View Full Version : Question about threaded inserts

03-30-2015, 03:30 PM
To those that use threaded inserts, what grid spacing worked best for you?

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04-01-2015, 12:23 AM

I have a 4in x 4in spacing over the entire table, and then a 2in x 2in spacing in the middle fron 24x24inchs of the machine. Works great.

04-02-2015, 10:27 AM
Thanks nlancaster, I was thinking 8x8 at first then mapped it out and it didn't leave much options. I may go to 5x5 and use a closer cluster in the middle.

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04-05-2015, 09:37 AM
Are you guys using like a 5/16"-18 ez lock insert? Do you epoxy them when you install them? I've used them on other things I'd just be a little concerned about being able to get the clamps tight enough.

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04-05-2015, 11:17 AM
I have not cut mine out yet but I plan on putting them in the bottom birch layer and gluing them in so they won't come out. And I am going to use 1/4-20 ez lock zinc inserts.

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04-05-2015, 11:36 AM
In the table on my homebuilt machine, I used 1/4-20 t-nuts sandwiched between two layers of MDF. I routed pockets for the bases of the t-nuts.

I use a 3" spacing along the Y axis, and for the X axis, I start at 3" for the first 24", then use a 4" spacing.

04-05-2015, 02:54 PM
I used 1/4-20 Ez Lock inserts into a main table surface of Baltic Birch. IT was only $60 for a 60x60inch peice of baltic birch from a local supplier. I would not use those Ezlok inserts in MDF, I think it would be too easy to strip them out.

I did drill all the holes in the table for the inserts using the CNC Machine itself :D

04-05-2015, 02:59 PM
I planned to use the CNC to drill wanted to use mdf for for base board simply because I have no local supplier for Baltic birch but I'll probably see about sourcing some for this project. It should be worth it in the long run. Went this far. Haha

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04-05-2015, 08:12 PM
100 Pieces Threaded Insert Nut 1 4 20 Int Thread Made in Germany | eBay (http://m.ebay.com/itm/320969720462?nav=SEARCH)

I use inserts like the link above. EBay has tons to choose from.
I drill the holes with the cnc. Then I threadmill the holes and glue the inserts with a drop of superglue between the threads. Works great.