Dealing with Dust

The CNC PRO is designed to be on site and work in places like a construction environment. There are many elements that can cause issues; we have found that our biggest problem is concrete dust. It is super fine and can get into some of the working components of the CNC PRO. If dust is not properly maintained it will cause improper wear.

There are two main components that are affected by fine dust, the Router and Pillow Blocks.



Consider this, by the nature of the router it sucks air from the bottom where the bit is cutting and is funneled. The air being funneled is meant to cool it down. Unfortunately, the dust being sucked in will prematurely wear out the bearing on the shaft of the router.

Tip: We recommend keeping an extra router or two with the machine. This way if any issues arise from the current router, you can quickly change it out in 60 sec.


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What are the pillow blocks? They are the blocks that allow the machine to be put together and taken apart while staying square with precision. These blocks have many small steel balls in them (helps them move) and we and found that concrete dust will get inside these blocks and bind up, so they have improper wear.

Tip:  It is imperative that we clean these blocks every 10 hours and keep them clean and lubricated.


Here are two solutions to help combat dust: Dry lube and vacuum plates.


Dry LubeDSC_0069

Dry Lube is imperative to helping combat the problems of fine dust.  You need to use the Dry Lube over using regular WD-40. Here’s why; the dry lube doesn’t attract the dust and regular WD-40 will attract the dust.

Tip: We recommend that you disassemble the CNC PRO to properly clean and lube all the parts.


Vacuum Plate


Vacuum plate is something we advise you to use. There are many different types of vacuum plates (ask RedArt Technologies for the one we have). The vacuum plate will help keep the fine dust and particulate matter from getting on the components of the CNC PRO.  They can be easily attached.

Tip: It is a good practice to vacuum your work space as you engrave to help control the debris in the area. A clean work space is safer for you and the CNC PRO.

We at RedArt Technologies want to provide education, training as well as helpful advise that makes all our users feel supported. If you have additional questions about dust or other job site concerns with the CNC PRO, let us know.


CNC PRO Leather

We appreciate our CNC PRO owners because they help push the envelope of what is possible.

For anyone wondering, “Can the CNC PRO can work on leather?” The answer is yes.

Michael Wanco of Bolder Engraving has some great tips on CNC PRO leather work.


  1. Find thick leather to work with.

(Tip: Check with a local shoe repair shop and ask them for a few scraps of their thickest leather.)

  1. Stretch the leather across a piece of wood and screw it in place.

(Tip: It’s worth making a specifically sized wood jig for multiple similar projects.)

  1. Change out the bit to one for leather.


  1. Take one of those many busted end mill bits you have, flip it around and grind the end to a rounded (ball nose) profile.55373388771--1E19DBC2-927A-4DEA-A396-0BA12D79B28A
  2. Use the ball nose tool profile and start out with 0.01 depth. Set your feed rate to 60-70%, and your spindle speed wide open.



The CNC PRO is designed as a machine that can engrave on multiple surfaces. Leather is now officially added to the list of possibilities. Thank YOU Bolder Engraving.

Please Note: They are also a CNC PRO distributor for North and South Carolina. If you want to see Micheal in action, please check out his Facebook Page: Bolder Engraving Facebook