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5 Great CNC and 3D Printing Posts From Reddit

Jun 28, 2016   //   by Bob Warfield   //   3D Printing, Blog, CNC Projects, DIY CNC, Techniques  //  3 Comments

I’ve been spending time over on Reddit lately.  It’s a great resource that uses the Wisdom of Crowds to curate content.  What I mean by that is they not only vote content up and down, but they’re very strict about posting.  Nothing too spammy or too troll-like is tolerated.  Having dealt with some online communities that are overrun with Trolls, I value that.  To give you some examples of what’s to be found on Reddit, here are 5 posts I found just this morning that I liked.

Cheap and Cheerful Dust Control for Carbon Fiber Milling

Carbon Fiber is a neat material–extremely strong, lightweight, and gorgeous to look at.  But it is not without its problems.  As a composite material, it is very abrasive, and the dust it produces is hazardous to breath.  For more about machining the stuff, read our series on Composites.

It’s all doable, but on a hobby class machine, the dust control can be a bit vexing.  That is, unless you’re Apollo, one of Carbide3D’s founders.  He shows how to machine carbon fiber by submerging it in a little container of water:

CarbobFiberShapeoko

Clever trick, Apollo!

Here’s the Reddit Link and the link back to Carbide3D’s Community.

Harbor Freight Dust Collector with Thien Disk Separator

Adding a cyclone or other dust separator to your dust collection system or Shop-Vac is a great upgrade that we’ve written about before. Here’s a neat installation done on a shop dust collection system:

cyclone dust separator

Dust blower and separator-barrel…

cyclone thien disc separator

Disc separator is super simple…

3D Printed Fallout Cosplay Helmet

Cosplay (DIY movie quality props) are always fun.  This 3D printed helmet from the Fallout game came out looking spectacular:

FalloutHelmet

Imagine showing up to a costume party in this rig!

Some great tips in the article too.  For example, using iron filings to achieve the finish on the helmet.

Free Tutorial on Workholding

Sometimes you find gold in the comments of an unrelated post.  I found a link to Enerpac’s School of Workholding.  It’s a great set of articles on Fixturing.

CNC’d Business Cards for a CNC Business

How best to communicate your CNC business’s capabilities?  Perhaps by CNC’ing your business cards:

CNC'd business cards

Laser printed business cards.  They even come apart to make a little dollhouse-sized chair.  Aren’t they neat?

Conclusion

These 5 were just the haul form one morning’s trawling.  It’s not always this rich, but I do nearly always find something interesting to check out on Reddit.  You’ll want to decide which groups (subreddits) to investigate.  I generally hang out around 3DPRINTING, MACHINISTS, CNC, HOBBYCNC, SHAPEOKO, CNCMACHINING, MACHINING, and DIYCNC.

Enjoy!

 

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3 Comments

  • Bob;

    Just a caution about the dust collector system on your last blog post. There is a site by Bill Pentz, http://billpentz.com/woodworking/cyclone/index.cfm where he suggests that dust collectors like what you showed, give a false and dangerous sense of security.
    I found Bill’s site while researching a dust collector system to remove the smoke particles from welding. He relates how he set up a system like that in his woodworking shop and after having dust related health issues learned that the problem particles are not the ones you see but the ones you don’t see and are so small (less than 3 microns) they will pass through the kind of systems you show and these are the ones the EPA says will cause the most problems.
    Please have your readers visit Bill’s site, he shows how to build a better system, doesn’t charge for the plans and let’s you know the limitations of the system. I don’t have any interest in Bill’s site, just learned a lot from it and would like your readers to be safe..

    LaVerne

    • LaVerne, thanks for writing. I took a gander at Bill’s site, and there does seem to be some good info there. One thing to note about the system pictured is it exhausts to the outdoors. That makes all the difference. Bill offers HEPA filters for those that can’t exhaust the smaller particles outside.

      Cheers,

      BW

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