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Railcore II 300ZL/ZLT BOM
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Note: The kit comes in many possible variations. The base/required components are listed first, then the options.
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Note: This BOM includes several upgrades that other BOMs and kits may not contain.
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Note: If building with alternate sources, be sure to read the notes.
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Item NamePriceQtyTotal
US Source 1
NotesUS Source 2US Source 2 NotesEU SourceEU Source Notes
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FRAME COMPONENTS
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15x15 Corners (8)$1.498$11.92FilastruderUsed to join together lengths of extrusionAmazonAmazon is more $$$High Temp 3D
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MOTION COMPONENTS
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Gates 2GT Belt+Pulleys+Idler Set$74.991$74.99FilastruderPulleys, idlers, and belt for CoreXY belt path
No other known source for a full kit, but belt, idlers, and pulleys can be sourced separately from a number of places (E3D, PrintedSolid). Watch out for clones on Amazon, and note that 2GT is not the same as GT2.
High Temp 3D
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25mm Shoulder Bolts$1.994$7.96FilastruderHolds idlers for CoreXY belt pathMcMasterMcMaster is more $$$High Temp 3D
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12mm Shoulder Bolts$1.992$3.98FilastruderHolds idlers for CoreXY belt pathMcMasterMcMaster is more $$$High Temp 3D
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Shims (30-pk)$9.991$9.99FilastruderUsed between idlers for CoreXY belt pathAmazonAmazon is more $$$High Temp 3D
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Aluminum Idler Mounts (set)$24.991$24.99FilastruderPrintable versions available (see github), but aluminum is worth it here
Mandala Rose Works
Direct from mfgrHigh Temp 3D
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Aluminum X/Y Stepper Mounts$24.991$24.99FilastruderPrintable versions available (see github), but aluminum is worth it here
Mandala Rose Works
Direct from mfgrHigh Temp 3D
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Aluminum X carriages$45.001$45.00FilastruderPrintable versions available (see github), but aluminum is worth it here
Mandala Rose Works
Direct from mfgrHigh Temp 3D
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5mm to 8mm Coupling$4.993$14.97FilastruderJoins stepper motors to Z-axis leadscrewsZYLtech
Direct from mfgr, a little cheaper but there's shipping cost.
From LDO
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HARDWARE
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Hardware Bag$59.991$59.99FilastruderSee tab below if you want to DIYProjectR3D
BHCS more prone to stripping, inserts not as strong as Ultrasert parts
High Temp 3D
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ELECTRONICS
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Wiring Harness$119.991$119.99FilastruderSee tab below if you want to DIYProjectR3D
PR3D's harness uses a different power jack/inlet, it is only single fused, unfiltered, and dimensions are a little different. Otherwise similar to Filastruder wiring harness.
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Meanwell LRS-200-24$29.991$29.99FilastruderAlso available other places, LRS-350-24 also OK but louderAmazonAmazon is more $$$
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NEMA 17 steppers for x/y/z/e$84.991$84.99FilastruderNote that all steppers should be 0.9deg, to match T8x4 leadscrews
No other source with all 0.9deg steppers in a kit currently, but can be sourced separately.
High Temp 3Dhttps://hightemp3d.com/search?q=ldo+high+temperature+stepper+motor
Only high temp rated available
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BLTouch$34.991$34.99FilastruderZ-axis / bed probeAmazonAmazon is more $$$
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Power Cable, 16awg$1.991$1.99FilastruderAny 6ft, 16awg or thicker cable is OK - you may already have oneAmazon
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EXTRUDER
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Bondtech BMG$79.991$79.99FilastruderOrder the "Standard" versionPrinted Solid Bondtech
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E3D Bowden Coupler$7.991$7.99FilastruderBe sure to select "1.75mm" and "Groovemount"Printed Solid Bondtech
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PRINTED PARTS
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Printed Parts for ZL/ZLT$119.991$119.99Filastruder
If buying metal yokes/Z-brackets, bag 2 is not needed. See tab below to DIY
ProjectR3D
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MISC
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5.5mm Nut Driver$3.991$3.99FilastruderMakes assembly easier, is an uncommon toolAliExpress
Cheaper, but longer shipping
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2.5mm Hex Driver$3.991$3.99FilastruderMakes assembly easier, is an uncommon toolAmazonAmazon is more $$$
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1 meter of 2mmID 4mmOD PTFE$1.001$1.00FilastruderReverse bowden, runs from printhead to side of printer
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Payment for support provided by Tony/Steve$60.00
Recommended to give to the creators who provide assembly/use support
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$1,854.48
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Panels/Extrusions/Leadscrews (Choose ZL Parts or ZLT Parts)
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ZL PartsZL HDPE Panel Set$119.991$119.99FilastruderFilastruder panels textured on both sides with logo at topPrinted SolidHigh Temp 3D
Stainless steel, thinner but equally stiff
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1515 Extrusion Set, pretapped with bottom brace$89.991$89.99FilastruderSee tab below if you want to DIYProjectR3DHigh Temp 3D
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400mm, T8X4 Leadscrew$12.993$38.97FilastruderT8x4 recommended by jstevewhite & kraegarHigh Temp 3D
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T8x4 POM Antibacklash Nut$5.993$17.97FilastruderT8x4 recommended by jstevewhite & kraegarHigh Temp 3D
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Bed Heater, special length leads, 150C thermal cutoff$89.991$89.99FilastruderRecently added thermal cutoff, see tab below if you want to DIY
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ZLT PartsZLT HDPE Panel Set$174.991$174.99FilastruderSide panels, needed for stiffnessPrinted SolidHigh Temp 3D
Stainless steel, thinner but equally stiff
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1515 Extrusion Set, pretapped with bottom brace$99.991$99.99FilastruderSee tab below if you want to DIYProjectR3DHigh Temp 3D
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700mm, T8X4 Leadscrew$16.993$50.97FilastruderT8x4 recommended by jstevewhite & kraegarHigh Temp 3D
Only with brass antibacklash nut
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T8x4 POM Antibacklash Nut$5.993$17.97FilastruderT8x4 recommended by jstevewhite & kraegarHigh Temp 3D
Only with brass antibacklash nut
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Bed Heater, special length leads, 150C thermal cutoff$89.991$89.99FilastruderRecently added thermal cutoff, see tab below if you want to DIY
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Z-Yokes$75.001$75.00FilastruderReplaces the printed Z-yokes. Stiffer, and can handle higher temps
Mandala Rose Works
High Temp 3D
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Z-Brackets$125.001$125.00FilastruderTakes the place of the printed Z-brackets. Stiffer.
Mandala Rose Works
High Temp 3D
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Linear Rails (Choose a ZL or ZLT option, LDO and Misumi are available, 6 rails total are needed)
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ZLLDO 400mm Linear Rails with MGN12H Carriages$34.996$209.94FilastruderHigh Temp 3D
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ZLTLDO 400mm Linear Rails with MGN12H Carriages$34.993$104.97FilastruderHigh Temp 3D
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LDO 700mm Linear Rails with MGN12H Carriages$59.993$179.97FilastruderHigh Temp 3D
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ZLMisumi 395mm Linear Rails (SELB13-395)$94.996$569.94FilastruderHigh Temp 3D
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ZLTMisumi 395mm Linear Rails (SELB13-395)$94.993$284.97FilastruderHigh Temp 3D
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LDO 700mm Linear Rails with MGN12H Carriages$59.993$179.97FilastruderHigh Temp 3D
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Hotend (choose one of the following 3 options)
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E3D
E3D V6 Ultimate Edition (24V) (no cables or PTFE needed)
$94.991$94.99FilastruderBe sure to order the 24v version
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E3D Groove Mount & Retainer (Printed Part)$0.001$0.00Filastruder
See Printed Parts tab below, or use a metal mount from MRW or 713Maker
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Slice MosquitoSlice Mosquito Hotend w/24v fan$149.991$149.99Filastruder
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E3D 24v/40w Premium Heater$15.991$15.99FilastruderChoose W/ Cable. Slice's heater is more expensive
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E3D Themistor Cartridge$5.491$5.49FilastruderChoose W/ Cable. Slice thermistor has low sensitivity at low/high temps
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Slice Engineering Vanadium Nozzle$34.991$34.99Filastruder
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Slice Engineering Groovemount Adaptor$12.001$12.00FilastruderNot required if using MRW native Mosquito Mount
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Small packet of Slice Engineering Boron Nitride Paste$9.991$9.99Filastruder
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Slice Mosquito Groove Mount & Retainer (Printed Part)$0.001$0.00Filastruder
See Printed Parts tab below, or use a metal mount from MRW or 713Maker
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Slice Mosquito MagnumSlice Mosquito Hotend w/24v fan$174.991$174.99Filastruder
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E3D 24v/40w Premium Heater$15.991$15.99FilastruderChoose W/ Cable. Slice's heater is more expensive
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E3D Themistor Cartridge$5.491$5.49FilastruderChoose W/ Cable. Slice thermistor has low sensitivity at low/high temps
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Slice Engineering Vanadium Nozzle$34.991$34.99Filastruder
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Slice Engineering Groovemount Adaptor$12.001$12.00FilastruderNot required if using MRW native Mosquito Mount
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Small packet of Slice Engineering Boron Nitride Paste$9.991$9.99Filastruder
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Slice Mosquito Groove Mount & Retainer (Printed Part)$0.001$0.00Filastruder
See Printed Parts tab below, or use a metal mount from MRW or 713Maker
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Electronics (Choose one option. WIring harness is for Duet 2 series at this time)
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D2WDuet 2 Wifi$169.991$169.99Filastruder High Temp 3D
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Duex5$104.991$104.99Filastruder High Temp 3D
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D2WeDuet 2 Wifi External Antenna$179.991$179.99Filastruder High Temp 3D
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Duex5104.991104.99Filastruder High Temp 3D
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D2EDuet 2 Ethernet$179.991$179.99Filastruder High Temp 3D
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Duex5$104.991$104.99Filastruder High Temp 3D
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D3Duet 3 6HC$229.991$229.99FilastruderIf going Duet3, check out the wiring adapters hereHigh Temp 3D
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Bed (choose one)
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Std.Standard Bed$74.991$74.99FilastruderNote that no surface is included, PEI is recommended713 Maker
Cheaper from 713, but consider shipping
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PEI 12x12 Print surface$14.991$14.99FilastruderAmazon
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Mag.Magnetic Bed$205.001$205.00FilastruderNote that no build plate is included, you will need a build plate
Mandala Rose Works
High Temp 3D
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Magnetic Build Sheet74.991$74.99FilastruderBuildtak is another good option hereHigh Temp 3D
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Brand is Energetic
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Display (optional, not required)