Spool Holder adjustable with bearings for Prusa i3 MK3S

prusaprinters

<p>Spool Holder adjustable with bearings for Prusa i3 MK3S</p> <p>Original spool holder (no printed double holder) delivered with original Prusa MK3S is not good for smooth unwinding filament.<br/> So I designed and created my own.</p> <ul> <li>adjustable for Filament spool PM and Filament spool Prusament</li> <li>easy unload/load of Filament spool</li> <li>easy mounting/demounting and positioning of bracket arms</li> <li>very easy unwinding (minimal rolling resistance)</li> <li>adjustable unwinding resistence [upgraded version]</li> </ul> <p>printed parts, material PETG:<br/> [layer height=0,2mm][Infill=30% Grid][vertical shells perimeters=3]</p> <p>Pos-001b_Center bolt <a href="replace Pos-001a">revision "b"</a><br/> Pos-002_Center nut</p> <p>printed parts, material PETG:<br/> [layer height=0,2mm][Infill=20% Grid][vertical shells perimeters=3]</p> <p>Pos-003-01a_Holder arm L <a href="replace Pos-003-01">revision "a"</a><br/> Pos-003-02_Holder L<br/> Pos-004-01_Holder arm R<br/> Pos-004-02_Holder R</p> <p>printed parts, material PETG:<br/> [layer height=0,15mm][Infill=50% Grid][vertical shells perimeters=3]</p> <p>Pos-005_brake holder<br/> Pos-008_closing screw<br/> Pos-007_brake disc (alternative for steel ISO7093-1 washer modified)</p> <p>printed parts, material PETG:<br/> [layer height=0,15mm][Infill=30% Grid][vertical shells perimeters=3]</p> <p>Pos-006_marking template [for steel washer as brake disc]</p> <p>purchased material:<br/> 2x KINEX Ball bearing 606-2Z (606ZZ)<br/> 1x Rohr 8x1 AL length=102mm<br/> 1x DIN 976A Threaded rod M6 length=160mm<br/> 4x DIN 985 Hexagon nut with polyamide thread lock M6<br/> 4x ISO 4762 Hexagon socket head cap screw M3x16<br/> 4x ISO 4032 Hexagon nut M3<br/> 3x DIN 7991 Countersunk flat head screw M3x10 (M3x8)</p> <p>"brake disk"<br/> ISO 7093-1 Washer 16 (d17xD50xh3) modification see on drawing sheet 2<br/> alternatively Pos-007_brake disc</p> <p>"brake pad"<br/> MIRELON PRO (polyethylene foam, insulation of water pipe)</p> <hr/> <p>Update - revision<br/> Pos-001a_Center bolt (revision "a")</p> <p>"Pos-001a_Center bolt " more universal. (upgrade for narrower filament spools)</p> <hr/> <p>UPGRADE<br/> Adjustable "brake" for optimal unwinding resistance.</p> <p>Pos-001b_Center bolt <a href="replace Pos-001a">revision "b"</a><br/> Pos-003-01a_Holder arm L <a href="replace Pos-003-01">revision "a"</a><br/> Pos-005_brake holder (new part)<br/> Pos-008_closing screw (new part)</p> <p>"brake disk"<br/> ISO 7093-1 Washer 16 (d17xD50xh3) modification see on drawing sheet 2<br/> alternatively Pos-007_brake disc (new part)</p> <p>"brake pad"<br/> MIRELON PRO (polyethylene foam, insulation of water pipes)</p> <p>3x DIN7991 Countersunk flat head screw M3x10<br/> (alternatively M3x8 for plastic brake disc )</p> <h3>Print instructions</h3><p>Slic3r Prusa Edition settings:<br/> 0,20mm QUALITY MK3 (for Pos 001 002 003 004)<br/> 0,15mm QUALITY MK3 (for Pos 005 006 007 008)<br/> Prusament PETG<br/> Original Prusa i3 MK3S</p> <p>layer height = 0.2mm (for Pos 001 002 003 004)<br/> layer height = 0.15mm (for Pos 005 006 007 008)<br/> vertical shells perimeters = 3<br/> Infill=30% Grid (for Pos 001 002 006)<br/> Infill=20% Grid (for Pos 003-01 003-02 004-01 004-02)<br/> Infill=50% Grid (for Pos 005 007 008)</p> <p>printing time:<br/> 6h 59min [Pos 001+002]<br/> 7h 52min [Pos 003-01+02 + 004-01+02]<br/> 1h 17min [Pos 005+008]<br/> 0h 34min [Pos 006]<br/> 0h 33min [Pos 007]</p>