IDEAS All cables pluggable

Discussion in 'Guides, Mods, and Upgrades' started by Alex9779, Mar 24, 2016.

  1. Alex9779

    Alex9779 Moderator
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    As I was thinking about replacing the hotends here I talked about getting plugs and sockets to make all cables pluggable to be able to change:
    1. hotends on a dual head
    2. heads from dual to pro
    easily.

    I now ordered the parts and I received them today and just wanted to get out some pics and facts.

    Pics first:
    IMG_0500.JPG IMG_0501.JPG IMG_0502.JPG

    They are quite light, a plug is about 25g, a socket 27g (@Henry feldman can this be considered 'heavy'?).

    I ordered the plugs/sockets I need to fit on the case and for the dual. Not for a spare pro as I want to start with making all pluggable but staying with the dual head for the moment and only change the hotends to Volcano.

    My calculations proved that I need
    • 6 PINs per hotend (heater, fan, PT100)
    • 7 PINs for IR sensor and cooling fans
    • 10 PINs for motors and enstop
    Using the plugs I linked in the other post, which I have now, I use 2 x 7 PINs for the hotends, 1 x 7 PINS for the IR and fans and 1 x 12 PINs for the rest.
    First I though of another combination but I wanted to be sure to be able to fit the biggest cables, the heater cables, properly because they have the biggest diameter and the 12 PIN seemed to small for those. That's why I went 2 x 7 PINs for the hotends and not 1 x 12 PINs.

    So I have to fit 4 plugs/sockets for a complete dual head.

    As you can see the connectors are not huge but pretty tough. They are made for +500 cycles, that should be more than enough and you screw them together.
    Unfortunately the contacts have to be soldered, not a problem for me, but maybe for someone else.

    Unfortunately I can't start because the seller forgot to pack the 12 PIN socket.
     
    Mike Kelly and Spoon Unit like this.
  2. Syko_Symatic

    Syko_Symatic Well-Known Member

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    I really like the idea of this having easily removable hotends and thus easily replaceable heater cartridges and PT100 sensors. They are some big connectors though! Can't wait to see it done.
     
  3. mike01hu

    mike01hu Well-Known Member

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    @Alex9779 The connectors do appear to be large although their weight is not an issue. I think I would prefer to have a fixed socket with the extruder leads on a free plug. On my current printer (K8200) I use D-type connectors with the socket attached to the Z-carriage and the extruder connections on the flying lead. Some pins are parallel connected for the high current heater connections; not necessary but for cheaper connectors just a precaution. Amphenol connectors are rated at 5A per pin for signal level voltages, so are OK for this task; mine came from China via Ebay but the quality is good. I'll keep watch to see how yours turns out.
     
  4. Alex9779

    Alex9779 Moderator
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    I just can't understand why you all talking about the size.
    I plan to mount the plugs at the top of the spine. For this I wanna design a new top spine part where the sockets sit in.
    So the connectors are right above them and I still have the cable span across in a sleeve like they are now.

    I had a look at Jos van der Plas soluation he posted on G+. He cut the cable right on the head, thats possible too but I do want to keep long cables from the components reaching to the back top of the machine...

    So the size or the weight is not an issue...
     
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  5. Syko_Symatic

    Syko_Symatic Well-Known Member

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    Not complaining just noting they are big.
     
  6. mike01hu

    mike01hu Well-Known Member

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    Ok Alex, I see where you are coming from now.
     
  7. Chase.Wichert

    Chase.Wichert Well-Known Member

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    Ahh I just pictured those plugs zip tied to the Extruder Carriage..
     
  8. Henry feldman

    Henry feldman Well-Known Member

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    Yeah, me too, ignore my questions about weight then...
     
  9. Alex9779

    Alex9779 Moderator
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    Fine then I seem to be good if that has been everybody's problem :p
     
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  10. Alex9779

    Alex9779 Moderator
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    Ok yesterday I designed and printed the part to replace the top spine part.
    Datei 25.03.16, 09 28 40.jpeg Datei 25.03.16, 09 29 02.jpeg
    Yeah I know there are some extrusion issues but it works...
     
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  11. Syko_Symatic

    Syko_Symatic Well-Known Member

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    Now that is cool!

    Where does the PTFE go?
     
  12. Alex9779

    Alex9779 Moderator
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    Oh well there are the same curled holes in it like in the original part. Hard to see on the pictures...
     
  13. Syko_Symatic

    Syko_Symatic Well-Known Member

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    I like it will have to look into doing something similar I am trying to source some different slightly lower profile Molex plugs but this will be a more longer term thing for me. Currently I am just trying to get some consistent printing!
     
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  14. Sarah Nicholson

    Sarah Nicholson Well-Known Member

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    I hadn't thought of putting the connectors on the spine, that's a really clever idea and should look really clean. I was going to go for smaller connectors and the half-assed ziptie method ;)
     
  15. Alex9779

    Alex9779 Moderator
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    I looked at a lot of connectors, but the normal connectors are sometime hard to fit and looses like multi row molex. And they are not made for being connected often.
    Not that I plan to change hotends or heads on a daily basis but I wanted something reliable. If something does not work correct I do not want to have to check every single part of the machine.
    Yeah someone might say this is over sized but I think it will look pro, not tinkered...
     
  16. Kanedias

    Kanedias Well-Known Member

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    Looks sturdy :p

    You could add some colour code rings as a visual cue for what goes where.
     
  17. Henry feldman

    Henry feldman Well-Known Member

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    Now that is super cool. They should roll something like this back into the next BB v2
     
  18. Alex9779

    Alex9779 Moderator
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    Only the fact that I have to recable the box scares me...Have to remove the base to put all the cables for one connector in one sleeve. That's the best way to do it... If I do it I do it right. I thought about just cutting them, leaving them in the current sleeve but that would not look good in the end...
     
  19. Kanedias

    Kanedias Well-Known Member

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    I'm going to need another PT100 and heater for my volcano anyway so those'll be the ones that get chopped. Just in case...
     
  20. Callumb

    Callumb Member

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    I would of used something like the Japanese CB Microphone connectors. They come in multiple different poll numbers and are a lot smaller and lighter.
     

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