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BTD Forums  /  The GenoType Diet  /  Fool-Proof FINGERPRINTS at Home!
Posted by: joyfulheart, Saturday, April 17, 2010, 3:47pm
Fingerprinting made clean, easy, and Eco-Friendly!

Worked like a charm for me and I have low ridge height and lots of white lines.  (I tried everything else short of having them professionally done)

You will need:
#2 pencil
1 piece of 8.5 x 11" white paper
3/4" wide clear tape

  • On the lower 1/4 of the paper, take a #2 pencil and lay down a patch of graphite.
  • Rub the finger to be printed into the graphite.
  • Tear off a 2.5" piece of tape, fold the top portion back to make it "double-sided" and secure it, sticky-side up on a flat surface.
  • Roll the "dusted" finger tip across the exposed tape.
  • Place the tape on the top part of your paper and label it to identify hand/finger.
  • It helps to take 2 impressions per finger.
  • Repeat for all fingers.
  • Examine prints under a magnifying glass to identify patterns.

Easy clean up!  Inexpensive!  Hard to smear!
Posted by: DenverFoodie, Saturday, April 17, 2010, 4:18pm; Reply: 1
I'm going to give this method a try.  If you still can't read with a magnifying glass I suggest you scan the resulting prints and enlarge them on your computer.
Posted by: Lola, Saturday, April 17, 2010, 5:26pm; Reply: 2
yeah, a few have reported their unique fingerprinting methods using a pencil

thanks for sharing yours! :)

Quoted Text
easy no mess way to do prints. You will need a pencil,  a couple of index cards and some clear
tape.

First use the pencil to make a nice dark patch of lead on one of the index cards. Then rub the
fingertip you want to print in the patch. Take a piece of tape and carefully cover the pad of
your finger, then remove it in one smooth stroke. Press it carefully onto the second index card
(on the blank side). Repeat for the rest of your fingers, adding more lead as needed.


Quoted Text
You can do your prints by running a pencil (big dark spot) on paper and then rubbing your fingers
thru it one at a time. I then do the CSI thingy and used a strip of tape and rolled my sons
prints on it. I used a magnifying glass to check them.
Posted by: DenverFoodie, Saturday, April 17, 2010, 5:44pm; Reply: 3
Quoted from DenverFoodie
I'm going to give this method a try.  If you still can't read with a magnifying glass I suggest you scan the resulting prints and enlarge them on your computer.


So I thought why scan the resulting finger prints?  I scanned the originals.  It takes one scan for the 8 fingers and one for both thumbs.
Be sure to press your digits firmly on the glass and, voila, perfect prints (are they prints at this time?).  The only things you don't get are the white lines, which is why I did this method in the first place because I had so many.
Posted by: Victoria, Saturday, April 17, 2010, 6:16pm; Reply: 4
Great alternative!  
Posted by: Juliette, Tuesday, May 18, 2010, 9:16pm; Reply: 5
This is a fantastic method thanks for sharing.

Quick (possibly dumb) question. Re the loops being ulna or radial (just for my interest) once printed is the loop facing the other way to on your hand ie left hand index finger print points to the right but have I reversed it by sticking the tape down rather than printing in ink?

Sorry if that is very confusing but I can't turn the images in my mind and yes I do have to turn a road map around so that it is facing the way we are going  :B
Posted by: DenverFoodie, Tuesday, May 18, 2010, 9:54pm; Reply: 6
Quoted from Juliette
This is a fantastic method thanks for sharing.

Quick (possibly dumb) question. Re the loops being ulna or radial (just for my interest) once printed is the loop facing the other way to on your hand ie left hand index finger print points to the right but have I reversed it by sticking the tape down rather than printing in ink?

Sorry if that is very confusing but I can't turn the images in my mind and yes I do have to turn a road map around so that it is facing the way we are going  :B


No dumb questions.  Just think of it as pressing your inked fingers down on paper.  You just do all four (eight) at once.  Then do the two thumbs for your second scan.  Be sure to press down firmly so the print flattens out.
The only drawback doing it this way is you don't get a confirmed indication of horizontal white lines.  You can see them but they are not that obvious.

It would be the opposite of using tape for your prints.
Posted by: Juliette, Tuesday, May 18, 2010, 10:22pm; Reply: 7
Thanks Denver but you have confused me more!  I am using the pencil and tape method but I think I have worked out my own question. Yes using tape does reverse the prints as you see them.

I have 8 ulna loop, 1 radial loop (right index) and one whorl.

Guessing that is the prints of an explorer.  I'm still trying to work out if I'm a teacher or Explorer and feel that I am 50/50
Posted by: Frosty, Tuesday, May 18, 2010, 10:58pm; Reply: 8
I had my prints done last year digitally.  Digital prints are fantastic, but what they revealed was dismal. :(
Posted by: PCUK-Positive, Tuesday, May 18, 2010, 11:51pm; Reply: 9
I've just bought a digital microscope gonna have a play with it when it arrives and look at my finger prints. it's got software and all included. for films etc. x400 should be loads shouldn't it?
Posted by: Frosty, Tuesday, May 18, 2010, 11:57pm; Reply: 10
I got one several years ago, like the kind the CSI's use, to look at skin.  I love it!  I can see so much more and can show the client damage to their skin that you can't see with the naked eye  :o  that will eventually surface in a few years.  This way we can work on it now, so it won't surface later.

You are going to have a great new toy.  Prepare to have fun!!!!
Posted by: Lola, Wednesday, May 19, 2010, 5:27am; Reply: 11
PC, you can now open a PI office!!
or FBI ;) no sorry Scotland Yard.....you re all equipped
Posted by: Possum, Wednesday, May 19, 2010, 8:59am; Reply: 12
Quoted from Lola
PC, you can now open a PI office!!
or FBI ;) no sorry Scotland Yard.....you re all equipped
Try Irish Yard :D

Posted by: Cristina, Wednesday, May 19, 2010, 9:18am; Reply: 13
Hopefully those pencils do not contain lead?  ::) ??) The scanner option worked very well for me.  From a very loopy (10) kind of teacher (45%).   ;D  :) :)
Posted by: Juliette, Wednesday, May 19, 2010, 11:26am; Reply: 14
Quoted from Cristina
Hopefully those pencils do not contain lead?  ::) ??) The scanner option worked very well for me.  From a very loopy (10) kind of teacher (45%).   ;D  :) :)


I thought all modern day pencils were graphite.  Are your's all ulna loops?

Posted by: Cristina, Wednesday, May 19, 2010, 7:35pm; Reply: 15
Quoted from Juliette


I thought all modern day pencils were graphite.  Are your's all ulna loops?



You may be right about the graphite.   And, yes, all Ulnar except from my D2 (index fingers) they are both radials.
;D :)


Posted by: tnahowru, Wednesday, May 19, 2010, 7:37pm; Reply: 16
I work at a lab and used a microscope since every time i did it with ink they smeared. ::)
Posted by: Victoria, Wednesday, May 19, 2010, 7:53pm; Reply: 17
Quoted from Juliette
Thanks Denver but you have confused me more!  I am using the pencil and tape method but I think I have worked out my own question. Yes using tape does reverse the prints as you see them.

It only reverses the prints if you flip the tape over and put it, sticky side down.
Joyfulheart's directions call for putting the tape on paper sticky side up.
Posted by: Juliette, Wednesday, May 19, 2010, 7:55pm; Reply: 18
Thanks Victoria that is what I have done.
Posted by: amill, Thursday, May 20, 2010, 9:07pm; Reply: 19

fingerprints are the only easy measurement i had.

I see them clear as day on my fingers, no printing needed!
Posted by: Ekalia, Thursday, May 20, 2010, 9:31pm; Reply: 20
Quoted from amill

fingerprints are the only easy measurement i had.

I see them clear as day on my fingers, no printing needed!


Not so for me, can barely see them on my fingers so I used the pencil and sticky tape method today - lots of white lines but at least I could work out what most were - loops x 6, a couple of whorls and the other two I'm not entirely sure of ??), will check again after I've been doing the BTD for a few months, they might be clearer then  :)
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