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You Bought A CNC, Now What?

6/5/2020

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You did it!  You just purchased A CNC.  If this is your second (or 3rd or 4th :P ) CNC than you know what your getting into!  If this is your very first step into the CNC world then you're probably feeling excited and a bit nervous!  I remember when I got my first CNC.  That feeling of excitement when UPS pulls up to the house and drops it off.  Taking that first picture of the unboxing for Instagram.  Painstakingly going through the instructions making sure I assemble it just right.  Then, taking a step back, looking at what I just built, and thinking "Ok, how do I make this thing work?"
In this post, i'll be referring to the Onefinity CNC, as this is the current CNC I have, but this will be helpful for most every CNC on the market.

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1: Router

First things first, you need a router.  The Onefinity doesn't ship with one, so it's the very first item you'll need to buy.  The only current spindle mount is a 65mm, so you're limited to just a few routers/spindles.  The very best option for this is the Makita trim router, model RT0701C.  The Makita has a great range of RPMs, which gives you more control while cutting.  Other options included the Harbor Freight Bauer trim router, MLCS Rocky 30 router, or you can get very adventurous and purchase a spindle.

Or Spindle

PictureClick HERE to buy the spindle
Ah, a proper spindle.  If you've been doing your research on CNC machines you've inevitable seen many posts about getting a spindle.  Since I'm one of the few with a machine, I'm obviously getting tons of questions about it.  And the 'can this run a spindle?' was one of the top requests.   So, without ever using one, let alone ever seeing one in person with my eyes, I made a leap of faith and purchased one from amazon.  I've created a video all about that HERE (Link to come once I actually edit the video).  I'll sum up the video by saying this:  It is super quiet and it is not worth the hassle for 95% of you buying the machine.  If you are brand new to CNCs, stop right here and skip to the next section.  A spindle is not for you.   If you are more 'seasoned', a spindle may be for you.  I've realized why very few hobby cnc machines officially support it.  You have to wire EVERYTHING yourself.  And by that I mean, it literally comes with no wires.  Wiring 2 and 3 phase stuff that could potentially KILL you is probably not something they want to promote...and only a finite amount of people will actually use one, so it's not worth the liability, support, and $$ to promote one.  That being said, it will be really hard to go back to the ear deafening sound of a router now that I've run a spindle.


2: BITS

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A router or spindle are great at spinning around but they wont cut anything without a bit inside them.  There are countless options in this, each with their own specific purpose.  I've already written up a pretty lengthy blog post previously on my preferred bits and that applies to the Onefinity.  You can check that out by clicking the button below.

CNC Bits Blog Post
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Collets.  A Collet is an adapter to hold different sized bits.  Every bit has a cutting diameter and a shaft diameter.  The Makita router (and most routers) comes with a 1/4 collet.  This means that you'll only be able to use 1/4 shanks (the smooth shaft part that goes into the router).  Some smaller bits (like a 1/16 or 1/32) only have 1/8 shanks and will not work in the standard collet.  You'll need to purchase a 1/8 collet.  A great place to buy very good collets is Elaire Corp.  I linked a button to their Makita selection below.

Elaire Collets

3: Wasteboard

Since the default configuration of the Onefinity CNC is open on the bottom, once you attach it to the table you'll want to provide a sacrificial wasteboard as a carving surface and a place to hold down your material.  I'm kinda biased here...but I've designed one that most people refer to as the "Myers Wasteboard" (or mEyers if you can't spell my name right).  I think its the best one you can get, but i'll leave that up to you.   All you'll need is a piece of MDF and your machine will do the rest of the work.   The file is specifically designed for the Shapeoko 3 but since it has very similar cutting sizes, it will work perfectly for the Onefinity CNC as well.  (Version 2 with Microjig is coming soon)  There's plenty of info about this out there so I'll link the relevant stuff below:
Etsy Files
Wasteboard Blog Post

4: Clamps

A wasteboard is only good if you can get your material to attach to it.  There are a few ways to do this.  I usually use 3 different methods.
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​1: A brad nail strait through the material into the wasteboard.  This is minimally destructive to the piece and the board, but when you're just cutting out shapes its fast and very effective.  I use a Ryobi battery powered nailer like this:
2: CA glue and blue tape.  CA glue is super strong that can dry in a few seconds.  First, place blue painters tape on the back of your material your going to cut. Then place tape onto your wasteboard, sticky side down.  Next, squirt a few drops along the tape.  Then push you material, tape side down, onto the blue tape and glue on the wasteboard.  You're essentially creating a 'glue sandwich' with the tape and glue.  Once finished, just pull up the piece and remove the tape.  Perfect for when you want to engrave an already finished piece and brad nails will damage it.
3: Cam, fence, and L clamps.  To go along with my wasteboard I designed a bunch of different clamps.  I've created a blog post and YouTube video to explain them.  They work really well and leave no marks on your material.  Also, since they are low profile and made from mdf, you don't have to worry a about running into them with a bit and breaking the bit or the clamp.  The video and files were designed for the Shapeoko 3, but will perfectly apply to the Onefinity (and any other CNC) just as well.
Clamps Blog Post
Etsy Clamp Files

5: CAD (Design Software).

CAD (computer aided design) software is an essential part of every CNC.  The machine is no good if you do not have a file that it can run.  Most hobby cnc's run gcode, a language for cnc machines.  I'll list some free software and some great paid options below.
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Easel
Carbide Create
Fusion 360
Vectric
Carveco
Solidworks
Carveco was gracious enough to provide a discount code for my followers.  Use code "myerswoodshop" for 5% off!
I have made a bunch of videos showing how to use Carbide Create (free).  I'll be doing more on other software in the future.  Check out my Carbide Create series below.

6: A Computer

You'll need a computer for one of two reasons (or both in some cases) for CNC machines.  The first is programing the CAD (design) software.  The second is actually sending the gcode created from that CAD program to the CNC machine (by using CAM software (motion control)).  For most hobby cnc machines you'll need to be teathered to the cnc via a usb cable during the whole cut.  For the Onefinity CNC machine, you do not thanks to its controller with built in cam software.  For designing CAD, you'll want something a bit more powerful (especially if your designing 3d files and not just 2d).  For running CAM, usually a inexpensive computer will do just fine as its just streaming a small set of data over usb.  I'll link my two favorite computers I personally use.  Click the pictures to purchase.
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Microsoft Surface Go 2
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ASUS ROG Gaming PC

7: USB Stick

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Sandisk 16gb USB Stick
One feature that Onefinity has is the ability to run gcode from a usb stick plugged into its controller.  This is especially nice because you can save many files onto on usb stick and run them over and over.  It's a great way to store files.  Any usb stick should work, but I use the Sandisk Ultra 3.0 16gb.  It will take me a very long time to fill that up with gcode files.  Click the picture on the left to purchase.

8: Joystick (Another Form Of Jogging)

There are many ways to jog (move) a cnc machine.  Most included using the mouse and clicking on a computer screen.  Some machines have the ability to connect a game pad to enable jogging.  This is a nice feature as you can stand directly in front of the machine and watch it move rather then watching a screen.  The Onefinity allows the use of game pads.  I linked two below that I've personally used and tested (clcick the pictures to purchase).  The blue one is a wired one, the silver one is wireless (I personally recommend going wireless!).
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Wired Logitech F310
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Wireless Logitech F710

9: Webcam

Once you get cutting it's not really ideal to stand in-front of the machine for hours (although its NEVER recommend to not monitor the cutting process, you never know what could happen!)  Fortunately we live in an always connected digital age.  There are two ways you can remotely monitor the cut.  One way that is specific only to the Onefinity is plugging in a usb webcam to the controller.  If you do this, a box will pop up on the screen (that you can access from any device on the network) with a live video feed from that webcam.  It's a really cool feature.  I used two webcams (one a 720p and one a 1080p) and they've both worked perfectly.  I'll link them below, click on the pictures to purchase.
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720p
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1080p
Another option is to get a network enable webcam like a wyze cam.  I have one of these in my shop to remotely view what's going on.  I've mounted one of these about my Shapeoko 3 to remotely view the cut also.  Check them out on amazon.  They are cheep and very effective.

10: Vaccum

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The unfortunate side of cutting on a CNC machine is dust. Lots and lots of dust.  Some material is worse than others.  MDF is particularly bad for your lungs, and cutting it creates A LOT of dust.  The Onefinity CNC supports (and all preorders get) the Suck It Dust Boot.  This allows dust collection right at the point of cutting.  Now you'll need a vacuum to suck up the dust.  Unfortunately most vacuums are very loud.  Add that to the fact that the routers are really loud and it's especially uncomfortable for your ears.  I've had a shop vac in the past.  They work well but are over 80 decibels.  While researching other vacuum alternatives, I found Fein.  They are German made, have the quality of Festool vacuums and are much cheaper.  The best part is that its less than 50 decibels while running.  It's one of the quietest vacs on the market and is still going strong 3 years later!

Fein Turbo 1 Vaccum

11: PPE (Safety Equipment)

Safety first!  If you've made it this far, you'll already know ear protection is really important.  There are 3 different ones I use in my shop.  Apple Airpods Pro, ISO Tunes Free, and 3M Worktunes.  They're each a bit different and its just personal preference which you'd like.  ISO Tunes Free are usually the go to in my shop.
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Apple Airpods Pro
ISO Tunes Free
3M Worktunes
Another item that you should have in the shop is a fire extinguisher.  Bits create friction and its higly possible to have a mishap that could create smoke or fire.  ALWAYS have a fire extinguisher on hand!

12: Touch probe

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The basic principle of this type of probe is that the continuity of an electric circuit is broken when the probe touches a feature in the XY plane at a given Z position or touches a surface in the Z direction at a given X & Y.  This lets the machine know where the starting point to cut on the material is.  While a touch probe is not a necessity, it makes finding zeros more automated.  Most any touch probe will work with the Onefinity, however they sell their own branded probe that is plug and play.

Touch Probe
Touch Probe Holder

13: Material

Finally, you'll need something to cut.  The materials you can cut on a CNC would be wood, acrylic, plastic, chipboard, aluminum, brass, linoleum, brick, hdpe, pvc, and many more.  

Summary.

Hopefully this post was helpful in what to expect when you purchase a new CNC.  If you have any questions, feel free to write them in the comments.  If you can think of anything to add, send me a message and I'll edit this post.
Happy cutting!
​Ben
11 Comments

Setting Up A Chinese Laser Rotary

6/1/2020

0 Comments

 
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This is a super in depth tutorial on how to set up a rotary on a co2 chinese laser. Then I walk you through how to set up Lightburn software step by step. ​
More to be coming soon on this post!

In the meantime, check out Lightburn.  It is the best software for Lasers and has a 30 day free trial.

Want to buy the laser I use?  Go HERE: https://omtechlaser.com/?sca_ref=2167960.0NUx7jOeeComtechlaser.com/?sca_ref=2167960.0NUx7jOeeC
and use code "MYERSWOODSHOP" for 5% off your purchase at OMTechlaser.com
Lightburn Software
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