Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!

Quick tool change with Z-homing

by ProperPrinting Oct 31, 2019
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Can you upload the Fusion files?

I've sent you a PM :)

awesome! but you should really use an optical sensor tbh! mechanical switches have too much travel which in this case can reduce the accuracy due the bend and pressure on your bed.

Thanks for the suggestion! That sounds logical but my gut feeling says that this force should always be the same, so the bending as well. As I've mentioned in the description, this is something I definitely would like to test. I have printed quite a lot already and my first layer is spot on at all times. What I tried to accomplish seems to work :D. An optical sensor is definitely something I want to examine further, thanks again!

Nice, I love the idea! That's just the way I think as l change nozzles all he time, so this could be so cool, I'm going to print this and let you know how I get on with it! Thanks for sharing your great ideas and files ✌

Nice man, thanks for trying this out! I'm very happy with this mod because it was always a bit of a hassle for me to adjust everything after changing between the stock hot end and the E3D. I'm really looking forward to your findings, good luck!

Thanks a lot, mate! I was waiting for this one! I now have no reason left to procrastinate from rewatching all your videos and implementing the tool change system!

Thanks man for your comment and watching my videos!! Awesome that you want to implement the tool change system! Contact me if you have questions :)

Yes. I do need two lengths to create a tool holder for my motor. I have attached a pic to show the lengths I need. It will be easier to modify the older blank tool with these two lengths imo.

A couple of other questions as well.

  1. I was thinking of using https://www.thingiverse.com/thing:53451 as bearing instead of using the plastic pulley wheels. I am not really good with CAD software and could use your help in adapting those to the required size.

  2. Going a step further, how about incorporating https://www.thingiverse.com/thing:21234 or from https://www.thingiverse.com/thing:1690305 or a spring similar to the one used in https://www.thingiverse.com/thing:5713? This will avoid having to use the click pen springs you mentioned.

  3. Also, wouldn't it be a good idea to reduce the travel distance between the tool touching the base plate to the switch activating? A high travel distance will make the system a bit weak and could be a problem. Especially when using a Dremel or CNC module.

  4. You have written about using plastic with a high melting point to use for the hotend adapter to avoid it getting melted. How about creating a mould for the hot end holder and then using something like epoxy/cement mix/plaster etc to have a strong holder that does not melt. This is just a thought I wanted your opinion on.

Update: I experimented a bit with these ideas and the springs might not be worth it though.

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