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3D printing for accurate drill holes...

tom86951

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May 14, 2005
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CA
I've been using my 3D printer to make drill jigs, and thought I'd share. The plasitc jigs are good for a couple rounds of holes, and you can add a brass bushing if you need to make lots of parts from the same jig. The results are CNC-accurate -- way more accurate than anything I can do with a center punch. The plastic (or brass) guides the bit to "exactly" the location you need. In the pictures below, the holes in that bracket line up exactly with the mating flange. Just thought I'd share in case the idea is useful to anyone...
 

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nadogail

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Why spend a little money to buy a tool, when with a lot of money you can make your own with Bragging Rights
 

cvairwerks

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We’ve been proofing modification and short run repair tools like this for years now at work. Engineering can print a test tool overnight, proof run it the next day, and if good and going to be multiuse, send it out for buildup. For a one time repair task, do the repair and send it to the recycle bin.
 

mudcat

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Wisconsin
I have been doing this at work. I order drill bushings from McMaster and glue them in. I do a lot of work with 80/20 and the printed jigs work great. So far they have held up really well.
 
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tom86951

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That's awesome. Can you share what printer you have?

I have had several, but my current printer is by far the best. It's a Lulzbot Taz 6. It's open source, so can be modified to your heart's content to print just about any material available, and it just keeps going and going and going.... Sadly, Lulzbot is suddenly under new ownership and the early indicators are not good from my perspective. :( There are also a host of cheaper printers these days that can do this kind of thing with ease, e.g., Prusa, Ender 3, etc.
 
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tom86951

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CA
We do a lot of stuff like this at work. You can also 3D print jigs to hold complicated parts for machining.

Possibilities are endless right? I just printed a stand to paint the bracket those holes were for -- so I could get all sides at once without hanging it from a wire and blowing it around with the spray paint. :)
 

jkeyser14

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Dec 19, 2008
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(rural) Maryland
Possibilities are endless right? I just printed a stand to paint the bracket those holes were for -- so I could get all sides at once without hanging it from a wire and blowing it around with the spray paint. :)

Yup. We don't mess with hobby printer though. Those things have turned out to be a waste of time.
 

niget2002

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Oct 2, 2012
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Josephine, TX
Must of my CNC router was printed on my 3d printer.

I use my printer a lot for electronics enclosures or for brackets for hanging things on the wall.
 
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