Saltar al contenido principal
Ayuda

Skelestruder for Prusa MK3 Printing Parts

Guía Contribuida Por Miembros

Guía Contribuida Por Miembros

Un miembro increíble de nuestra comunidad escribió esta guía. No está supervisada por el personal de iFixit.

How to print the parts

  • Autor: JLTX
  • Dificultad: Fácil

First decide the gear ratio you desire. 16/56 = 3.5 is most common:

Gear RatioPinionTreadWheelBeltE steps
41456std1401120
3.51656std140980
31854std140840
2.82056std140784
3.42857144848130960
3164848130840
2.4204848136672
2163232112560

Note: 48 and 32 wheel available on request. You will need to order a shorter belt as indicated.

Paso 1 Printing Preparation  ¶ 

No hay imagen

Paso 1 Printing Preparation  ¶ 

  • There are many options for filament between type and color. You can mix and match to suit your style and needs.

  • Generally I recommend PETG as it has good all around properties. This is the same as the stock extruder. I used an all PLA version for about 9 months with little trouble however. Annealing is another option, but is challenging due to the shrink factor.

  • Certain parts have unique needs that will favor one type over the other. See part listings.

  • Some parts make look slightly different over time as new versions come out, but functionality and printing are correct as listed.

  • I use and test all parts in Slic3r PE. Print parts as oriented, do not rotate around X or Y. Using default settings unless otherwise indicated below.

  • recommend 0.15 layer, gyroid

Paso 2 Carriage [SP_carriage]  ¶ 

PETG or PLA PETG or PLA

Paso 2 Carriage [SP_carriage]  ¶ 

  • PETG or PLA

Paso 3 X-Clamp [SP_Xclamp]  ¶ 

PETG or PLA

Paso 3 X-Clamp [SP_Xclamp]  ¶ 

  • PETG or PLA

Paso 4 Umbilical Connector [SP_tail or SP_Fin]  ¶ 

PETG.  If you choose Fin, it requires PETG for flex. Tail - similar to Prusa style connection

Paso 4 Umbilical Connector [SP_tail or SP_Fin]  ¶ 

  • PETG. If you choose Fin, it requires PETG for flex.

  • Tail - similar to Prusa style connection

  • Fin - more flexible, less resistant connection

  • Note that the wire rack at the end of Fin is designed to have split openings at the top even though the stl appears closed. This will resolve when you slice.

Paso 5 Extruder Cage Back [SP_EcageB]  ¶ 

PETG

Paso 5 Extruder Cage Back [SP_EcageB]  ¶ 

  • PETG

Paso 6 Extruder Cage Front [SP_EcageF17]  ¶ 

PETG

Paso 6 Extruder Cage Front [SP_EcageF17]  ¶ 

  • PETG

  • Note that this has one built-in ring support. We will remove it in a later

Paso 7 Extruder Cage Shield [SP_EcageS]  ¶ 

This part is separate and small so that you can print in a high temp resistant filament. Has two small breakaway supports that should be removed.

Paso 7 Extruder Cage Shield [SP_EcageS]  ¶ 

  • This part is separate and small so that you can print in a high temp resistant filament.

  • Has two small breakaway supports that should be removed.

  • R1 version successfully printed in PETG, HTPLA, ABS, and PC.

Paso 8 Fan Shroud [SP_shroud]  ¶ 

PETG or PLA

Paso 8 Fan Shroud [SP_shroud]  ¶ 

  • PETG or PLA

Paso 9 Key [SP_key]  ¶ 

PETG

Paso 9 Key [SP_key]  ¶ 

  • PETG

Paso 10 Inlet choice [SP_inlet...]  ¶ 

PLA, though PETG can work Std version: this is similar to the stock Prusa extruder, where the PTFE is cut flat and terminates before the gears

Paso 10 Inlet choice [SP_inlet...]  ¶ 

  • PLA, though PETG can work

  • Std version: this is similar to the stock Prusa extruder, where the PTFE is cut flat and terminates before the gears

  • PTFE version: this has the PTFE pass through and needs to be cut tapered to fit between the gears. This is best suited for flexible filaments.

  • Optionally print at 0.1 layer with 0.25 nozzle for extra high precision for tightest fit with Bondtech drive gears. No escape for flexible filament!

Paso 11 Spider [SP_Spider17]  ¶ 

PETG

Paso 11 Spider [SP_Spider17]  ¶ 

  • PETG

Paso 12 Wheel [SP_wheel]  ¶ 

PETG

Paso 12 Wheel [SP_wheel]  ¶ 

  • PETG

Paso 13 Tread [SP_tread...]  ¶ 

PLA works well here.  PETG also.

Paso 13 Tread [SP_tread...]  ¶ 

  • PLA works well here. PETG also.

  • It is best to print this part by itself and not plate it with other parts. This helps ensure you get clean teeth.

  • Print either the 56 or 54 tooth version depending on the gear ratio you want.

Paso 14 Pinion [SP_pinion...]  ¶ 

PETG, HTPLA, PC

Paso 14 Pinion [SP_pinion...]  ¶ 

  • PETG, HTPLA, PC

  • Print one size depending on the gear ratio you want

  • Use 3 perimeters. Turn off 'detect thin walls'

  • 14T

  • 16T

  • 18T

  • 20T

Paso 15 PINDA Rack [SP_Prack]  ¶ 

PETG, maybe HTPLA

Paso 15 PINDA Rack [SP_Prack]  ¶ 

  • PETG, maybe HTPLA

  • Needs some flex, so PC is poor choice

Paso 16 Idler [SP_idler]  ¶ 

PETG

Paso 16 Idler [SP_idler]  ¶ 

  • PETG

  • Note that this piece has two built-in supports. Do not remove the cylinder yet.

Paso 17 Knobs [SP_tensioner and SP_knob]  ¶ 

I recommend printing  control knobs in a contrasting color. Any filament should work fine

Paso 17 Knobs [SP_tensioner and SP_knob]  ¶ 

  • I recommend printing control knobs in a contrasting color.

  • Any filament should work fine

  • Tensioner knob

  • PINDA knob

Paso 18 Spacer [SP_spacer]  ¶ 

PETG or PLA

Paso 18 Spacer [SP_spacer]  ¶ 

  • PETG or PLA

  • Print a few spares, that one is easy to loose. Maybe use a brighter color

Paso 19 Direct / Indirect Cartridge [SP_Dcartridge]  ¶ 

PLA, though PETG can work Dark color is best.

Paso 19 Direct / Indirect Cartridge [SP_Dcartridge]  ¶ 

  • PLA, though PETG can work

  • Dark color is best.

  • Direct sensor cartridge for stock setup

  • Indirect sensor cartridge (additional parts necessary)

Paso 20 Direct Covers [SP_Fcover or SP_Pcover]  ¶ 

PETG or PLA Standard for direct load Bowden for either reverse Bowden or MMU connection.  Requires M5 heat-set nut.

Paso 20 Direct Covers [SP_Fcover or SP_Pcover]  ¶ 

  • PETG or PLA

  • Standard for direct load

  • Bowden for either reverse Bowden or MMU connection. Requires M5 heat-set nut.

  • also M6 version for direct attach of PC4-M6 coupler

Paso 21 Indirect Cover [SP_Ilid or SP_PIlid]  ¶ 

PETG or PLA For use with indirect filament sensor For indirect filament sensor and Bowden connection.  Requires M5 heat-set nut

Paso 21 Indirect Cover [SP_Ilid or SP_PIlid]  ¶ 

  • PETG or PLA

  • For use with indirect filament sensor

  • For indirect filament sensor and Bowden connection. Requires M5 heat-set nut

  • also M6 version for direct attach of PC4-M6 coupler

Paso 22 Indirect Filament Sensor Shaft [SP_spring]  ¶ 

PETG or PLA

Paso 22 Indirect Filament Sensor Shaft [SP_spring]  ¶ 

  • PETG or PLA

  • Serves as both bearing axle and spring, so some give is good.

Paso 23 Omega [SP_Omega or SP_OmegaV]  ¶ 

PETG, 0.15 layer Add supports, build-plate-only, 40 deg threshold

Paso 23 Omega [SP_Omega or SP_OmegaV]  ¶ 

  • PETG, 0.15 layer

  • Add supports, build-plate-only, 40 deg threshold

  • Use 4mm brim

  • OmegaV is for use with e3d Volcano heater block, but printed similarly.

  • You are ready to move to the next stage, Preparing Components