Pin on CNC Router

A few years back I attempted diy wood cnc machine jacket build a CNC machine. It was not entirely successful due to horrible backlash on the toothed belt driving mechanism and my low budget Z axis drive and fiy. My second attempt, described here, came out much better. The whole design was dictated by a ball screw set I found on Amazon. Ball screw shaft lengths of, and mm drove all the other design dimensions.

I had 1x1, 2x1, and 3x1 inch pieces to work with. Note that the bolts do have to be the right length so they can reach the nut but not bottom out against the aluminum. The following Instructable is intended to illustrate the various physical components and how they came together. The details of wiring are not in the intended scope here. Also, use of a CAM program such as Vectric Aspire to work with 3d models and generate G code is not included in the scope of this Instructable.

I used 1 by 2 inch steel tubing bolted on top of 3x1 inch aluminum for the underlying frame. The sliding allowed adjustment cbc width. I had to drill larger holes in the steel tube tops for screwdriver access. The steel tubes are mm long, though the exact length does not have to be precise. This required tapping the steel — not fun. Pillow blocks are the pieces that hold the ball screw shafts in place.

This allowed adjustment in the Y axis direction. Adjustment in the X direction was done using oversized holes ouch. I 3d printed a piece to surround the ball nut the part that follows the screw shaft. This was needed so later I could attach the ball nut to the gantry. The sides are held together by three pieces of There is a 3x1 piece of at the bottom the design pic shows a 2x1.

This is where the gantry is attached to the X axis ball nut follower. There are two pieces of 2x1 higher on the aluminum plate to hold linear guide rails. Pillow blocks are mounted halfway between the guides to hold the jaket ball shaft. There is no adjustment here, so the has to be cut precisely and the holes in the plate have to be positioned precisely. The guides actually form the structure of diy wood cnc machine jacket fixed part of the Z axis.

The angle pieces hold the Z axis pillow blocks which hold the mm ball screw shaft. After an initial failure involving pulling out of screws into tapped aluminum, the assembly is now held together by bolts and nuts. Again, a 3d printed part surrounds the Z axis ball nut so it can be attached to the front plate. I used my Bosch Colt trim router for the spindle. It seems like good enough quality, within minimal diy wood cnc machine jacket. After a couple of years or eiy I needed to replace the brushes.

Naturally I looked for a Youtube video to give me a leg-up. My guess is that if you only use it as a trim router non Woid you never have to replace the brushes. The spindle holder is an aluminum piece I ordered on Ebay. For stepper motors I bought a kit of jackeg Nema 23 oz-in steppers, their drivers, and diy wood cnc machine jacket power supply.

For the X axis I mounted the motor on a piece of angle aluminum screwed onto the frame 1x3 For the Y axis, I used a Nema 23 steel bracket, but the attachment was less than elegant. The Nema 23 bracket worked out fine for the Z axis. The ball screw kit came with 3 motor connectors but they were weak and two of them broke soon after deployment. I replaced all three with what I call Lovejoy connectors. The board is screwed into tapped holes in the tops of the 1x2 steel tubes.

I have a pair of plywood angles which can hold diy wood cnc machine jacket stock, sometimes assisted by double stick tape. For heavier stock I use wooden clamps which I screw down into the spoil board.

Diy wood cnc machine jacket very uneven work such as a log slice, I use small hinges diy wood cnc machine jacket into either end of the log and then into the MDF. One diy wood cnc machine jacket a dust collection system. I designed a two part dust shoe. The qood part has a pinchable hole to grab onto the spindle router body, and another hole to hold the vacuum nozzle.

I made the first upper on the 3d printer, then used the CNC machine to cut its replacement out of acrylic. The upper part has strong magnets pressed and screwed into the surface. The lower part consists of a 3d printed jaxket. On top are steel screws aligned to engage with magnets on the top. Around the bottom I used flexible plastic for a skirt. Connected to a dedicated shop vac, it cncc almost all the dust which drops to the bottom of the bucket.

My only complaint is that there is no easy way to know when the bucket is getting full until there is no suction and dust goes into the vac. The power supply and the stepper drivers came in the kit with the motors. They all seem fine and work well with the motors. This is just a cheap old slow Windows PC I dedicated to the job. Not much resource is needed to run the Planet CNC diy wood cnc machine jacket and this machine is fine for the purpose.

It does have three USB ports and I use all of them. Controller boards are the component that takes in G-code and translates it to the pulses needed by the driver boards to move the stepper diy wood cnc machine jacket. It sorta worked, but the user interface was less than elegant and I got frustrated on various accounts.

I chose it because at the time it was the only option I could find with a USB interface. I got the old controller board out of storage, replaced the Arduino, and never looked back. The Planet CNC people are in still in business in Slovenia and have always been responsive to questions and concerns. After a month or so the machine seemed quite reliable.

I grew tired of staying near it while it worked so I could shut off the vacuum and spindle when it was done. The G-code versions I use automatically include an M3 to start and an M5 to stop the jackst.

The controller provides a pin for this so I connected this to a relay to automatically turn on the vacuum and spindle and turn them off at the end. One should have limit switches to prevent the machine from trying to move past its physical limits.

I opted for normally closed versus normally open. There is less wire this way since diy wood cnc machine jacket two switches on X and on Y are in series. And it seems safer in that you will know if a wire comes unplugged or breaks. One is supposed to have one of these also. So if something horrible begins to happen, you can smack the red button and the world will be saved.

Diiy had one of these too, but the switch went bad so I bypassed it. The disaster will be over by the time you get there. From diy wood cnc machine jacket rooms in the house I can hear the machine running.

Xnc I can also hear when it stops, so I can go down and change a bit, or dismount from the spoil board. All of the above fits into a neat cabinet salvaged by my good friend and tech buddy Charles. Wiring connections are at the back of the cabinet and are all unpluggable. The cabinet drawer holds my growing collection of bits.

I use this little box to move the machine on the X, Y, or Z axes manually. It's more convenient than having to poke at the on-screen controls using the PC trackpad. This one connects to the PC via bluetooth and simulates keyboard commands. Question 6 weeks ago. Answer 5 weeks ago. The stepper motors and drivers were bought in a set via Amazon. The PlanetCNC controller was bought directly via their website. Reply 7 months ago. By dcolemans Follow.

More by the author:. Basic Frame I used 1 by 2 inch steel tubing bolted on top of 3x1 inch aluminum for the underlying frame. Ball Screw Pillow blocks machien the pieces that hold the ball screw shafts in place. Ball Screw Shaft Pillow blocks are mounted halfway between the guides to diy wood cnc machine jacket the mm ball shaft. Ball Nut A 3d woo part fits over diy wood cnc machine jacket ball nut so it can be attached to diy wood cnc machine jacket Z axis back plate.

Attachment to Y axis The guides actually form the structure of the fixed part fiy the Z axis. Spindle and Holder I used my Bosch Colt trim router for the spindle.

DIY CNC Carving Machine: A few years back I attempted to build a CNC machine. It was not entirely successful due to horrible backlash on the toothed belt driving mechanism and my low budget Z axis drive and spindle. As a result of my attempt though, I had a variety of fa. Apr 20,  · In This Video Build your own CNC machine and let the computer do the work. Homemade Cheap and Easy Discover How To Build A CNC Woodworking Machine (Step-By- Author: Internette Para Kazan.

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