Heli-coil Tap Geometry?

[Ali]

I’ve just used a conventional nut before. Pause the print (or put a stop point in code), put your nut in and carry on.

 

[mike os]

using a helicoil will only increase your printed thread strength to the next size up, which may be adequate, or are you trying to produce something to take apart often?

A nut printed into the part or print a slot and slip it in after will probably be stronger

 

[Screwdriver]

Square nuts are better at resisting torque and easier to make a pocket for. Something I haven't tried yet but intend to use is to model the pocket inside a design, pause the print at the appropriate moment, insert the nut then resume the print over the top. Bit of a faff but I am still so new to the game, I often sit and watch the thing anyway. I find it quite relaxing...

 

[mike os]

Square nuts are better at resisting torque and easier to make a pocket for. Something I haven't tried yet but intend to use is to model the pocket inside a design, pause the print at the appropriate moment, insert the nut then resume the print over the top. Bit of a faff but I am still so new to the game, I often sit and watch the thing anyway. I find it quite relaxing...

Bit like 5 axis cnc....

 

[Shox Dr]

Heliciol wire is usually 0.75 or 1.mm section so lots of standard taps will work, but many do not, requiring weird tap sizes

 

[Agroshield]

Helicoil wire is usually 0.75 or 1.0mm section so lots of standard taps will work, but many do not, requiring weird tap sizes

Which bit of it is this or these dimensions? Surely the wire is diamond in cross-section, with two 60 degree and two 120 degree angles. Any picture showing dimensions? The calculation is not trivial as the major dia. of the inner thread will be opposite the minor dia. of the outer thread.

 

[Shox Dr]

Which bit of it is this or these dimensions? Surely the wire is diamond in cross-section, with two 60 degree and two 120 degree angles. Any picture showing dimensions? The calculation is not trivial as the major dia. of the inner thread will be opposite the minor dia. of the outer thread.

the longest edge I would say, point to point. Cant remember where I got the info.

 

[Screwdriver]

This is quite revealing.

He does a fair bit of testing and it is well worth browsing his channel for some empirical information regarding the science of plastics.