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DaVinci2000

T-nut M3 drop-in rotating 2020 V-Slot (Tevo, Creality, Tronxy, Anet)

by DaVinci2000 Aug 15, 2018
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Hi there, nice design! I just wanted to let you know that I often see this type of part referred to as a "drop-in" t-nut, which may help other people find your part if you added something like that to the description.

Yes, I knew about that, but there's a limited space for title and I skipped that phrase. I added it now. Thanks for hint.

Beautiful, genius. I love them...thanks

Ran off a copy of the x6 group. Must have under extruded a tad as the nuts from my kit are loose in the part. Nothing a dab of glue won't fix though. Plan to use them where ever I can that's not load bearing.

Keep in mind that regular T nuts are threaded all the way through. You'll need an extra 1-2mm of screw length to account for the plastic between the face and the nut.

Works Very Well! Thank You

Bravo et merci ;-)

KISS methodology - Genius level. It's always the simplest things that are the most impressive.

this looks way bigger then m3, is it really m3 bolt and nut?

It's designed for exactly M3 nut and bolt if printed in 100%

Does anyone know what size screw and bolt uses? I may have to 3D print a bolt & nut to go with us but I'm not sure what the size is

The T-nut adapter is for metric M3 nut and so also bolt.

I wish I had something constructive to add, except that these are awesome. I also love the fact that the files you provided give you a choice of making multiples in one print without adding a ton of them into a build. Thanks so much for these, you're a champ!

wanted to upgrade to a more stable idler block on my x5s and found one that adds 3 anchor points but I ran out of Tnuts and theres no one in town that supplies them this saves me a few days of waiting thanks

Thanks, worked great in PLA for what i needed.

鬼才设计……惊了
amazing design……im shocked

Any idea if this will work on Prusa mk3?

If the width of groove in aluminium profile is 6-7 mm then the T-nut M3 adapter should work fine - slide in groove and self lock when turning.

I'll check, thank you :)

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People should use these and some other similar stuff as space filler when there is need to have supports by just inserting them next to the model so they will have a lot of them for free

Thank you for this thing! Thumbs up to you!

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Thank you for this thing! Thumbs up to you!

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Thank you for this thing! Thumbs up to you!

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Thank you for this thing! Thumbs up to you!

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Question: Why are these T-Nuts never circular? (I understand they wouldn't be called T-nuts then)
I am always struggling to keep these correctly aligned when in the rails.

If they were circular it wouldn't be possible to insert them in the slot when the end is not reachable.

The full metal T-nut also don't always align to rail's groove / lock in place, especially when inserted from the top in horizontal profile. I found it helpful to give it a lot of play at first and shake it slightly when screwing. It helps t-nut to grab the rail groove with the indent on top of it.

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Thank you for this thing! Thumbs up to you!

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Lots of great stuff. Appreciate the effort.
If you were ever so inclined a part that probably get a reasonable amount of attention from us US folks is T-nuts sized for SAE machine screws. Metric is about 5 times the price here still unfortunately. Just the 2020 is bad enough.

Try the "Blue" super store. They have metric hardware at reasonable prices for small quantities.

Let me know what are the sizes of the SEA nuts you're interested in and I'll try to prepare T-nut adapter for that.
Please mind that the limit is 6mm width of 2020/2040 V-Slot alu profile's groove. Unless you use different profiles.

Not Op, but I think a #4 - 40 bolt would be comparable in size to 3mm, and the nut should also fit into the extrusion slot

True, #4-40 x 3/16'' nut is quite close to dimensions of M3 nut. I prepared T-nut adapter for that nut: https://www.thingiverse.com/thing:3366563
Let me know if it fits well, as I don't have Inch nuts/bolts around.

T-nut #4-40 x 3/16'' rotating 2020 V-Slot (Tevo, Creality, Tronxy, Anet)
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Perfecto !!! Thanks for re-doing this for the Ender3. Perfect fit.

Thank you for this thing! Thumbs up to you!

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Thank you for this thing! Thumbs up to you!

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Thank you for this thing! Thumbs up to you!

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Thank you for this thing! Thumbs up to you!

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Very intelligently placed parts for printing. I printed in a flat way and it breaked often but this designed was not just a design but a proper preset of components ready for 3d printing. Thanks sir.

I always take into account the print orientation when designing my models, whenever possible eliminating need for supports.

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This is a good find!
So far I haven't found these in the local hardware shops.

That's true. I think the closest hardware store with those metal t-nuts is in China ;-) I didn't want to wait 2-3 weeks for them to arrive.

i got mine from misumi and had it within 2 days

Sure, for almost 1 euro per piece is a pretty good deal for someone in hurry.

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I downloaded and loaded into Cura 3.4.1 and it's really, really big. I'm not sure if I did anything wrong as I'm not super printer savvy, but it loads in at 105x42x60 mm. Obviously that is not going to fit an m3 nut. Any suggestions?

Thanks for notifying me. The scale of single t-nut was messed after I rotated it to one side for proper printing orientation. It's fixed now.
I also published another set of 6 t-nuts.

Fixed and printed. Works fantastically, thank you!

This seems pretty cool. Was thinking of doing something just like this, then i found these lol.

When you say "no cooling" (batch), do you mean that when you use the batch model, throughout the entire print there shouldn't be any cooling?

Yes, when printing a batch (x12) cooling is not necessary as there's enough time to let single T-nut to cool down when another T-nuts are being printed.

will cooling cause issues?

I don't think so, unless material you're printing with does not sick too well if overcooled.
It shouldn't be enabled for the first layer, which should be printed even slower, 5-8 mm/s, to improve adhesion.

What is the stress integrity like? Have you broken one? Is there enough material that you can make for M5? I like it btw. Not all 2020 rails are built alike. With this you can adjust.

Although there's not much material between nut and profile it's enough for a firm grip. I haven't broken any. However because it's plastic and not metal I would rather not use these t-nuts for frame assembly but rather to install mods or accessories.
Unfortunately there's not enough space to fit M5 not even M4 nut in the 6 mm slot of 2020 V-Slot profile in this design.

loocking for this part since a long... txs

I run out of T-nuts and was looking for printable replacements but those I tried didn't fit so I designed my own version identical to original T-nut.