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Puller for collet ER16 and ER11

A simple puller device for ER16 and ER11 collet for a 3D printer (model in STL).

Download the model

Do not forget about the password on the archives!

Many have repeatedly encountered difficulties when removing \ replacing the collet in the collet holder. Thanks to a small groove on the collet, it holds perfectly inside, but at the same time it becomes quite difficult to pull it out.

A simple model for printing on a 3D printer will help simplify this matter.

Please note that the model is designed for an ER16 cartridge, if you have an ER11 cartridge, then it has a smaller diameter, which accordingly requires reducing the size of the model by 19%.

Which was actually done in my case.

Below are a couple of photos, there may be a small video on the YouTube channel (the channel is still in the process of filling).

But I guess a couple of pictures are more than enough to understand.

The model itself with explanations:

If the cartridge is the size of ER11, then it is worth reducing the size of the part to 81% (although it is possible that the model will go without reducing, only the nut will dangle there unnecessarily freely)

Приспособление для снятия цанг с патрона STL модель

Printed with a simple PLA plastic (any one will do in principle) with a filling of 60% and walls of 1.2 mm, I thought it would be better for the fortress, but with some skill (as it turned out in my case)collets are squeezed out very simply, even without much effort.

A device for removing the collet from the cartridge assembled STL model

We install the cartridge in the device.

A device for removing the collet from the cartridge assembled STL model with a cartridge

We put the cartridge with the collet in the recess and press on the collet itself, sometimes you need to turn the cartridge a little without reducing the pressure of pressing. In some cases, the collet drops out even with a small push.

A device for removing the collet from the cartridge assembled STL model instruction

And that's it... you can download it from our website.

Yes, not so long ago I read on the forum that such a model is useless, and you can just buy a few extra nuts ... for $1 ... I rummaged through all the shops, in Moscow you won't find $10 cheaper for a nut, and even then the delivery is paid, and on Aliexpress the cheapest costs $5 (in quality - I don't even know), and it will take a month to go (and even more to the regions). And I needed it now and preferably "inexpensively". So it's up to you to decide whether to buy more nuts or use a collet removal device. Although I personally ordered two more nuts for myself, it's natural for Ali, since I mainly use only 3 milling cutter diameters.. but they won't come soon, but for now I'm successfully using it. The cost of printing 20 grams of plastic PET 10 cent...

Download the model

Do not forget about the password on the archives!