Building the Root 2 CNC Multitool Router/Bill of Materials and Estimated Costs

Most of these parts can be cheaply found on ebay if you search around a little bit. Be aware that if you order parts from Hong Kong or China there will likely be a wait time of 1 or 2 months for the part to arrive. US sellers will cost slightly more but are useful if you are part way through the build and need that part right way. Otherwise a good approach is to just buy the parts ahead of time a little at a time so that about the time you need them they arrive. Keep an eye out for any coupons or sales ebay has. High cost items like the spindle or stepper motors could be bought for a nice discount. Plastic Parts NameAxisQuanityRoot 2 CNC - Y gantry assm-1 Y-Axis Belt Clamp GT2Y2Root 2 CNC - Y gantry assm-1 Y Motion Bearing MountY4Root 2 CNC - Y gantry assm-1 Y Drag Chain CarriageY1Root 2 CNC - Y gantry assm-1 X-Axis Carriage Y Drag Chain MountY1Root 2 CNC - Y gantry assm-1 X-Axis Carriage Y Drag Chain Mount IdlerY1Root 2 CNC - Y gantry assm-1 X-Axis Belt ClampY2Root 2 CNC - Y gantry assm-1 X-Axis Box Bar MountY2Root 2 CNC - Y gantry assm-1 Dirt CoverY2Root 2 CNC - X carriage-1 Z-Axis Motor MountX1Root 2 CNC - X carriage-1 Z carriage-1 Spindle Upper ClampX1Root 2 CNC - X carriage-1 Z carriage-1 Spindle Lower ClampX1Root 2 CNC - X carriage-1 X-Axis Motor MountX1Root 2 CNC - X carriage-1 X-Axis Carriage Drag Chain Mount IdlerX1Root 2 CNC - X carriage-1 linear rail 90 bearing mount Y-Axis CarriageX2Root 2 CNC - X carriage-1 3M Pulley 32T 5mmX1Root 2 CNC - X carriage-1 3M Pulley 22T 8mmX1Root 2 CNC - Ramps controller-1 Ramps Case Lid1Root 2 CNC - Ramps controller-1 Ramps Case Base1Root 2 CNC - Base and Y axis assm-1 Y-Axis Bar MountY1Root 2 CNC - Base and Y axis assm-1 Y-Axis Bar Mount IdlerY1Root 2 CNC - Base and Y axis assm-1 Y-Axis Bar Mount Idler MirrorY1Root 2 CNC - Base and Y axis assm-1 Y-Axis Bar Mount MirrorY1Root 2 CNC - Base and Y axis assm-1 Y-Axis Motor MountY1Root 2 CNC - Base and Y axis assm-1 Y-Axis Motor Mount MirrorY1Root 2 CNC - Base and Y axis assm-1 Y-Axis Drag ChainY1Root 2 CNC - Base and Y axis assm-1 3M Pulley 48T 8mmY1Root 2 CNC - Base and Y axis assm-1 3M Pulley 24T 5mmY1Root 2 CNC - Base and Y axis assm- FootY4 Electronics NameAmountEstimated CostCommentsArduino Mega 1$10.95 - $46Non-genuine Arduino is cheaper but I am still unsure of the quality versus a real oneRamps 1.41$7.57Ebay and Amazon give many options. These can be pre-built or even kits that you can assemble yourself.DRV8825 (Optional but preferred over the A4988)3$4.74Nema 17 Stepper motors (Get the Highest torque possible)3$57Users have reported success with the 17HS19-2004S1 model from ebay number 231427537485 by the user account stepperonline60mm DC Fan1Endstop micro switches (KW11 I drilled the whole to 3mm to screw then in to the plastic parts)6$1.26These are cheaply found on ebayDC Spindle (52mm Diameter - Get the highest wattage, you will be thank full later on)1Diode This is needed if using the heatbed Mosfet on the ramps to control the spindle - google Mosfet switching inductive loads for more information14 core AWG26 cable (use for motor wiring and endstops)$9.84 Total estimated cost: $91.09 Fixings It seems to make sense for some of the items to just buy a 100 pack of them. This way you know you will have enough and also it can help build up your supplies for these parts. Ebay or Amazon are good sources for most of these parts. Local hardware stores may also have these items, however, those prices tend to be higher than can be found online. Some of the prices below are the price to buy a few extra parts for example I bought 30 M8 Tee Nuts for $3.99 but I only needed 16 of them. NameAmountEstimated CostCommentsM8 nuts100$5M8x25 bolts24$9.99These bolts are used to: Attach the bearings to the Y Motion Bearing MountM3 nuts100$3.99M4 nuts100$4.99M3 washers100$2.24M4 Washers100$2.60M8 washers100$5.29M8 Tee Nuts16$3.99M3 9mm Penny Washers100$5.94M8 80mm bolt10$15.68These are used to clamp the Y Motion Bearing Mounts together. Threaded rod can also be used.M3x30 bolt100$9.94These seem to about the right length for attaching the Y axis mounts to the base. Different size may be needed based on the thickness of the baseboard. Bearings NameAmountEstimated CostComments608 Bearings36LM10UU4 Metal Work NameAmountEstimated CostCommentsAluminum Box section (X-Axis and Y-Axis) 25x25x496x3mm (W,D,L,T)4$14Online this was costing a lot, but a local shops did seem to have it for a lot cheaper.M8 Smooth Rod 580mm1M8 Threaded Rod 85 mm8M8 Threaded Rod 500 mm1M8 Threaded Rod 200 mm2M8 Threaded Rod 230 mm1M8 Threaded Rod 100 mm2M10 Smooth Rod 185 mm2 Motion NameAmountEstimated CostCommentsGT2 Belt (Length depending on size of the machine)1GT2 36T Pulley 8mm Bore23M-210T-06 Belt1 $4.25 a piece Used to drive the Y-axis. If using two motors on the Y-axis then you will need two of them. Searching for 210-3M-06 on ebay turns up results.3M-264T-06 HTD1GT2 16T Pulley 5mm Bore1Drag Chain 20 x 10 mm 1m Length2 Wood 2x Wood Side Panel 1x Wood Base