Cable strain relief grommet needed

  1. GrahamGKD

    GrahamGKD Forum Supporter

    Messages:
    1,270
    Bournemouth UK
    I thought I should give these old soldering irons a birthday (especially as I just used the one which doesn’t have the lead cut off to repair a tap spout which would have cost me £70 to replace!). They were inherited from my dad. I was thinking new rubber cables, but the strain relief grommets are well perished. I was thinking it would be simple enough to find replacement grommets but I've just spent 30 minutes or so and I can't find anything suitable. I guess the originals are intended for a 1/2 inch hole but 12mm would be fine. I've tried Ebay, Farnell, RS and general searching on the web. Thegrommetcompany have the perfect thing but only in packs of 50 - what am I going to do with the other 48??

    2020-11-20 17.02.01.jpg

    Any ideas where to look or how to improvise a substitute? I guess I could turn up some kind of adapter from derlin to use a slightly smaller grommet but it needs to be big enough to take the 3 core rubber insulated cable.
     
    James1979 likes this.
  2. ukracer Forum Supporter

    3D printing would be perfect but you need a designer. I cant design but I can print..lol
     
  3. hotponyshoes Member

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    3,398
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    Somerset. Uk
    Can you adapt a skin top fitting to mount in there somehow?
     
  4. JEZGUZ

    JEZGUZ Member

    Messages:
    481
    West Midlands UK
    You could send a couple of grommets my way, I've got an identical iron (the big one) with exactly the same problem.
     
  5. GrahamGKD

    GrahamGKD Forum Supporter

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    1,270
    Bournemouth UK
    Great - just need another 47 volunteers!!
     
    James1979 likes this.
  6. GrahamGKD

    GrahamGKD Forum Supporter

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    Bournemouth UK
    Not sure I follow your thinking - 'skin top'??
     
  7. Seadog

    Seadog Forum Supporter

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    I've a couple of 65W Solons, so I'd take a couple :D
     
  8. 8ob

    8ob Forum Supporter

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  9. voipio Member

    Messages:
    1,001
    Cambridge, UK
    It might be worth trying an appliance repair shop. I recall seeing strain relief grommets similar to that on old clothes irons. The Morphy Richards Senior model springs to mind.
     
  10. hotponyshoes Member

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    3,398
    Location:
    Somerset. Uk
    Cable gland
    This sort of thing
    download.jpeg-2.jpg

    I have got some that might be around 12mm thread.
    Glue the threaded bit in the **** end of it.
    You might be able to tap out the hole where the grommet went but I think they are wooden handles or bakelite or something else that's probably not going to tap very well.
     
  11. GrahamGKD

    GrahamGKD Forum Supporter

    Messages:
    1,270
    Bournemouth UK
    HV2107 might just do it - when I look back at the Farnell site they say mounting hole 10mm (which is why I dismissed it) but the data sheet you linked says 11.5mm, which is probably close enough.

    Thank You.
     
  12. 500e

    500e Always buy fire insurance a flood is hard to start

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    SWest UK
    If you cant find the grom PM me your add & I will send you a couple of ones I used on my fathers Remploy iron the tail is short about 25mm 350Th hole, so I extended grom with heat shrink///////had been ok for 2 years DSCF0001.JPG Can spare 1 or 2 :D
     
  13. GrahamGKD

    GrahamGKD Forum Supporter

    Messages:
    1,270
    Bournemouth UK
    Thanks all, for the suggestions and offers - I will give the Hellerman HV2107 a try and see how that goes.
     
  14. 8ob

    8ob Forum Supporter

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    moscow on thames
    A chunky flex is going to expand it a tad.

    Bob
     
  15. hotponyshoes Member

    Messages:
    3,398
    Location:
    Somerset. Uk
    You can always build the flex up with heat shrink to stretch the grommet out a bit
     
  16. Agroshield Member

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    1,390
    Dcal likes this.
  17. GrahamGKD

    GrahamGKD Forum Supporter

    Messages:
    1,270
    Bournemouth UK
    Good idea - you reminded me that I have an old Makita drill in the attic (kept for spares since it was replaced with the same model) - I dug it out but unfortunately the grommet is way too big. I think the difference is that the drill has a separate cable clamp and then a 'loose' strain relief grommet just to ease the flexing of the cable where it comes out of the tool. In the case of my ancient soldering irons the grommet also serves as the cable clamp.
     
  18. Agroshield Member

    Messages:
    1,390
    Glue the cable into the grommet with contact adhesive. If there is room, use a tight cable tie where the cable exits the grommet inside the iron. Make a wall knot with the three cores before connecting to the terminals.
     
  19. cr500dom Member

    Messages:
    369
    Norfolk
    sugru is what you need
    form your own cable strain relief
     
  20. GrahamGKD

    GrahamGKD Forum Supporter

    Messages:
    1,270
    Bournemouth UK
    Well, I asked thegrommetcompany for a few samples - didn't really expect anything but they turned up this afternoon so both of my irons now have new plugs and leads fitted - lovely job.

    Thanks for all the suggestions - that sugru looks interesting.
     
    ukracer and Seadog like this.
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