Jump to content
Classifieds is broken, please do not submit any new ads ×

Getting The Last Drop Of Ink With A Centrifuge Tube?


Recommended Posts

I've been looking for a way to use the last drops of ink in bottles but other than a syringe I couldn't think of a way, for cartridge pens a syringe is fine but for piston pens I was stuck. I also wanted a safe way to take small amounts of ink out with me so I could refill if necessary without the hassle of carrying syringes etc.

The other day I was watching a science programme on TV and saw the scientists using a centrifuge and putting little cone shaped tubes in the machine, I wondered if you could buy them and found that you there's loads available on ebay.







You can even buy storage boxes for the tubes which hold 100 for under £5




The shape of the tubes makes me think that a pen nib would fit inside and as the tubes are plastic they shouldn't damage a nib, the only problem I can see is that the cones shaped tubes only seem to be available up to 1.5ml which is probably ok for one fill but ideally a capacity of 5ml would be better, having said that the 1.5ml tubes are so cheap(around £10 per 100) that you could just spread the ink into 3 tubes.




I'm wondering if anyone has tried using centrifuge tubes for their ink?

Link to comment
Share on other sites

  • Replies 4
  • Created
  • Last Reply

Top Posters In This Topic

  • andymcc


  • Inkysloth


Popular Days

Top Posters In This Topic

Posted Images

I think most pens woukd struggle to fit into a 1.5 ml cebtrifuge tube - they really are dinky!


5ml sample tubes are probably as small as you want to go, and even they can be a tight fit for some larger sectioned pens.

Instagram @inkysloth
My website http://inkysloth.moonfruit.com/

Link to comment
Share on other sites

Inkysloth: Thanks :thumbup: I've just found a PDF that lists the neck diameter of most 1.5ml tubes as 9.5mm so you're right that most pens would struggle to fit, it's a pity because the shape of the tubes is ideal.

I've seen little sample pots with screw tops on ebay that would probably do the job but like ink bottles they have flat bottoms so there'll always be a little ink that's hard to get.



Just found 50ml tubes on ebay that have a neck diameter of 3cm so they'd be big enough for most pens although 12cm might be a little too deep :unsure:

Edited by andymcc
Link to comment
Share on other sites

There are 5ml sample vials that have a conical base inside, ringed outside with a flat base such that the vial can stand alone - a couple of members on here sell them, I've bought some from Ebay. They're pretty inexpensive, too.

Instagram @inkysloth
My website http://inkysloth.moonfruit.com/

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Most Contributions

    1. amberleadavis
    2. PAKMAN
    3. Ghost Plane
      Ghost Plane
    4. jar
    5. wimg
  • Upcoming Events

  • Blog Comments

    • Matthew TWP
      @Ruaidhri This was an absolutely wonderful bit of writing, and I hope that you're able to maintain the style once all of the medications are out of your system.  Take care and recover quickly!
    • Dr.X
      Very punny daniel
    • danielfalgerho
      These comments make me sad as I sympathise with Ruaidhri, having great difficulties in being taken seriously. Or being taken at all (no off-colors jokes, please!) In spite of overwhelming odds,  Ruaidhri -now I know how to spell it- made a courageous decision and stuck to it. I was diagnosed with a similar growth in a place I will not reveal. Oh, well, if you insist it was Mount Sinai Hospital. But I firmly intend to walk in Ruaidhri's footsteps, if he will let me, on my next visit to Dublin.
    • ParramattaPaul
      Reminds me of the day my associates and I developed a cure for all mankind's ills and mistakenly wrote it down with invisible ink.
    • AnneD
      Was that the end of the Laboratory? Somehow the exactitude created a fully destructive device, as always!
  • Chatbox

    You don't have permission to chat.
    Load More
  • Expiring Soon

    • By benbot517
      51 years and 10 months
    • By benbot517
      51 years and 10 months
    • By benbot517
      51 years and 10 months
    • By Okami
      51 years and 10 months
    • By Okami
      51 years and 10 months
  • Random Adverts

  • Files

  • Today's Birthdays

    1. aspettando
      (44 years old)
    2. Ayaz Ali Laghari
      Ayaz Ali Laghari
      (41 years old)
    3. backwards lefty
      backwards lefty
    4. beagle81080
      (49 years old)
    5. cancoi

  • Create New...