the making of a diy cnc mill

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Presentation Description

Slide show detailing the making of my MDF CNC mill. I hope this is a guide for everyone who wants to make one themselves. No measures given. You should figure them yourself appropriate for your needs. Make sure to add generous space for the bellows, around the working table and the width of the x-carriage to the range of motion!

Comments

 

By: azimasri91 (8 month(s) ago)

can i have the permission to download it ?

 
By: jgeisler0303 (8 month(s) ago)

First I'd like to know wha you need the download

 

Presentation Transcript

The Goal: 

The Goal

Slide 2: 

A DIY milling machine Inexpensive Easy to build Good precision

The Tools: 

The Tools

The Expenses: 

The Expenses

Slide 6: 

400€ 160h Existing tools Odds and ends Years of DIY experince

The Method: 

The Method

Slide 8: 

Use inexpensive but precisely pre-cut MDF plates to achieve parallel edges and right angles

Slide 9: 

The double layer base plate Loose spacer Pre-drill thru and thread for Spax!

Slide 10: 

Putting the side walls on Loose spacer

Slide 11: 

Mounting the back wall Loose spacer Right angle (loose)

Slide 12: 

Fixing the back wall and the gantry pillars Gantry pillar

Slide 13: 

Putting the gantry in Gantry Spacer (fixed) Right angle and reinforcement

Slide 14: 

The X-carriage

Slide 15: 

Mounting the X-carriage to the gantry 1 Gantry taken out again and upside down Gantry bottom Slide flush to gantry

Slide 16: 

Mounting the X-carriage to the gantry 2 Gantry Use non-bevelled head!!! Not attached yet Gantry top parallel to gantry bottom Slide flush to gantry top

Slide 17: 

The Z-carriage Epoxy glued, very messy!

Slide 18: 

Mounting the Z-carriage to the X-carriage Epoxy glued to avoid bracing, flat non-bevel headed screws would have been better! Hole for screw driver to fasten slide to X-carriage

Slide 19: 

The gantry had to come closer to the front Spacer parallel to back wall New, second pillar

Slide 20: 

Preparing the frame for the Y-table Balsa wood spacer (glued)

Slide 21: 

The Y-table from underneath (and a leadscrew and nut)

Slide 22: 

Putting a working table on the Y-carriage

Slide 23: 

The stepper mountings drill file mount

Slide 24: 

Preparing the leadscrew bearings Epoxy glued since no radial forces occur Make sure to get the other side parallel!

Slide 25: 

Preparing the leadscrew nuts Fasten nuts to be glued in, protect the thread! Gluing in the mounting nuts is not so easy  Leadscrew nut

Slide 26: 

Putting the leadscrew in the bearing Teflon band Self-retaining nuts

Slide 27: 

Chip and dust protection Leadscrew and slides will die otherwise!

Slide 28: 

Iron and aluminium foil to bend the Plexiglas

Slide 29: 

The protection goes between the X-carriage and the slides

Slide 30: 

Z-carriage with leadscrew

Slide 31: 

All leadscrews assembled

Slide 32: 

The stepper adapter Fixed from top with sunken head screw Flex plastic tube and ziptie

Slide 33: 

Paper bellows to protect the slides and leadscrews Bellows guide U-profile to seal the sides

Slide 34: 

Mounting the router Pipe clamp and wooden jaws Zipties keep the world together Vacuum hose

Slide 35: 

The arduino running grbl and the three pololu stepper drivers

Slide 36: 

ATX power supply, 12V is not much but sufficient for now

Slide 37: 

Limit switches X-limit Z-limit

Slide 38: 

Jog wheel encoder and abort button

Slide 39: 

Recycled timer switch as a TLL SSR housing Don’t forget the varistor, motors are inductive loads

Slide 40: 

Thank you and good luck