CNC to M&M

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Project by horky posted 12-03-2017 09:11 AM 1411 views 5 times favorited 10 comments Add to Favorites Watch

I have access to a CNC so I have been learning/playing. Saw this candy dispenser and just had to try one. Cut the parts out of an MDF sheet. When clamped I noticed the gear did not spin freely as it is the same thickness as the spacer behind it. A couple of paper shims above/below the spacer and voila, it worked just fine. Sealed the MDF with shellac but the paint still did not take evenly. Those MDF edges just sucked up the finish. Should have used a primer on the edges. Oh well, all part of the learning curve. Next one will be walnut/maple, cherry/walnut or ??? Just having fun. Thanks for looking.

10 comments so far

View majuvla's profile


13350 posts in 3064 days

#1 posted 12-03-2017 11:11 AM

Beautiful colourfull project.

-- Ivan, Croatia, Wooddicted

View irtamos's profile


284 posts in 2241 days

#2 posted 12-03-2017 12:32 PM

Well done!

-- irtamos, Belgium

View woodify's profile


316 posts in 2269 days

#3 posted 12-03-2017 12:56 PM

My two favorite things woodworking and m&ms.

-- Woodify ~~

View helluvawreck's profile


32087 posts in 3064 days

#4 posted 12-03-2017 01:12 PM

This is a very creative piece and you did a fine job on it.

helluvawreck aka Charles

-- helluvawreck aka Charles,

View jeffswildwood's profile (online now)


3589 posts in 2174 days

#5 posted 12-03-2017 05:39 PM


-- We all make mistakes, the trick is to fix it in a way that says "I meant to do that".

View MT_Stringer's profile


3183 posts in 3428 days

#6 posted 12-03-2017 06:20 PM

Good job. I like it. I need to make one for….myself! :-)

-- Handcrafted by Mike Henderson - Channelview, Texas

View Desert_Woodworker's profile


1631 posts in 1411 days

#7 posted 12-03-2017 07:20 PM

I like it- good job

-- Desert_Woodworker

View oldnovice's profile


7316 posts in 3565 days

#8 posted 12-05-2017 12:43 AM

The jar isn’t big enough …. !
I like this idea, nice bright color’s and elegant design.

-- "I never met a board I didn't like!"

View Natobious's profile


49 posts in 902 days

#9 posted 12-08-2017 08:47 PM

One of my lessons learned. When I cnc cut MDF for a stack up like yours, I now add at least 3 or 4 dowel holes to align the parts. You can have through holes for the center pieces and partial depth holes for the ends. Then for glue up everything is aligned on long dowels. I use wooden dowels for glue ups and if the stack up is meant to disassemble I use steel bar stock with threaded ends.
Also, I often add a radius to the corners of 1x or 2x the bit diameter. Less jerky for my cnc router and mdf corners will break or dent ore easily.

And one more, it looks like you are making many passes at shallow depth, which is great for the cnc machine but leaves lines on the finished product. For MDF cut the pieces 0.002” oversized and then do one final pass at full depth to cut off the extra thickness. For real wood I like to add 0.003”. I use Fusion360 so this takes less than a minute to set up.

View horky's profile


250 posts in 3128 days

#10 posted 12-09-2017 01:00 AM


Great inputs for sure. I am still learning the CNC stuff. I thought about the dowel thing but just did not do it. As for the corners/radiuses/final passes .. seems to be spot on.

Thanks for sure.

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