Upgrades for Ultimaker 2 Clone with RAMPS 1.4 ver1.01

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Hello! Exciting updates ahead! Easier prints are here! Check out the ver1.0 Ultimaker Clone with RAMPS 1.4 at http://www.thingiverse.com/thing:1178406 Here's what's new: 1) A 3mm filament geared extruder block that can be retrofitted onto the original extruder. Note: Marlin firmware (Configuration.h) 'step/mm' for extruder needs to be adjusted with the increased gear ratio, e.g., multiply by 2.25 for a 16T and 36T setup. Or, try this alternative: https://www.youmagine.com/designs/belt-geared-um2-feeder-upgrade The Bill of Materials is as follows: * 2 x MF105zz Flanged Ball Bearings (5mmX10mmX4mm) * 1 x 5mm diameter, 50mm length, stainless steel dowel pins * 1 x 55 teeth, 110mm, 6mm width, GT2 timing belt * 1 x 16T, 5mm bore, drive pulley * 1 x 36T, 5mm bore, drive pulley * 1 X MK8 Extruder Drive Gear, 5mm bore (this one seems to perform better than the original Knurled gear) Get your filament feeder from: https://www.youmagine.com/designs/alternative-um2-feeder-version-two The Vital Bill of Materials includes: * 1 x U604ZZ Bearing U-Groove 4X13X4mm And that's not all! The XY slider block is now even easier to print and assemble, requiring just two symmetrical parts. Plus, the fan duct reducer lets you convert a 40mm fan to a cheaper, more widely available 30mm fan.