Prusa Mini Custom Build

prusaprinters

Update:2021.12.24 $ Just a head up: If you just want the mk3s style extruder, you have to print !P-108-MINI-z-carriage-rear-for-MK3S-extruder.stl!, otherwise the holes won't match(not compatible with original prusa mini z-carriage-back part). 2021.07.16 $ New extrusion system(Prusa MK3S style 1:1 extruder, you can reuse BMG gears from previous versions of this printer) $ New part for mk3s extruder (P-108-MINI-z-carriage-rear-for-MK3S-extruder.stl){ Removed: MINI-z-carriage-rear.stl P-110-MINI-extruder-section-with-ir-filament-sensor.stlAdded: P-108-MINI-z-carriage-rear-for-MK3S-extruder.stl P-110-MINI-MK3S-style-extruder-section-bmg-version-with-ir-filament-runout-sensor.stl }2021.07.13 $ New join-plate-with-Z-carriage + 95mm 3030 extrusion(Z-Axis Modification) $ Adding front part cooling fan2021.04.22 $ Set up sensorless homing $ Lift Y carriage up by 5mm (spacers in the file section) to clear out front/back plate. $ Z axis smooth rod (10mm) length changed from (321mm) to (330mm). $ Upload new controller board case (rear cooling fan and LCD cable cut-out).2021.03.12 Update part list.2021.03.08 Upload new y front plate : the hexy plate.2021.03.07 $ Scale up build area from 150x140 to 180x180 $ Part list updated.2021.03.01 Upgraded to 32bit MKS Robin E3D.Firmware Repo: <a href="https://github.com/foobarjimmy/MKS-Robin-E3D-1.1-Marlin-2.0.6.1">Marlin 2.0.6.1 for prusa mini custom build on MKS Robin E3D V1.1</a>Instructions&compiled_firmware Repo: <a href="https://github.com/foobarjimmy/custom_prusa_mini">Wiring&Precompiled firmware for prusa mini custom build</a>Test run videos: <a href="https://www.youtube.com/watch?v=LuQsIcRhQhw">DIY mini printer</a>Inspired by: <a href="https://www.thingiverse.com/thing:4437295">Prusa-Mini DIY</a> by <a href="/taufiq/designs">@taufiq</a> <a href="https://www.thingiverse.com/thing:4179460">Prusa Mini Extruder Section - BMG Version</a> <a href="https://www.prusaprinters.org/prints/42554-original-prusa-mini-e3d-v6-hotend/comments">Prusa Mini E3dv6 Hot-End</a> <a href="https://www.thingiverse.com/thing:4165743">Prusa Mini Heatsink clone</a> <a href="https://www.prusaprinters.org/prints/58842-prusa-mini-z-axis-modification">Prusa Mini Z-Axis Modification</a>other useful component refers: <a href="https://www.thingiverse.com/thing:4079300">Prusa Mini Rubber Feet Upgrade</a> <a href="https://www.thingiverse.com/thing:2909802">Vertical 2020/3030 Bearing Spool Holder</a> <a href="https://www.thingiverse.com/thing:4009678">M3 Square Nut for 3030</a> <a href="https://www.thingiverse.com/thing:3663001">M5 T-nut for 3030</a> <a href="https://www.thingiverse.com/thing:922868">Cable Tie Mounting Pad</a> <a href="https://www.thingiverse.com/thing:2735495">Linear Rail Slot Covers 3030 Extrusion (for hide wire from Z motor)</a><h3>Introduction</h3>This is my version of Mini Prusa.The idea behind it was that after building my Prusa MK3s I realized that I have accumulated quite some spare parts over time,so there it is, A fully functional secondary printer built mostly from spare parts.In doing so the size of the printer is W/H/D 330mm x 320mm x 350mm with a build area of 175mm(X) x 175(Y)mm x 120(Z)mm. (Bed size pre-defined in the firmware is 175175, but it can be scaled up to 180180).I've tried out plastic extrusions on y-axis, it kinda works but was somewhat wobbly. I wouldn't recommand plastic 3030 as it is not being stable enough.PS:After setting up sensorless homing for TMC2209, remember to LOAD hard-coded defaults using "M502",then "M500" to save X&Y homing sensitivity to EEPROM.These two value will NOT be updated by flashing the firmware while migrating from normal machanical endstop system to the new sensorless homing system.<h3>Custom Prusa Mini Parts List:</h3><h3>Printed Parts (exclude hotend assembly)</h3><h3>! Original Parts !</h3><ul><li>1x MINI-knob.stl</li><li>1x MINI-minda-holder-8mm.stl (or P-114-MINI-minda-holder-12mm.stl if you have a 12mm sensor)</li><li>1x MINI-x-carriage.stl</li><li>1x MINI-x-end.stl</li><li>1x MINI-y-belt-holder.stl</li><li>1x MINI-y-idler.stl</li><li>1x MINI-y-plate-front.stl (or P-115-MINI-hexy-y-plate-front.stl)</li><li>1x MINI-y-plate-rear.stl</li><li>1x MINI-z-carriage-front.stl</li><li>1x MINI-z-top.stl ! Custom Parts !</li><li>1x P-100-MINI-z-bottom-mks-robin-e3d-v1.1-case-Z-mod.stl</li><li>1x P-101-MINI-z-bottom-cover.stl</li><li>1x P-103-MINI-heatsink-fan-holder.stl</li><li>1x P-104-MINI-heatsink-clamp.stl</li><li>1x P-105-MINI-frontfan-holder.stl</li><li>1x P-106-MINI-join-plate-with-z-carriage.stl</li><li>1x P-107-MINI-Y-Extrusion-to-Z-extrusion-3030-Angle.stl</li><li>1x P-108-MINI-z-carriage-rear-for-MK3S-extruder.stl</li><li>1x P-109-MINI-lcd-display-128x64-box.stl</li><li>1x P-110-MINI-MK3S-style-extruder-section-bmg-version-with-ir-filament-runout-sensor.stl</li><li>1x P-111-MINI-y-carriage-with-spacer.stl(update@2021.07.13)(! Print y-carriage with PETG or ABS ! ! or it will sag and make contact with y-front/back-plate !)</li><li>4x P-112-MINI-y-carriage-bearing-strap.stl Print settings:</li><li>3 Perimeters</li><li>4 top/bottom layers</li><li>0.2mm layer height</li><li>40% infill</li><li>May require custom support(brushed support enforcer in prusaslicer works best) Metal Parts:</li></ul><h3>X-axis</h3><ul><li>2x 279mm smooth rod (D=8mm)(x-axis rod) Y-axis</li><li>2x 3030 extrusion (262mm)(y-axis 3030 extrusion)</li><li>2x smooth rod (D=8mm)(279mm)(y-axis rod) Z-axis</li><li>1x 3030 extrusion (289mm)(z-axis)</li><li>1x 3030 extrusion (95mm)(Y-to-Z-Base)(update@2021.07.13)(NEW!)</li><li>2x smooth rod (D=10mm)(330mm !!)</li><li>1x 8mm threaded rod (300mm)</li><li>1x T8 threaded rod lead screw(metal or POM)</li><li>1x Z Axis Trapezoid Motor Screw Nuts(POM Nuts) for Prusa i3 MK3s E-axis</li><li>1x <a href="https://www.aliexpress.com/item/4000817746128.html?spm=a2g0o.productlist.0.0.59137b28cR0cub&algo_pvid=63f593af-37b7-4ac3-b31a-d0ca690cba3c&algo_exp_id=63f593af-37b7-4ac3-b31a-d0ca690cba3c-0">MK3S extruder gears kit</a> Fixings</li><li>2x M5x25 : Button head (y-end stop)</li></ul>10x M5x16 : Button head<ul><li>2x (z-top to 3030)<ul><li>8x (front&back panel to 3030)</li></ul></li><li> </li></ul>20x M3x10 : Socket head<ul><li>5x M3 x12 Button head</li><li>6x M3x20 Socket head</li><li>6x M3x22 Socket head</li><li>8x M3 x25 Socket head</li><li>4x M3x30 : Socket head</li><li>30x M3 Square Nut</li><li>4x M3 hex nut (base box to 3030 extrusion) Motors</li><li>(X-axis)1x BIQU SY-17HS4401S stepping motor</li><li>(Y-axis)1x BIQU SY-17HS4401S stepping motor</li><li>(Z-axis)1x BIQU SY-17HS4401S stepping motor</li><li>(E-axis)1x BIQU 17HS4023 stepping motor (or "pancake" motor) Pulleys and belts</li><li>2 meters of GT2 belt (used in build and reserved as spare parts) Linear Bearings</li><li>2 x LM10UUL 10mm Long Linear Ball Bearings (Z-axis)</li><li>5 x LM8UU 8mm Linear Ball Bearings (Y-axis(x3) + X-axis(x2)) Heated Bed components</li><li>1x <a href="https://www.aliexpress.com/i/1005001540004939.html">Heated Bed 180 x 180</a></li><li>1x 100kohm NTC thermistor Electronic System</li><li>1 x 24V 240W power supply</li><li>1x RepRapDiscount Full Graphic Smart Controller</li><li>1x <a href="https://www.aliexpress.com/item/4000781744682.html?spm=a2g0o.productlist.0.0.2fc6450dfUMtM2&algo_pvid=c300cb9f-48ac-434b-b03e-72ad27bef249&algo_expid=c300cb9f-48ac-434b-b03e-72ad27bef249-0&btsid=0bb47aa616147623566388463e5985&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_">Makersbase Robin E3D V1.1 control board</a></li><li>2x Makersbase TMC2208 V2.0 stepper drivers (E axis & Z axis)</li><li>2x Makersbase TMC2209 V2.0 stepper drivers (X axis & Y axis)</li><li>1x 5V NPN NC inductive proximity sensor (for bed leveling and Z homing)(using MT-det filament detection pins on the mks robin e3d v1.1)</li><li>1x (Y-axis)(Y MIN end-stop)<a href="https://www.aliexpress.com/item/33012250806.html?spm=a2g0o.productlist.0.0.2e331985OTsl5k&algo_pvid=9600fcde-2ed4-4a29-9aef-fab6ee773367&algo_expid=9600fcde-2ed4-4a29-9aef-fab6ee773367-1&btsid=0b86d80216080342956913142e2257&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_">Mechanical Limit Switches (End stop)</a></li><li>1x (X-axis)(X MAX end-stop)Endstop Limit Switches Plug Control with 24AWG Cable</li><li>1 x DC-DC LM2596S step down module</li><li>1x <a href="https://www.aliexpress.com/item/1005001593727099.html?spm=a2g0o.productlist.0.0.32a09248PO32ok&algo_pvid=d0a7642f-500d-43fe-bfee-8a0a6a8634cf&algo_expid=d0a7642f-500d-43fe-bfee-8a0a6a8634cf-5&btsid=0b01114516121102233485975ea7b1&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_">1 Channel Way Optocoupler Isolation Module / Optocoupler</a> Cable and connector (Optional)</li><li>1x <a href="https://www.aliexpress.com/item/4000961625000.html?spm=a2g0o.productlist.0.0.45517d567QrzMY&algo_pvid=a1aefe9f-3793-492f-aeb4-dd95cb1b202a&algo_expid=a1aefe9f-3793-492f-aeb4-dd95cb1b202a-44&btsid=0b86d80216080344304564908e2257&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_">Dupont Connector 2.54mm, Dupont Cable Jumper Wire Pin Header Housing Kit</a></li><li>1x <a href="https://www.aliexpress.com/item/4000993642313.html?spm=a2g0o.productlist.0.0.20f454b59KXkZo&algo_pvid=f46f1c96-941c-4cc2-8e48-e0a48eb9589f&algo_expid=f46f1c96-941c-4cc2-8e48-e0a48eb9589f-17&btsid=0b86d80216080345043775937e2257&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_">SN Crimp Pliers</a></li></ul><h3>Print Settings</h3>Printer Brand:PrusaPrinter:I3 MK3SRafts:NoSupports:YesResolution:0.20Infill:40%Filament: Prusament PETG Prusament Orange Notes:<ul><li>3 Perimeters</li><li>4 top/bottom layers</li><li>0.2mm layer height</li><li>40% infill</li><li>May require custom support(brushed support enforcer in prusaslicer works best)</li></ul>Category: 3D Printers

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