Heat set inserts...

A forum dedicated to the stock LulzBot TAZ 3D Printer
rohan
Posts: 14
Joined: Tue Jun 04, 2013 2:41 pm

Re: Heat set inserts...

Post by rohan » Wed Jul 24, 2013 9:26 pm

The holding force can change a lot depending on what direction the force is being applied to the insert. If you are pulling and insert up out of the surface of a part, not that much. If you put the insert on the back side of a hole and pull the insert through the part it can hold a lot more.

rsilvers
Posts: 35
Joined: Sat Jun 22, 2013 12:07 pm

Re: Heat set inserts...

Post by rsilvers » Tue Aug 13, 2013 11:10 am

I learned that the reason why the holding force was weak was that I was not using much infill. With 100% infill, they have a lot of strength. There is probably some in-between infill that is good.

As for the tip - I now learned that any sharp pointed tip is good. I never had a sharp pointed tip as I was using a junk soldering iron. If you buy any soldering station, it will have a sharp tapered tip that will work well.

rsilvers
Posts: 35
Joined: Sat Jun 22, 2013 12:07 pm

Re: Heat set inserts...

Post by rsilvers » Tue Aug 13, 2013 4:34 pm


aadamson
Posts: 48
Joined: Wed Jun 05, 2013 2:53 pm

Re: Heat set inserts...

Post by aadamson » Tue Sep 10, 2013 8:12 pm

Anyone recommend a hole size to print for these 3mm heat-set inserts?

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gannon
Posts: 47
Joined: Wed Jul 10, 2013 11:42 am

Re: Heat set inserts...

Post by gannon » Tue Sep 10, 2013 9:48 pm

In the TK-0 openscad files I used a 4mm diameter which when printed was a little small. I would think 4.5-5mm would work well.

mcamou
Posts: 29
Joined: Mon Mar 07, 2016 12:14 pm

Re: Heat set inserts...

Post by mcamou » Sun Apr 17, 2016 1:48 pm

Sorry to drag this out again, but... I just bought a Zebra Plate and am thinking of using these http://www.thingiverse.com/thing:640414 . I see 2 M3 inserts in the McMaster-Carr page that 1013 posted.

Is it this one? http://www.mcmaster.com/#94180a333/=120wb5q
Or this one? http://www.mcmaster.com/#94180a331/=120wbzx

Also, does anyone know someplace where I can source them in Germany (or at least in the EU), and that they don't ask for 100 unit minimum orders?

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piercet
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Re: Heat set inserts...

Post by piercet » Sun Apr 17, 2016 2:04 pm

For that particular application you want the 3.8mm thick ones (the second link)

You might Pm sebastian and see if he found a suitable source for them.

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piercet
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Re: Heat set inserts...

Post by piercet » Sun Apr 17, 2016 2:06 pm

You know, I'm actually kind of suprised someone hasn't set up a "we'll charge you a handling fee of some sort to ship 3d printer parts you can't otherwise get to Europe" service of some sort. I bet someone could make some serious money shipping 10 insert packs to europe for a couple dollars over base cost and shipping.

mcamou
Posts: 29
Joined: Mon Mar 07, 2016 12:14 pm

Re: Heat set inserts...

Post by mcamou » Sun Apr 17, 2016 2:38 pm

piercet wrote:You know, I'm actually kind of suprised someone hasn't set up a "we'll charge you a handling fee of some sort to ship 3d printer parts you can't otherwise get to Europe" service of some sort. I bet someone could make some serious money shipping 10 insert packs to europe for a couple dollars over base cost and shipping.
...or Lulzbot could carry all the non-printable hardware in their online store... (hint, hint) ;)

tmorris9
Posts: 306
Joined: Sun Jun 15, 2014 11:23 pm

Re: Heat set inserts...

Post by tmorris9 » Sun Apr 17, 2016 3:12 pm

I have inserted them many times by screwing them onto a bolt, hold the bolt with pliers, heat the end up with a micro torch (even a lighter will work) and then push them in place, let cool and unscrew the bolt.

One small advantage to my method is that you are holding it straight and in place while it cools so you know it's not leaning or sinking in too far. I would not want to do more than a few at a time this way but it works.

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