Simple ER11 drill vacuum 52mm turbine

thingiverse

Many thanks to harmane http://www.thingiverse.com/harmane/about for his idea of vacuum trubine tool http://www.thingiverse.com/thing:496290 I try to make it and find it to complex to print. so I decide to make very simple trubine. external size match 52mm http://www.ebay.com/itm/300w-12000RPM-Spindle-Motor-Mount-Bracket-12V-48V-Engraver-Cutter-Marker-CNC-/121245097542?pt=LH_DefaultDomain_0&hash=item1c3ac55e46 to make it you need 2pcs high speed ball bearing, 8x16x5 mm size, ABEC-7 qulity is the best. I find it at ebay http://www.ebay.com/itm/8x16x5-mm-Stainless-Metal-Shield-Ball-Bearings-ABEC-7-SMR688-ZZ-A7-AF2-/251868279954 1pcs ER11A 8mm Straight Shank Chuck with key http://www.ebay.com/itm/C8-ER11M-100L-Straight-Shank-Chuck-Wrench-Deep-Processing-for-CNC-Milling-/191238774516?pt=LH_DefaultDomain_15&hash=item2c86b81ef4 1pcs ER11 1/8" spring collet http://www.ebay.com/itm/ER11-Spring-Collet-Holder-Tool-for-CNC-Workholding-milling-Lathe-tool-1-8-/291269051426?pt=LH_DefaultDomain_15&hash=item43d0fd0422 8pcs m3 60mm long bolt and nut http://www.ebay.com/itm/3mm-x-60mm-SLOTTED-CHEESEHEAD-MACHINE-SCREWS-M3-NUTS-AND-WASHERS-NEW-PACK-OF-5-/261041368296?pt=LH_DefaultDomain_3&hash=item3cc7472ce8 print 1 turbine housing, 1 vacuum hose, 2 ball bearing holder, 2-4 bearing cover, 1 turbine blade from harmane http://www.thingiverse.com/download:820170 maybe you need also good luck, 3mm drill, vacuum you can tune scad files to match your vacuum hose diameter unfortunately, I didn`t save scad files for bearing holder and cover, only stl available :( at video http://youtu.be/WSDnS4di9K0 you can see result. its 0.3mm drill and I think less than 0.1mm runout. at maximum its difficult to stop it by hands first put bearing in holder after put it on shaft using clamp (for example this http://www.ebay.com/itm/Heavy-Duty-Quick-Grip-6-12-Trigger-Speed-Clamp-woodwork-carpenter-spreader-/371222873026?pt=LH_DefaultDomain_0&var=&hash=item566e9b83c2 ) using LM8UU liner bearing put it in right position up to 8000 rpm Instructions prepare er11 shaft, 2 ball bearings, printed parts: bearing cover, bearing holder, bearing cover, turbine blade, turbine housing, bearing cover, bearing holder, bearing cover, vacuum hose, 8 m3 bolts, 8 m3 nuts prepare instruments: drill, 3.0mm or #31/#32 numbered drill bit, carpenters clamp, 2 8mm linear bearings (used as instruments), 5.5mm wrench for nuts and screwdriver for the bolts check all parts, remove brims, check holes for bolts, drill it if needed take ball bearing, using clamp put it carefully inside bearing holder, repeat for second ball bearing take shaft, remove nut and collet, be careful with shaft read "mounting" section of "bearing installation guide" (page 13) http://www.skf.com/binary/tcm:12-114679/140-710%20BIMG%2011_2012_tcm_12-114679.pdf place the first bearing cover on the shaft place the first bearing holder (with inserted ball bearing) on the shaft using clamp mount the ball bearing take linear bearings and using it with clamp put the ball bearing to the right position, remove linear bearings place second bearing cover on the shaft place the turbine blade on the shaft insert assembled shaft in to the housing place the third bearing cover on the shaft place the second bearing holder with inserted bearing on the shaft using clamp and linear bearings, remove linear bearings place the forth bearing cover on the shaft insert the bolts into the holes of vacuum hose holder attach the vacuum hose holder to the assembled turbine use google search for the pictures for the string "flange bolt tightening sequence" for example this http://www.wermac.org/images/bolt_sequence.gif tight the bolts and nuts according the sequence assembly chuck with the collet and the nut, insert 1/8" drill bit into the collet, tight carefully. Don`t tight the nut without collet! check for smooth shaft rotation, attach the vacuum, power it. safety first! be careful of moving parts, drills, drill bits, collet nuts, etc. Use glasses! Extremely recommended to read safety guides like this http://www.ihsa.ca/rtf/health_safety_manual/pdfs/tools_and_techniques/Power_Tools_Drills.pdf