FAQ: http://www.thingiverse.com/shivinteger/about

[>>>] Generating Attributions log:

[0] Thing Title : Parametric Gear Pulley Hole Resizing (Mendel Drive Pulley)
[0] Thing URL : http://www.thingiverse.com/thing:2126
[0] Thing Author : nicholasclewis
[0] Thing Licence : Creative Commons - Attribution

[1] Thing Title : ZelosLaser Cutter 2.0 : Open Source, Sturdy & Versatile
[1] Thing URL : http://www.thingiverse.com/thing:802813
[1] Thing Author : zelos113
[1] Thing Licence : Creative Commons - Attribution

[2] Thing Title : Delta 6" Professional Joiner Depth Setting Replacement Knob
[2] Thing URL : http://www.thingiverse.com/thing:1114301
[2] Thing Author : gzumwalt
[2] Thing Licence : Creative Commons - Attribution

[3] Thing Title : The Device
[3] Thing URL : http://www.thingiverse.com/thing:1309833
[3] Thing Author : eanator
[3] Thing Licence : Creative Commons - Attribution

[4] Thing Title : DreamMaker Overlord 3D, Center Nozzle
[4] Thing URL : http://www.thingiverse.com/thing:1390987
[4] Thing Author : jonny925
[4] Thing Licence : Creative Commons - Attribution

[5] Thing Title : Spring Thing
[5] Thing URL : http://www.thingiverse.com/thing:1415231
[5] Thing Author : dylan77
[5] Thing Licence : Creative Commons - Attribution

[+] Attributions logged

[+] Getting object #0
[<] Importing : downloads/1114301/Knob.stl
[+] Cleaning non manifold
[!] Total removed V: -0.06%, E: -0.08%, F: -0.08%
[+] Preparing : Knob

[+] Getting object #1
[<] Importing : downloads/802813/4x_griff_innen_abstandshalter.stl
[+] Cleaning non manifold
[!] Total removed V: 0.00%, E: 0.00%, F: 0.00%
[+] Preparing : 4X Griff Innen Abstandshalter
[+] Rotating object = 4X Griff Innen Abstandshalter
[!] Volume difference is 0.75%
[+] Scaled 4X Griff Innen Abstandshalter by 237.63%
[+] Created duplicate : Knob.001
[+] Staging objects : BOTH_BOTTOM
[+] Union between : Knob.001 & 4X Griff Innen Abstandshalter
[!] Number of faces #1 : 62815 + number of faces #2 : 1180 = 63995
[!] Number of faces of union: 63618
[+] Cleaning non manifold
[!] Total removed V: -0.00%, E: -0.00%, F: 0.00%

[+] Getting object #2
[<] Importing : downloads/1415231/spring.stl
[+] Cleaning non manifold
[!] Total removed V: 0.00%, E: 0.00%, F: 0.00%
[+] Preparing : Spring
[+] Rotating object = Spring
[!] Volume difference is 0.14%
[+] Scaled Spring by 417.31%
[+] Created duplicate : Knob.000
[+] Staging objects : ON_RIGHT
[+] Union between : Knob.000 & Spring
[!] Number of faces #1 : 63618 + number of faces #2 : 1864 = 65482
[!] Number of faces of union: 64902
[+] Cleaning non manifold
[!] Total removed V: -0.01%, E: -0.01%, F: -0.01%

[+] Getting object #3
[<] Importing : downloads/2126/drive-pulley_3off.stl
[+] Cleaning non manifold
[!] Total removed V: 0.00%, E: 0.00%, F: 0.00%
[+] Preparing : Drive-Pulley 3Off
[+] Rotating object = Drive-Pulley 3Off
[!] Volume difference is 1.68%
[+] Scaled Drive-Pulley 3Off by 181.18%
[+] Created duplicate : Knob.001
[+] Staging objects : BOTH_RIGHT
[+] Union between : Knob.001 & Drive-Pulley 3Off
[!] Number of faces #1 : 64898 + number of faces #2 : 168 = 65066
[!] Number of faces of union: 63051
[+] Cleaning non manifold
[!] Total removed V: -0.03%, E: -0.02%, F: -0.02%

[+] Getting object #4
[<] Importing : downloads/1309833/the_device.stl
[+] Cleaning non manifold
[!] Total removed V: -0.75%, E: -0.75%, F: -0.75%
[+] Preparing : The Device
[+] Rotating object = The Device
[!] Volume difference is 1.40%
[+] Scaled The Device by 192.79%
[+] Created duplicate : Knob.000
[+] Staging objects : BOTH_LEFT
[+] Union between : Knob.000 & The Device
[!] Number of faces #1 : 63041 + number of faces #2 : 1554 = 64595
[!] Number of faces of union: 52603
[+] Cleaning non manifold
[!] Total removed V: -0.18%, E: -0.14%, F: -0.11%

[+] Getting object #5
[<] Importing : downloads/1390987/CenteringBracket.stl
[+] Cleaning non manifold
[!] Total removed V: 0.00%, E: 0.00%, F: 0.00%
[+] Preparing : CenteringBracket
[+] Rotating object = CenteringBracket
[!] Volume difference is 1.99%
[+] Scaled CenteringBracket by 171.22%
[+] Created duplicate : Knob.001
[+] Staging objects : ON_TOP
[+] Union between : Knob.001 & CenteringBracket
[!] Number of faces #1 : 52546 + number of faces #2 : 828 = 53374
[!] Number of faces of union: 53447
[+] Cleaning non manifold
[!] Total removed V: 0.00%, E: 0.00%, F: 0.00%

[>] Exporting STL to : /uploads/20160418-0420-11