It's FINALLY HERE: WD40 Drip Can How to Video

Sorry this took so long…

NC Files are below

I got so tired of wasting WD40, spraying way too much, or forgetting to spray, etc, so I created this simple little device. It provides a little WD40 exactly where it needs to be in the right amount for cutter lubrication, and improved surface finish on Aluminum. You can mount this on any CNC make and model Hobby type CNC machine, you just need to make the appropriate mount.

Does it help cutters last? Well I am still using the SAME 1/4inch 4 flute end mill that I bought for the machine back in Nov 2015.

I HIGHLY recommend that you ONLY use coated cutters.

As always, leave me a message if you have any questions.

List of Material:

  1. A 3-oz can of WD40 Lowes SKU 569152
  2. 3/16 or 1/8 Brass Pipe (about 4 inches) Lowes SKU 364224
  3. 1/4 In OD X 1/8 In. MIP Valve. Lowes SKU 748440
  4. Some lead/tin solder and flux
  5. 1 Inch of 1/4 OD Copper Pipe (Ref Ice maker kit)
  6. Some old small magnets
  7. Some Hot Glue
  8. Salt (table)
  9. Masking tape
  10. About 6 inches of a metal coat hanger (OR 12 gage copper wire)

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NOTE 1: The Carbide Create file does not have the 1/4 corner radii because after spending hours trying unsuccessfully to get them there…I just gave up. Use at your own risk

WD40.c2d (5.7 KB)
WD40.egc (109.8 KB)

NOTE 2: Fusion360 NC file: (Use at your own risk)

WD Can Holder Rev (62.8 KB)


This is awesome, thanks for sharing with everyone. One question, how do you extract the slurry (if that’s the correct word)? Can a dustboot pull it out? Or do you need to plan your cuts somehow to account for it?

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Good question. Since I’m only using a couple of drops of WD-40 a minute, and the chips are warm/hot almost 100% of the liquid evaporates leaving the chips nearly dry. Since this is a metal they have enough mass not to be blown around, so they stay in place so I don’t use a dust collector. If there are too many chips, I’ll push them into a pile (out of the way) and at the end of the job I sweep them up and put them a 5 gallon bucket and recycle them. I am about one third full on my second 5 gallon bucket by the way.

Note The 3/4 x 3.5 boards are used to keep the chips away from the lower Y-Axis V-Wheels

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Thank you very much Rich, wonderful, and just out of curiosity, where did you buy that 1/4" shank dove tail bit, in the last image?


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From: ($12) Three (3) vises, and about 20 Vise jaws and it is still sharp

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Richard thank you, it never occurred to me to try wood working bits for T6 6061 - only need 2 dove tails, i’ll give it a go - thank you very much



I’ve confirmed that this drip can will fit into the Nomad as well. I made a couple of changes to made sure it would fit by rounding the outer edge of the bracket and reducing the width to 0.3". I’ve also used some 3M dual lock Velcro instead of double sided tape so that I can detach the assembly to fill the drip can.

Thanks for the tutorial Richard!



That’s a thing of beauty!! I love the velcro idea. I changed out the double sided tape to some nice strong magnets…which works great…except when machining steel, lol.

Remember to get some good coated end mills too, and enjoy. I’m looking forward to seeing your machining metal projects soon.