We recommend our electronics combo for the scratch build kit, which you can find on our site here: https://buildyourcnc.com/item/electronicsAndMotors-3axis-425-elcombo. This is our standard general purpose 3 axis electronics system, and includes (3) NEMA 24 425 oz-in stepping motors, (3) Drivers (3.0Amp 24-40 Volts, with 1-1/64 microstepping), (1) 36v 8.8a Power Supply, (1) Interface Board either USB or Parallel. (The USB version requires PlanetCNC software; the parallel interface board gives you a variety of options, Mach3 being one popular choice.)

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I am going to build a CNC 4x4 plasma table. The frame is made of 1 1/4" pipe and the gantry will be made of either 2"x 2" or 2"x 3" tubing. What size stepper motors do you suggest?

We still use Mach3 with a parallel port. We are looking into newer boards with USB/ethernet communication.

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Are you using Mach 3 or 4? Do you ever use the etherenet outlet to control drivers?

You can use either 1" x 1" x 1/8", or 1-1/4" x 1-1/4" x 1/8" angle on the table sides. The BRAs should all be 3/4" x 3/4" x 1/8". The Y ans Z axes should use the 3/4" x 3/4" x 1/8" angles.

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In the Build your own CNC machine book, You said you use 1 1/4" angle on the main table but 1" would be better. So my question is Should I use 1" angle on the main table (4' length) and 1 1/4" angle for the BRA's and other rails?

The eyebolts are used in the squaring of the machine. I would use a standard carpenters square and first run the end mill along the edge of the square to first make it parallel with the long axis. Then run the end mill along the other edge with the short axis and adjust the eye bolts and chain according to the angle that the machine is out of square.

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DO NEED TO SQUARE UP THE MACHINE AND IF SO YOU HAVE INSTRUCTIONS OR VIDEO FOR THIS?

Our HIWIN spec bearing blocks will fit true HIWIN rails, but I can't vouch for any other rails that are provided by other suppliers.

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Do you know if the HiWin 20mm blocks will fit other chinese precision rails? Also do you sell the 15mm blocks?

We are working on getting these on the blackTooth page


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Ok, thanks. Do you use a separate 24V P/S for the supply voltage on the AWC708C or tap into the stepper motor P/S?

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Do you have instructions how to mount the AWC708 DSP on the blackTooth?

no, it will only work on anodized aluminum

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WILL THE LASER ENGRAVER WORK ON NON-ANODIZED ALUMINUM

If you remove the dust shoe, you should be able to reach the collet to remove the end mill.

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DO HAVE TO REMOVE THE PORTER CABLE 892 ROUTER EVERY TIME CHANGE BIT?

Our machines can mill aluminum, we have only tested with thin aluminum sheets. But milling aluminum is no problem with our machines, here is a video we recently did with our gB 4'x8' the aluminum piece is about 1/4" thick: https://buildyourcnc.com/tutorials/tutorial-greenbull-aluminum-cutting

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Hello I just want to ask, is this machines can milling Aluminum?

Our SBR20 rails use M8 bolts and are suitable for use with 8020 aluminum or any other common machine material. We suggest the use of our ball bearing pillow blocks with these rails, which you can find on our website here: https://buildyourcnc.com/item/mechanical-rails-linear-ball-bearing-block

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HOW TO FIND WIDH 38 HEIGHT 26 LINER GUIDE RAIL

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What are the bolt dimensions for the SBR20 linear rails, can they work with 8020 Aluminum extrusions?

You can determine if the area is serviceable by:
- selecting the items you want to purchase on the website
- go to the cart (shopping cart top left of any webpage)
- log in, or register
- Enter the address and click on calculate shipping.

The webpage will return the direct rates and whether your area is serviced or not. Feel free to enter any address as long as you are able to receive the package from that address.

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WAS WONDERING IF YOU COULD TELL ME WHETHER OR NOT SHIP ANY OF YOUR KIT PRODUCTS TO THE UK?

For information on our current projects and/or future machine setups please refer to our R&D section (https://www.buildyourcnc.com/ResDev.aspx) for more info!

Also you can create a custom request! if your request is not been thought of or created.

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Are you planing on building a CNC lathe ? or intergrating one as a module on an existing CNC router table ?

The wire that we sell for the limit switch wiring is here: https://www.buildyourcnc.com/item/3d-printer-component-cnc-electronicsandmotors-cable-wire-3-conductor-22-awg-wrcon-cablewire3conductor22awg

This is shielded cable to make sure there isn't any external interference with sensitive components and long wires associated with limit switches. This is necessary due to the interference caused by the motors on a CNC router and the milling process.

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So unshielded is cool. That's what I was curious about. Cheers.

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Absolutely. It's really the only type of cable I would recommend for connecting limit switches.

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Do you sell 22 to 24 AWG stranded and shielded for wiring of the limit switches and E_Stop?

As long as the bearing has a minimum thickness of 1/4" and 9/32" is a bit thicker, there will be no problem with the book build using the bearing that is 1/32" thicker. There is actually more surface area which is better.

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in your book - Build you own CNC Machine. Can I use 9/32" thick bearing instead of 1/4" thick?

Yes, that is highly recommended for all the reasons you can imagine. Say you were doing engraving, not surfacing the spoilboard will either exhibit some areas that have no engraving at all, or areas that have engraving that is too deep. If you are cutting completely through the material, then one end may be cut all the way through but the other end will not have a complete cut, or produce onion skinning on the bottom of the workpiece.

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DO NEED TO GET THE BIG PLANING BIT OR SURFACING AND GO OVER SPOIL BOARD MAKE SURE THAT IT IS PERFECTLY LEVEL IN RELATION ROUTER?

The cutting tool is an end mill (it looks like a drill bit). It is a cutting tool that can plunge and cut sideways. That item is not included and is a consumable. You will purchase these very frequently and will have geometry that is very specific to how you apply the cnc machine.

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IS DRILL BIT USED IN THE CNC MACHINE?

Currently we do not have that modification kit, our set up is fixed for our greenBull only modification kit we have for this model is the long z-axis kit(Designed for Foam cutting).

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I am building your "Green Bull' 6 foot wide kit and I am at the stage of attaching the motor and drive chain. I would like to know if you have an modification kit available to put the 1/2" ACME screw on the Y-axis?

If you select the Settings Page and select or tick Auto Limit Override - this will allow you to back off the switch.

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limit and home switch

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IS THERE A WAY TO GET RID OF THE PARALLEL CABLE AND SOMEHOW USE USB ?

Are you trying to determine how to wire the switches or where to place them on the Vertical Laser XL? Let me know and I will provide some pictures or video on how to do this.

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Kind of both. Have somewhat of an idea as to how to wire them but you included rotary and other limit switches. Not sure which ones to put where. Never worked with these before.

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Do you have a more detailed diagram of the rotary and 15A limit switches on the vlxl?