardised Material: High Tensile Steel (8.8)
Metric or Imperial?: Metric
Screw Material Specification: High Tensile Steel (8.8)
Thickness (T): 3mm
Thread Size: M5 (5mm)
Width (B): 10mm

Accu • M5 Hexagon Nylon Locking Nut (DIN 985) (A4)

127 x M5 Nyloc Nut (€15).

Hexagon Height (T) [Min]: 3.20mm
Insert Material: Nylon
Manufacturing Standard: DIN 985
Material: Marine Stainless Steel (A4)
Metric or Imperial?: Metric
Nut Width A/F (J) [Max]: 8mm
Screw Thread Pitch: 0.80mm
Thread Size: M5 (5mm)
Total Thickness (L) [Max]: 5mm

Ooznest • M5 Tee Nut

175 x M5 Tee Nut (€43) - check each tee nut with M5 screw before assembling.

These Tee Nuts are designed with rounded corners so they can easily slide into V-Slot Extrusion and be used with M5 Bolts.

M5 1.5x10x15mm
BLK-HD0006-M5 / FT16031-M5
Misumi HNKK5-5

TOOLS

3D PRINTER

Prusa • i3 MK3 3D Printer

• Print technology: Fused Filament Fabrication / Fused Deposition Modeling.
• 0.4mm nozzle (easy changeable) for 1.75 mm filament.
• Build volume 11,025 cm3 (25 x 21 x 21 cm).
• Layer height (layer resolution) from 0.05 mm (50 microns).
• Accuracy: 0.01 x 0.01 x 0.005 mm (10 x 10 x 5 microns).
• Max extruder temperature: 280 °C.
• Max heated bed temperature: 120 °C.
• Supported materials: PLA, ABS, PET, HIPS, Flex PP, Ninjaflex, Laywood, Laybrick, Nylon, Bamboofill, Bronzefill, ASA, T-Glase, Carbon-fibers enhanced filaments, Polycarbonates...

SCREWDRIVER

Wera • 7441 Adjustable Torque Screwdriver 7441 (1.2 → 3Nm)

05074701001 - saves screws and plastic from deformation. 1.2Nm for Cover Holder, Cover, Wheel M5 screws.

Adjustable Kraftform torque screwdriver with Rapidaptor quick-release chuck
Suitable for bits with 1/4" hex head drive
Distinct signal when pre-set value is reached
Numerical torque value indicator

Torque Range: 1.2 → 3Nm
Accuracy: ±6 %
Drive Shape: Hex
Drive Size: 1/4 in

BIT HOLDERS

Wera • 899/4/1 S Universal Bit Holder 75mm (05160924001)

05160924001 - 75mm - for motor and near corners screws.

Universal holder for the take-up of bits with 1/4" hex head drive as per DIN ISO 1173-C 6.3. Stainless sleeve for special corrosion protection. The particularly strong retaining ring ensures an optimum fixing of the tool in the holder. The especially strong permanent magnet makes sure that the bits are held absolutely securely. 1/4" hexagon, suitable for holders as per DIN ISO 1173-F 6.3.

Outer Diameter: 10.5mm
Bits: 1/4"

DeWalt • Impact Driver Pivoting Hex Bit Holder DT7505-QZ

20° Degree Pivot Mode allows for tight space accessibility
1/4" (6.35mm) Hex Shank

HEX BITS & SOCKETS

Wera • Wera 840\4 Z Hexagon Bits (50, 89, 152mm)

05059610001 - 4.0mm - 50mm - for Accu 80mm, 85mm and 110mm screws.
05059605001 - 3.0mm - 50mm - for M5 Screws.
05059604001 - 2.5mm - 50mm - for ACME 8mm Lock Collar and Motor Shaft Coupler Screws.

Wera • 8790 HMA Deep 1/4" Sockets (05004501001)

05004501001 - 5.0mm - 50mm - for TinkerForge M3 10mm hexagon standoffs (optional).

Socket Size: 5mm
Drive Size: 1/4 in
Socket Type: Hexagon
Drive Type: Square

Wera Tools • 3950 PKL L-key (05022703001)

05022703001 - for few M5 screws.

Hex Head: 3mm
Size: 123 x 21 mm

WIRE STRIPPING AND CUTTING TOOLS

C.K Tools • Wire Stripping Pliers T3894

For safe and damage-free stripping of fine, insulated solid wires. Suitable for cutting soft copper wires.

Stripping capacities mm: 0.4, 0.5, 0.6, 0.8, 1.0, 1.3
Stripping capacities AWG: 26, 24, 22, 20, 18, 16

C.K Tools • Side Cutters T3887

Precision side cutters. Suitable for cutting soft copper wires of up to 1.6mmØ / 14AWG.

PETG FILAMENT

I would not recommend to print parts from ABS (shrinkage is too big) or PLA (low heat resistance).

I had no problems with these filaments:
Prusa3D • Jet Black Prusament PETG 1.75
MCPP • BasicFil Black PETG 1.75
Amazon • AmazonBasics Black PETG 1.75

SHL • Isopropanol / Isopropyl Alcohol / IPA

For preparing-cleaning heated printer bed... Double-sided Textured PEI Powder-coated Spring Steel Sheet before printing with PETG filament.

For thin parts to stick correctly, you may need to adjust height of first layer perfectly and to reduce "Elephant foot compensation" from default value 0.2mm... to 0.1mm.

Modified settings: PrusaSlicer > Print Settings > 0.20 QUALITY MK3 > Advanced > Slicing...

Isopropanol 99.9% / Isopropyl Alcohol / IPA
Manufacturer Part Number: 1000-ISO-TRIGGER
Child Proof Cap
Natural Trigger spray cap for bottles with a 28mm neck (OFF, Spray, Stream)
1 Litre

Thingiverse form limit reached here...
You can find the rest on Jocys.com CNC Machine project page (external link...)

"Anti-backlash nut" results