1. Frame

Part	Lecktor	Zaribo	RatRig	Notes
Prusa Bear Frame kit	109,95€		89,99€	Avoid Chinese clones as they won't have the same precision as the ones from the official sellers
MK52 Heated bed carriage	33,95€	34,50€		You can try to source a carriage from Aliexpress and if you get an uneven one, compensate with Nylock Mod. But for the price difference just get a good one in the first place

Section Total: 123,94€

2. Electronics

Part	Lecktor	Zaribo	Amazon.es	fillment3d.pt	AlliExpress	Notes
24v Power Supply	36,00€	28,50€		29,50€
PSU cables	3,95€	6,95€				Alternatively you can buy 14-16 gauge cable, spade terminals and make your own cable
BigTreeTech SKR 1.4 Turbo			30,99€	42,50€	24,55€
5x BigTreeTech TMC2226 v1.0					24,52€	You can also use the old TMC2209 V3.0
Nema 17 Motor Set	89,95€	99,50€
MK52 24V Heated Bed	89,50€	96,50€				Includes magnets, thermistor, power cable, spacers and screws
PINDA V2	13,95€	14,95€			11,16€
Prusa Mk3s IR Filament Sensor kit		14,95€			7,63€	Includes IR Sensor, Stell ball and Magnets
SKR Extension wire set	11,95€	9,50€				Alternatively you can replace the connectors by yourself (4x XHP-2 + 1x XHP-1 + 5x XHP-4)
BigTreeTech TFT35 V3.0			39,99€		26,00€
2x 80cm LCD cable	7,90€	9,00€		5,40€	5,62€	BTT provides shorter cables

Section Total (with best parts): 330,77€

Section Total (with best price): 320,66€

3. Extruder

Part	Lecktor	Zaribo	Fillment3d.pt	Amazon.es	AlliExpress	Notes
Bondtech gears (1.75mm with 20mm shaft)	29,50€		12,90€		15,15€	You can use clones, as long as they are note crappy Chinese ones.
50mm PTFE Tube			0,30€
3mm Nylon cable - 500mm						Search for 2,85mm filament sample or cleaning filament from a local store or buy some 3mm lawn mower nylon cord.
Hotend Fan (40x40x10mm - 24v)				10,90€		Use Sunon or Mecatronics fans otherwise it will be hard to use the same firmware/slicer settings.
Nozzle Fan (5015 - 24v)					8,83€	Use Sunon or Mecatronics fans otherwise it will be hard to use the same firmware/slicer settings.
E3D V6 Hotend - 1.75mm	59,95€	72,95€	18,16€		11,16€	Make sure that your kit have all the parts listed below.

If you prefer to buy your E3D V6 Hotend in parts:

Part	Lecktor	Zaribo	Fillment3d.pt	Amazon.es	AlliExpress
E3D V6 Universal Heat Sink - 1.75mm		14,50€	9,75€		6,63€
E3D V6 Heat Break - 1.75mm		13,50€	1,50€		3,98€
E3D V6 Heater Block		15,95€	3,00€		2,43
Heater Cartridge 24V - 40W	6,95€	6,50€	1,90€		4,07€
3mm Thermistor Cartridge	6,95€	6,95€	2,60€		6,51€
E3D Silicone Sock	1,50€	4,95€			2,29€
E3D Brass Nozzles - V6	6,50€			10,00€	4,21€

Section Total (with best parts): 109,48€

Section Total (with best price): 44.09€

4. Rods & bearings

Part	Lecktor	Zaribo	Notes
322mm Smooth linear rods	42,95€		2x 322mm Z axis| 2x 360mm Y axis| 2x 370mm X axis
10x LM8U bearings	39,50€	49,50€	3x Extruder | 4x Z axis | 3x Y axis

Section Total: 82,45€

5. Belts & pulleys

Part	Lecktor	Zaribo	AlliExpress	Notes
2x 2GT 16T pulley (5mm bore)	5,90€			1x Y axis | 1x X axis
2x 2GT 20T idler (3mm bore) - Smooth or toothed	3,90€			1x Y axis | 1x X axis
Gates LL-2GT 6mm belt - 1530mm	14,40€	8,50€	9,98€	880mm X axis| 650mm Y axis

Section Total: 18,30€

6. Bolts & nuts

Part	Quant.	Total	Lecktor	Zaribo	Fillment3d.pt	Notes
M3x8mm socket head screw (ISO 4762)	8	0,72€			0,09€	4x SKR box
M3x10mm socket head screw (ISO 4762)	17	1,36€			0,08€	3x Y motor mount | 14x for BearExxa
M3x12mm socket head screw (ISO 4762)	8	0,80€			0,10€	8x Z motor mount
M3x16mm socket head screw (ISO 4762)	1	0,14€			0,14€	1x PSU holder
M3x18mm socket head screw (ISO 4762)	14	2,38€				14x BearExxa
M3x25mm socket head screw (ISO 4762)	3	0,45€			0,15€	2x BearExxa | 1x SKR box
M3x40mm socket head screw (ISO 4762)	6	1,44€			0,24€	6x BearExxa
M3x16 button head (ISO 7380)	4	0,44€			0,11€	4x BearExxa hotend fan
M3 Steel washer (DIN 125) - 0.5mm thick	13	0,07€			0,01€	8x Z motor mount | 5x BearExxa
M3 Hex nuts (DIN 934)	15	0,75€			0,05€	1x PSU holder | 14x BearExxa
M3 Hex nylock nuts (DIN 985)	4	0,52€			0,13€	4x BearExxa
M3 Square nuts (DIN 562) - 1.8mm thick and 5.5mm wide	12	1,44€			0,12€	7x BearExxa | 5x SKR box
Dowel pin (15.8x2.95mm)	2	1,50€	0,75€			1x Y idler | 1x X idler
Spring (Center 4.9mm, 15mm- free & 10mm compressed)	1	0,95€		3,80€	0,95€	Extruder

Section Total: 13,83€

7. Buildplates

Part	Zaribo	Aliexpress	Notes
Original Thekkiinngg Powder-Coated Spring Sheet V4	49,50€		Highly recommended
FYSETC Double Sided Textured PEI Spring Steel Sheet		21,93€	Not the best one, but cheap.
Trianglelab Double Sided Textured PEI Spring Steel Sheet		38,02€	Better than FYSETC, but not as good as Thekkiinngg.
MK3 Spring Steel Plate		10,72€	This is just the Steel Plate. You will need to source 2x PEI Stickers.
MK52 PEI for Steel Sheet	13,50€		This is just the sticker. You will need one sticker for each side and a Spring Steel Plate.
MK52 Buildplate Black Sticker Sheet		3,83€	Not the best sticker, but works fine with PLA and not medium size objects.
Note: You cannot print directly to the heated bed. You will need a "Textured Spring Steel Sheet" or a "Spring Steel Sheet" and two stickers.

Section Total (with best textured plate): 49,50€

Section Total (with best price): 18.38€

8. Other Required Parts

Part	Lecktor	Aliexpress	Notes
25x Zip ties 2.5x100mm		2,15€	6x for extruder | 4x for Y rods | 15x for cable management
Textile Cable Sleeve Set Prusa MK3	4,95€	2,62€ + 2,54€	1x 490x13mm for extruder + 2x 300x5mm for bed and x moto

Section Total: 54,45€

Totals

Best Parts Total: 733,22€

Best Price Total: 626,60€