D-PATCH

taconite

@jpomo10 Nice to see that others are thinking about options aswell.

To be honest these were my first attempts aswell. The first concept was magnets and the second one permanent-electromagnets after that, but after a lot of testing I decided not to use magnets.

taconite

Hello guys,

I went a new way for the cooling of the tools without some parts of the sci fi attack hovercraft.
I added a fan to each tool instead. The data shows that the cooling is sufficient.

taconite

Hey guys,

so at the moment the printer is 99% finished. Just some minor modifications need to be done.

If there is interest in the community I will put the files on thingiverse and a BOM and some instructions on github - just let me know.

o_lampe

@taconite said in D-PATCH:

If there is interest in the community I will put the files on thingiverse and a BOM

I'm sure there is a big interest, but the custom CNC parts are cooling down my curiosity.
Why not open a (kickstarter) campaign and sell the required parts?

taconite

@o_lampe
Valid point but the good thing is the only custom CNC part necessary are the conical rings for the tools and those will not break the bank.

The sheet metal parts are not needed for the system to work. Everything else can be 3d printed or not a problem to source.

Currently I am working on an improved V3 which need more metal parts to be custom made, but this version should be a good option for the typical maker

o_lampe

@taconite said in D-PATCH:

The pieces of the bayonet that lock the tool are angled so a downward force is created by the rotation of the bayonet. It is locking onto 3 zylindrical pins that are placed 120° apart from each other so that the locking is uniformly

This part is the most interesting detail to me.
I'm currently planning to make a tool changer for my CoreXY with a Titan extruder. I want to change the heatsink only and until now I'm on a magnetic twist & snap road. Your design looks much easier to implement, but a CoreXY can't lower the effector to release the heatsink.
Anyway, I'll mention you in my Biography if I steal this idea from you

taconite

@o_lampe said in D-PATCH:

@taconite said in D-PATCH:

The pieces of the bayonet that lock the tool are angled so a downward force is created by the rotation of the bayonet. It is locking onto 3 zylindrical pins that are placed 120° apart from each other so that the locking is uniformly

This part is the most interesting detail to me.
I'm currently planning to make a tool changer for my CoreXY with a Titan extruder. I want to change the heatsink only and until now I'm on a magnetic twist & snap road. Your design looks much easier to implement, but a CoreXY can't lower the effector to release the heatsink.
Anyway, I'll mention you in my Biography if I steal this idea from you

What you could do is a C shaped bayonett so you open up the groove-mount and close it again. The C could hav a little bulk in the middle to press the groove into the correct position

o_lampe

@taconite
That's an option. I had a different idea last night:
I use these two hotend pickup pins as twist&lock pins, too.
The pins would be *U-*shaped and they are mounted into the heatsink-adapter. The tool changer would then connect with the pins and the guides inside the tool changer would twist the pins to unlock the hotend from the Titan housing. I have no idea how to design this twist in Fusion360. But I'll post it in my Blog

taconite

Hey guys,

just a quick update. Here you can see a printed spur-gear with different functionalities.

JoergS5

@taconite said in D-PATCH:

just a quick update. Here you can see a printed spur-gear with different functionalities.

Can you please explain the different functionalities? Seems you mixed different material to get different properties (stiffness, flexibility/compliance?)

taconite

So of course the functionalities come with the multi-material print

reduced friction and therefor wear
increased strength/stiffness
flexible material for compliance/dampening of torque peaks
Sensor element for the detection of wear

JoergS5

@taconite thank you for explaining! Do you use some of those BF350 as sensor or something different?

taconite

Better conductive filament

JoergS5

@taconite clever idea!

taconite

Here you can see some better pictures of the D-PATCH

HebigT

@taconite Happy to see this project alive and well!

PCR

@taconite would IT be possible to get the Files for rebuilding? Best

taconite

@HebigT slow and steady

@PCR Sure if there is demand I will put all the files plus BOM on Github (or similar). The one you see is lets say the "maker" version where you need close to no custom parts.

At the moment I work on another version with some improvements (which can be easily implemented in the maker version)

PCR

@taconite that would be great! I really Love the Idea of a Delta toolchanger!

Best

PCR

@taconite

Just saw that you started to sell the D-Patch! Really nice! When is ETA for the "Maker" Edition? Or are you selling the custom parts too? Greetings from someone who was born in bavaria too