Linear Rail

2016-05Ooznest (UK)C-Beam Linear Rail (cut to size mm)€0.04

4 x 500mm (€90).
2 x 816mm (€71).
1 x 918mm (€40).
1 x 1000mm (€43).

Manufactured from 6063 T-5 Aluminium, C-Beam has a shiny, smooth, and clear anodized finish. Weights: 250mm – 510g, 500mm – 1020g, 1000mm – 1930g, 1500mm – 2950g.

C-Beam can be considered as a 40 x 80mm V-Slot Profile compatible with all the standard V-Slot parts and accessories.

Rails are cut to your stated length +/-0.2mm. If chosen, we will tap the ends of the extrusion for a M5 Thread, they will be tapped at least 10mm deep.

Lead Screw Parts

2016-05Ooznest (UK)ACME 8mm Lead Screw€0.05

4 x 500mm + 40mm = 540mm (€106).
1 x 1000mm + 40mm = 1040mm (€40).

High Quality precision 8mm Pitch, Tr8*8-2p (4 start) trapezoidal lead screw. This specification is perfect for a combination of high speed and torque. The large 8mm diameter minimises whipping, and each start having a 2mm pitch provides a quick 8mm translation.

2016-05Ooznest (UK)ACME 8mm Lock Collar€1.70

10 x ACME 8mm Lock Collar.

Shaft Locking Collar for use with ACME Lead screws to create top quality motion systems.

2016-05Ooznest (UK)Flanged Bearing F688ZZ 8x16x5€1.26

10 x Flanged Bearing F688ZZ 8x16x5mm.

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

2016-05Ooznest (UK)8mm Shim Spacer€0.6

10 x 8mm Shim Spacer.

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

ID 8mm
OD 12mm
1mm Thick
Stainless Steel

Wheel Parts

2016-05Ooznest (UK)Delrin Mini V Wheel€1.35

20 x Delrin Mini V Wheel.

Mini V Wheels are used with the Mini V Plate to create a small form factor linear actuator guide.

Rockwell Hardness: M80
Compression Strength: 63MPA
OD: 15.23mm
ID: 9.974mm +/- 0.026mm
Thickness: 8.8mm
Material: Delrin
Color: Black

2016-05Ooznest (UK)Mini Ball Bearing 105zz 5x10x4.2€1.15

40 x Mini Ball Bearing 105zz 5x10x4.2mm.

OD: 10mm
ID: 5mm
Thick: 4.2mm
Chrome Steel

2016-05Ooznest (UK) 5mm Mini V Precision Shim€0.4

40 x 5mm Mini V Precision Shim.

Mini V Precision Shims are used in the Mini V Wheel Kits but can also be used in many other applications.

ID 5mm
OD 8mm
1mm Thick
Stainless Steel

ACME nut Block

2016-05Ooznest (UK)ACME Anti-Backlash Nut Block€13

5 x ACME Anti-Backlash Nut Block

Backlash free system for 3D Printer or CNC Machine. Delrin plastic. With a normal ACME nut block, there will always be some play between the thread of the ACME lead screw and the thread of the nut. With this anti-backlash nut, there is a levered section, turning the set screw tightens it against the thread, removing any play. Can be mounted to the underside of a gantry plate or directly onto the V-Slot extrusion. This Anti-Backlash ACME Nut block should be used in conjunction with a 2mm pitch, Tr8*8, 4 start trapezoidal lead screw.

Stepper Motor

2016-05OsmtecTinkerForge (DE)Nema 17 0.43Nm Stepper Motor (Osmtec 17HS19-0854SX)€22

5 x Osmtec 17HS19-0854SX

Can be controlled by the Stepper Brick and Silent Stepper Brick. The detachable cable is included and can be directly connected to the Stepper Brick. The correct way to connect the cable to the Stepper Brick connector can be found in one of the product photos. The stepper motor is from Osmtec and has the model number 17HS19-0854SX (Datasheet).

Torque: 0.43Nm
Step Angle: 1.8°
Voltage: 5.3V
Current: 0.85A
Resistance per Phase: 6.2Ω
Inductance per Phase: 11mH
Inertia: 82gcm²
Type: Bipolar
Shaft diameter: 5mm
Size: Nema 17
Weight: 350g

Stepper Brick

2016-05TinkerForge (DE)Silent Stepper Brick€60

5 x Silent Stepper Brick

Cable length (~) from cable box (90 degree, right-angle USB Type A to USB Mini, USB cable):

Y - 45cm (0.5m).
Z - 145cm (1.5m)
X - 225cm (2.5)
Device - 385cm  (4m)

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

2016-05TinkerForge (DE)Mounting Kit 12mm€2

5 x Mounting Kit 12mm for mounting TinkerForge bricks and bricklets.

This kit is intended to mount Bricks with 12mm height and Bricklets. Packaged in a resealable bag.

4 spacers 12mm M3 (thread inside/outside) (male-female standoffs)
4 spacers 10mm M3  (thread inside/inside) (female-female standoffs)
8 screws M3
8 nuts M3

8 washers (Made out of plastic since mid March 2017 to allow better mounting of stacks)

2016-05RS PRO2 Way PCB Terminal Block (897-0998)€0.5

5 x for 12V connection

Contacts: 2
Pitch: 3.5mm
Number of Rows: 1
Mounting Type: Through Hole
Gender: Female
Termination Method: Screw
Type: Plug
Current Rating: 10A
Body Orientation: Right Angle
Voltage Rating: 200V
Material: Polyamide
Depth: 15.6mm
Length: 7mm
Width: 11.4mm

2020-02RS PRO4 Way PCB Terminal Block (897-1004)€0.8

5 x for motor connection

Contacts: 4
Pitch: 3.5mm
Number of Rows: 1
Mounting Type: Through Hole
Gender: Female
Termination Method: Screw
Type: Plug
Current Rating: 10A
Body Orientation: Right Angle
Voltage Rating: 200V
Material: Polyamide
Depth: 15.6mm
Length: 14mm
Width: 11.4mm

Hall Effect Bricklet

2016-05TinkerForge (DE)Hall Effect Bricklet€8

10 x Hall Effect Bricklet. 1.0 version uses 10 pole cables. Version 2.0 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

2016-05TinkerForge (DE)Bricklet Cable (7p-7p) or (7p-10p) or (10p-10p)€1-3

5 x 15mm - XYZ axis.
4 x 100mm - ZY axis.
1 x 200mm - X axis.

There are Bricklets with 7 pole connectors and 10 pole connectors. This Bricklet Cable can can be used to connect Bricklets to Bricks.

12V Power

2018-12CPC FarnellPro Elec 12V, 3A AC/DC Power Supply Adapter PEL00852€9

5 x Power adapter connected to TinkerForge Stepper Brick.

High reliability
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
Straight DC connector (model: PEL00582)
Right-angled DC connector (model: PEL00853)


2018-12N/A5.5mm x 2.1mm 12V DC Power Connectors€0.60

6 x Male connector

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

2018-12LHTHEBOX(X0016RKJ2X) Akord Female to Female USB Adapter Coupler€4

6 x USB coupler

Material: PVC
Size (L-W-H): 4.5 x 1.8 x 1cm

Force gauge

2016-05Mark-10Force Gauge Series 4 M4-05 €900

Capacity and Resolution (M4-05 model): 250 x 0.1 gF.

Accuracy: ±0.2% of full scale.
Sampling rate: 3,000 Hz.
Power: AC or rechargeable battery.
Battery life: Backlight on: up to 7 hours of continuous use.
Backlight off: up to 24 hours of continuous use.
Measurement units: lbF, ozF, gF, kgF, N, kN, mN (depending on model).
Outputs: USB / RS-232: Configurable up to 115,200 baud.
Mitutoyo (Digimatic): Serial BCD suitable for all Mitutoyo SPC-compatible devices.
Analog: ±1 VDC, ±0.25% of full scale at capacity.
General purpose: Three open drain outputs, one input.
Set points: Three open drain lines.
Safe overload: 200% of full scale (display shows “OVER” at 110% and above).
Weight: M4-012 - M4-100: 1.0 lb [0.45 kg].
M4-200 - M4-500: 1.2 lb [0.54 kg].
Included items: Carrying case, chisel, cone, V-groove, hook, flat, extension rod, universal voltage AC adapter, battery, quick-start guide, USB cable, resource CD (USB driver, MESUR™Lite software, MESUR™gauge and MESUR™gauge Plus 90-day trial, and user's guide), NIST-traceable certificate of calibration with data. Warranty: 3 years (see individual statement for further details).

Washers and Bolts

2016-05AccuWasher M3 9mm O/D€0.3

20 x M3 9mm Outer Diameter Washers for motors.

Material: A4 Grade Stainless Steel
Thread Diameter: 3.2mm
Outside Diameter: 9mm
Thickness 1mm

2016-05AccuM3 x 50mm Cap Head Screws€0.5

20 x M3 50mm Cap Head Screws for motors.

Fully Threaded: No
Head Diameter: 5.5mm
Head Length: 3mm
Hexagon: 2.5mm
Hexagon Depth: 1.3mm
Length: 50mm
Manufacturing Standard DIN 912
Material: A4 Stainless Steel
Screw Thread Pitch: 0.5mm
Thread Length: 18mm
Thread Size: M3 (3mm)

2018-05Draper2.5 mm Hexagon and Ball End Hexagon Key (33601) €1.0

Tip allows the hexagon key to be used up to 30 degree angle from the screw head recess.
Made from chrome vanadium steel material.

2016-05AccuPrecision Screws€0.6

2016-05Open Builds (US)Low Profile M5 Bolt 30mm€0.3

2016-05Ooznest (UK)Low Profile M5 Bolt 30mm€0.3

37 x M5 12mm Low Profile Screw
69 x M5 15mm Low Profile Screw
48 x M5 20mm Low Profile Screw
25 x M5 25mm Low Profile Screw
39 x M5 30mm Low Profile Screw
15 x M5 35mm Low Profile Screw
  5 x M5 40mm (or 50mm) Low Profile Screw
10 x M5 45mm Low Profile Screw
  8 x M5 50mm Low Profile Screw
  4 x M5 55mm Low Profile Screw
14 x M5 60mm Low Profile Screw

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

2018-05Draper3.0 mm Hexagon and Ball End Hexagon Key (33602) €1.0

Tip allows the hexagon key to be used up to 30 degree angle from the screw head recess.
Made from chrome vanadium steel material.

2016-05Pro-BoltM5 Nyloc NutM8 Nyloc Nut€0.2

22 x M5 Nyloc Nut.

2016-05Ooznest (UK)M5 Tee Nut€0.3

6 x M5 Tee Nut.

3D Printer

2018-05Prusai3 MK3€750

• Print technology: Fused Filament Fabrication (FFF) / Fused Deposition Modeling (FDM).
• 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...

• Integrated LCD and SD card controller (8GB included).
• Automatic mesh bed levelling.
• Heatbed with cold corners compensation (warpless 3D printing from any material).
• Automatic skew axes compensation.
• Hassle free PEI print surface (no glass, no glue, no ABS juice).
• Easy multicolor printing based on layer height.
• 1 kg silver PLA filament included.
• Removable magnetic spring steel sheet with PEI surface.
• EINSY RAMBo motherboard.
• Silent Trinamic drivers with 256 microstepping.
• Faster printing: 200+ mm/s.
• Sensorless homing for X and Y axes.
• Detection and recovery of shifted layers.
• Improved frame rigidity with aluminium extrusions.
• Power loss detection and recovery.
• Better cooling from both sides of the object.
• Optional WIFI with Octoprint interface included.
• Bondtech extruder drive - filament is driven from both sides.
• Optical filament flow sensor with filament presence and movement detection.
• Automatic loading of filament when filament is inserted.
• Detection of jammed extruder with pause print.
• Both extruder cooling fan and print cooling fan detect RPM. When extruder fan is blocked, the printer will stop to prevent damage of extruder. Same applies for the print cooling fan.
• Extra silent Noctua fan.
• New P.I.N.D.A. 2 probe with included thermistor - faster temperature calibration.
• Room ambient temperature sensor.

Uninterruptible Power Supply (UPS) (Optional)

2015-10APCBack-UPS Pro€120-300

You need to disconnect "PSU Power Panic" (black and white twisted) cable from Prusa3D i3 MK3 board. Otherwise, Prusa printer will restart after each power failure.

The Back-UPS Pro family offers guaranteed power protection for high performance computer systems, routers/modems, external storage devices, game consoles and other electronics in your home or business. These UPSs supply electronics with abundant battery backup during outages and stabilize unsafe voltage levels. They also provide power protection from damaging surges and spikes, and allow the use of management software so you get the most out of your UPS. Premium features of this family may include Automatic Voltage Regulation (AVR), an LCD display, Smart Outlets, energy saving functions that reduce electricity use, network manageability, Watchdog, or configurable outlets. Together with the rest of the Back-UPS Pro's standard features, they are the perfect choice to protect your data and keep your system available.


2015-01BoschPSB 18 LI-2€104

For M5 and M3 Screws. "Screw Control" set to "1".

Screw diameter up to 10mm
Drilling diameter in wood 35mm
Drilling diameter in steel 13mm
Drilling diameter in masonry 15mm
Machine weight with battery 1,5kg

2015-01C.K ToolsHexagon Screwdriver Bit Clip Set T4524€6

2.5mm bit for M3 screws, 3mm bit for M5 screws.

Hexagon sizes: 1.5, 2, 2.5, 3, 4, 5, 5.5, 6mm.

2020-01DeWaltImpact Driver Pivoting Hex Bit Holder DT7505-QZ€10

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

2016-05RS PRORS PRO 5mm Hex Socket With 1/4 in Drive (830-3990)€2

1 x for TinkerForge M3 10mm spacers (male-female standoffs).

Socket Size: 5mm
Drive Size: 1/4 in
Socket Type: Hexagon
Drive Type: Square
Finish: Sandblasted
Material: Chrome Vanadium Steel

PETG Filament
PETG Filament

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

2018-05Prusa3DBlack PETG 1.75Filament PMBlack PETG 1.75€22

2018-05Prusa3DJet Black Prusament PETG 1.75€30

2020-08AmazonAmazonBasics Black PETG 1.75MCPPBasicFil Black PETG 1.75€21

From identical design of the spool, silica-gel sachet, temperature recommendations, similar price on Amazon and that both filaments are manufactured in Netherlands, AmazonBasics PETG filament can be rebranded BasicFil PETG by Mitsubishi Chemical Performance Polymers (MCPP) Netherlands B.V., one of the world's largest polymer based 3d filament manufacturers.

2018-053DPrintzBlack PETG 1.75€27

Brand 3DPrintz Prusa3D
Filament PM
Region UK Czechia EU Czechia Netherlands
Price €27 €30 €21 €22 €30
Overall (out of 10) 9.9 9.8 9.6 8.6 6.5
Color blackness-darnkness 9.4 9.6 10 9 6
Uniformity of surface glossiness: top (sides) 10 9 (10) 8 (9) 7 (8)  6
Stringing 10 10 10 8 6
Warping 10 10 10 10 8

About # kg with 40% infill.

I don't know, who is 3DPrintz PETG filament manufacturer. From design of the spools, this could be NorthBridge (China) sub-brand Kexcelled (China). They claim, that they are "The largest 3D filament manufacturer in East China".

Prusa3D / Filament-PM


2018-05PC JohnsonWindex Original Glass Cleaner€8

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

Water: Water
2-Hexoxyethanol:Cleaning Agent
Isopropanolamine: Cleaning Agent
Ammonium Hydroxide: Cleaning Agent
Lauryl Dimethyl Amine Oxide: Wetting Agent
Sodium Dodecylbenzene Sulfonate: Wetting Agent
Fragrance: Fragrance
Liquitint® Sky Blue Dye: Dye

2018-05SHLIsopropanol / Isopropyl Alcohol / IPA€15

I didn't test-print parts for this project on Textured PEI Powder-coated Spring Steel Sheet.

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

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

2018-05KleenexUltra Soft Pocket Tissues€6

For preparing-cleaning heated printer bed.

3-ply thickness paper tissue sheets

Printing Settings
Printing Settings for 3DPrintz PETG Filament... for Spring Steel Sheet with Smooth Double-sided PEI


PrusaSlicer is available for Windows, Mac and Linux

Modified settings: PrusaSlicer > Filament Settings > Prusament PETG > Filament

• "Extruder: 220°C".
• "Bed: 80°C".

Modified settings: PrusaSlicer > Print Settings > 0.20 QUALITY MK3 > Layers and perimeters

• "Ensure vertical shell thickness: disabled" - I had problems with thin 45° hanging angles when it was enabled.
• "Perimeters: 3" - infill pattern is less visible on surface.
• "Seam position: Rear" - I printed most of the parts with "Rear" setting selected. It created line at the back of the parts, but front and side surfaces were perfectly smooth.

Modified settings: PrusaSlicer > Print Settings > 0.20 QUALITY MK3 > Inflill

• "Fill density: 80%".

Modified settings: PrusaSlicer > Print Settings > 0.20 QUALITY MK3 > Speed

• Reduced printing speeds (10-20-180-400). Slower speeds results in smoother and glossier surfaces without matte areas, reduces printing noise with vibrations... lesser probability for corners of big parts to unstick from heated bed, because of shrinking.
• Travel: 180 - low speeds (like 20) creates surface blobs after long travel distances.
• First layer speed: 10 - for better adhesion.

Modified settings: PrusaSlicer > Printer Settings > Original Prusa i3 MK3S > Custom G-code

• I added few lines to G-code to remove filament blob on nozzle right before printing starts and raised intro line to reduce wearing of steel sheet plate surface.

G1 Z50 ; ADDED LINE --- Z Up to clean filament blob from nozzle
G1 Z-50 ; ADDED LINE --- Z Down
G1 Z0.50 ; ADDED LINE --- Z Up for less intro line adhesion to prevent surface of steel sheet plate from wearing

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