3d brass insert punch – Woody's Workshop

It is likely to make my Dremel redundant.

I came across the Fanttik via a sponsor link on a YouTube channel. I had just struggled with a fine engraving job where my Dremel was just too large and unwieldy for the delicate work involved. Out of curiosity (and frustration) I bought the Fanttik and was very impressed with the quality. The packaging of the product was on a par with Apple and product casing impressively over engineered.

Maximum speed is 25,000 rpm and it is supplied with carrousel of tools. There are plenty of sources of spare 2.3mm shank tools available on Amazon including sets of drill bits. (The 2.3mm shank standard means that most Dremel tools are not suitable).

I recently made a modified version of the 3D printed JSK soldering iron brass insert press. The JSK design is well thought out, is rigid, spring loaded and works very well. (Note that I had to print the column in two sections as my Qidi X Smart build volume was too small). I made a revised gripping sleeve for the press to grip the Fanttik so the press now acts as a mini drill stand for small diameter holes such as on PCBs. The run out on a 0.8mm drill bit was not visible to the eye. Here’s the finished press. Excuse the perforated base plate – you have make use of what is functional and to hand.

More workshop tooling …. but this one ticks two boxes, insert press and mini drill with a quick swap out depending on activity.

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A simple solution for holding a soldering iron when inserting brass threaded inserts into 3D printed items

NOTE – This is a revised posting with a modified write up.

When faced with adding threaded holes into 3D models I am faced with three choices.

The easy option is to model the threads in Fusion 360. This is fine for a ‘fit and forget’ single fastening but for repeated screw insertion and removal the modelled thread will begin to wear.

My preferred solution is to use embedded nuts in the plastic or leave an open hex cavity to fit a nut into after printing. Some jobs do not have enough space to use the embedded nut technique so brass inserts are the next choice. Brass threaded inserts come in a number of sizes and geometries and are available from Amazon and other sources. The inserts are melted into the printed medium with a soldering iron or other such heat source.

Having had mixed success with a handheld iron I pondered for a while with Fusion 360 whether I could make a jig to improve insertion repeatability. This led to some internet searching and finding a couple of solutions. The first one was via Clough42. He showed a heavily engineered solution supplied by Naomi Wu.

Naomi’s product was impressive but seemed to be way over the top. Next up was a site by Valera Perinski. His site is remarkable and oozes all manner of 3D printed objects, one of which was just what I was looking for – a simple insert punch.

https://www.myminifactory.com/object/3d-print-stand-press-2-in-1-80752

Valera’s design, while simple, looked elegantly functional. I downloaded the STLs. Valera offers these free of charge with a comment that he would appreciate any contributions. A contribution was duly made. Thank you Valera !

My modified version of Valera’s design is shown above and is described in the attached ZIP file along with the my versions of the 3D print STLs.

insert punch v4 Download

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Tag: 3d brass insert punch

Fanttik super tool is well worth a look

3D Printed Brass Threaded Insert Soldering Iron Stand