Very clean design! Since there are three screws for keeping alignment, the detaching is essentially pulling (instead of sliding) the magnets apart. Is a lot of force needed to do that since you also showed the attachment is strong enough to shaking everything. Keep up the awesome R&D!
Thanx man! Yes, the three pins are to keep alignment in X & Z, and the magnets are for Y alignment. Really strong and stable! More tests will follow. Peace.
Really nice solution!!! Just pay attention to that metal brush with the electronics under it! Sometimes the wires can come off and if one of the wires fall right over your duet or power source it can lead to issues :D
Bruno Porto Thanks! And good point for the brush! Luckily the electronics box is on the other side and they have the enclosure as separator (in the design not on my actual prototype :D)
So happy to see someone doing this - I'm in process of raising funds for my printer that has been a long way coming now and I've had a tool changer design as part of the design from day one. I hope soon to be able to help contribute and learn from all the amazing progress you have made - with the times coming out with so many new filaments for strong prototyping applications its valuable to have many different primed and ready hotends with the capability to make water soluble supports and print in so many of the ever growing FDM capable materials :D Love the work - Would love to chat on google+ etc if you ever have the time! Many thanks!
Thank you! And wish you all the luck with your printer! Yeah I think tool changing is the only way to go :) Unfortunately I'm often on social media websites, but you can drop me comments here or on thingeverse. Regards
@@RajaaKahel I just remembered this was a Duet Build ! I have had such a hard time to find any tool changing code examples for Duet - Would it be possible to share your config files? ill shoot you a message on thingiverse!
@@WarThunderGerald Hi, unfortunately the free v1.0 version is no longer available. But I'm selling all the files and settings etc for a symbolic price of 25$. Read more on the design's page on Thingiverse :)
Rajaa Kahel okay - I messaged you there if you can check. I already have my own metal machined CoreXY conversion done - it’s only the code that’s of interest. ** oh wait you mean the tool changer design files ** Yes I’m Okay with that if it can get me up and going with tool changing !! :) check messages on thingiverse :D. Ty so much for the reply!
Well done, great idea and good to see you went with a duet, its actually nice to see your corexy design is so very similar to what i came up with, its correlation that either your idea or mine!! is not to bad as others are doing similar.
Thanks Mark! Yeah, the Duet is the best so far for me! Quality and alot of possibilities.. Do you have a link for your printer so I check it? I can guarantee it's my design, I have a whole history of the process since I started it :D it's nice to see other and similar designs tho!
Rajaa, my design was based on a Ft-5 kit that i threw away 90% of it and started again...I am away at work in Saudi Arabia unfortunately or I would show my design. I drew it up in sketchup pro, and printed, tested, threw away, redesigned and redesigned till i got what I wanted. I will try to locate the last sketchup design and post it. again great work
Mark Duncan I was just kidding! Me as well started by throwing most of the FT-5, but eventually kept the frame just to reduce the cost. I'm curious to see your printer because I liked the idea :) Be careful from the sun there!
love your engineering, Have you been able to measure the repeatability of your toolchanger ? Im looking at making one as well, also like e3ds idea about connecting the tool head but it would require an aditional servo... hmm
Thanks Kees! I actually haven't made a repeatability test yet, but will record a video doing it soon. Yeah a servo means more size and weight, that's why I made it this way.
Why did you remove the smart steppers ? Are you not able to make them work with Duet board? I thought the people at the company said they can work with Duet ?? Is that not true or is it not still using them for other reasons now?? Hoping to hear as I was about to order them to use on my Duet build! I see from video before with them on they are now not on the machine once you go from MKS to Duet board. Is it due to comparability? And if so have you checked recently if there is a way to use smart stepper with Duet board?? Many thanks !
I removed them to test the Duet drivers then I kept using the Duet drivers because they were excellent as well. I didn't try to connect the Smart Stepper yet in the Duet but it's easy, just find the pins you want to use. duet3d.dozuki.com/Wiki/Using_external_stepper_motor_drivers
Thanks! Most of the script is done in the custom macro files in Duet. These macros are shortcuts that are placed in different files sections in the Duet files, each is called automatically when a specific situation has/will happen. Read the first section here: www.thingiverse.com/thing:2537454
i was thinking about using 3 magnetic buttons , like the ones used on clothing, mostly becouse they come with a nice armor to concentate the magnetic flux and at least the ones i looked upon are quite precise. i think 3 of them will increase precision a lot. have you tried that? another options are countersink neodimium magnets like those you used to increase alignment using that same countersink, but i dont know if there is any kind of magnet with a coned shape? that can go in there. but there seems to be other options. a halbach array makes excelent aligment but it is really HARD to release. i have tried them wiht 5mm square magnets. maybe a hybrid array of those same 5mm permanent magnets but with some 5mm hand winded dc magnets... you could probably invert the polarity of them and release the head a lot easier. take a look too at (google the terms) "polymagnet smart magnets for precision alignment"
Hi, the magnets in my setup are not used for allignment. The three pins will do that. It doesn't really matter what magnets you use, the important thing is to find the size and strength that fits. And let the alignment be done by three precision pins.
I love that tool changer, i wanna one. Super nice and hard work there! Sick! Id love to have yours printer O_o My Custom made prusa mk2.3/5 haribo zaribo smoothieware printers look like shit when i look yours.
F4ilu2e Oh Haha Thank you!! I'm glad you like it! I'll work later on the look just like the design in the rendering. I had Smoothieware on Sbase, and had Marlin, but well, Duet in another world!
