Official Luthiers Forum!

Owned and operated by Lance Kragenbrink
It is currently Thu Aug 07, 2025 5:54 am


All times are UTC - 5 hours


Forum rules


Be nice, no cussin and enjoy!




Post new topic Reply to topic  [ 13 posts ] 
Author Message
 Post subject: Pipetts
PostPosted: Wed Apr 13, 2011 12:15 pm 
A friend gave me this adjustable pipettor to apply CA glue, it works far
better than any pipette I've ever used. You can dial in the amount of CA you
want and apply it with the precision of a Surgeon. Here's a link to one I
found on Amazon
http://www.amazon.com/Sper-Scientific-A ... B001EUET48

Scott


You do not have the required permissions to view the files attached to this post.


Top
  
 
 Post subject: Re: Pipetts
PostPosted: Thu Apr 14, 2011 2:21 pm 
Offline
Contributing Member
Contributing Member

Joined: Tue Nov 21, 2006 4:02 pm
Posts: 801
Location: United States
First name: Gene
Last Name: Zierdt
City: Sebastopol
State: CA
Zip/Postal Code: 95472
Country: USA
Focus: Build
Status: Amateur
Here's a great tut from Todd about how to "micro-size" the pipette applicator
tip. Since seeing this, I bought the 1000 pipette box, and keep finding new
uses for them all the time.

http://www.luthiersforum.com/forum/viewtopic.php?f=10117&t=30317

_________________
Gene

Politicians and diapers must be changed often, and for the same reason- Mark Twain


Top
 Profile  
 
 Post subject: Re: Pipetts
PostPosted: Fri Apr 15, 2011 7:30 pm 
Offline
Koa
Koa
User avatar

Joined: Sat Jan 08, 2005 4:19 am
Posts: 1534
Location: United States
First name: Nelson
Last Name: Palen
Scott, I'm always looking for better ways to apply CA without tip clogging.
How are you finding the adjustable pipette as far as clogging is concerned?
I try to purge some air prior to applying with a regular pipette so it will draw the CA back out of the stem and into the reservoir.
This helps to minimize clogging but don't always remember to do it.
Would like to hear more about your pippetor. How is the adjustment graduated etc.
Thanks
Nelson


Top
 Profile  
 
 Post subject: Re: Pipetts
PostPosted: Tue Apr 19, 2011 7:14 am 
Sorry guys, I didn't see the reply's.

The guy who gave me this uses them for DNA analysis etc, the measurement is so fine I can pick up a micro drop (that wasn't his term) or fill half the tube. I'm not sure about the one in the Amazon link as far as that goes. After each use I pop the hard plastic tip off and I use some canned air to clear it out, if it gets clogged I clear it with a pin, cut it down or both. The thing I like most about it is it's very rigid, no flex at all.

Scott


Top
  
 
 Post subject: Re: Pipetts
PostPosted: Tue Apr 19, 2011 7:22 am 
Offline
Cocobolo
Cocobolo

Joined: Sun Jun 21, 2009 6:14 pm
Posts: 439
First name: Mike
Last Name: Imbler
City: Wichita
State: KS
Zip/Postal Code: 67204
Country: usa
Focus: Build
Scott, I notice these come in different volume capacity ranges - do you know what size yours is, or the make and model so I could look it up?
thanks, Mike


Top
 Profile  
 
 Post subject: Re: Pipetts
PostPosted: Tue Apr 19, 2011 12:22 pm 
Offline
Koa
Koa

Joined: Fri Mar 31, 2006 4:54 pm
Posts: 713
Location: United States
First name: nick
Last Name: fullerton
City: Vallejo
State: ca
Zip/Postal Code: 94590
Country: usa
Focus: Build
Status: Amateur
Rather pricey. Might be nice to find one used on ebay or something.

_________________
"Preoccupation with an effect gives it power and enhances the error"
from "Your Owner's Manual" by Burt Hotchkiss.


Top
 Profile  
 
 Post subject: Re: Pipetts
PostPosted: Tue Apr 19, 2011 12:31 pm 
Offline
Mahogany
Mahogany

Joined: Tue Dec 22, 2009 5:40 am
Posts: 40
First name: maarten
Last Name: van guyse
City: heusden-zolder
Zip/Postal Code: 3550
Country: belgium
Focus: Build
Status: Amateur
if you're looking for a really good micro-pipet, you might want to check out Gilson. They are the best I've used so far. However, I don't think they will warrant the pipeting of CA with it. I could imagine the CA fumes damaging the inside of a pipet. Not to mentioon if by accident you get any CA in the pipet shaft. Then it's game over.
If you're looking for the right volume range: I'd say a 20-200µl pipet would be best suited. Graduation is normally per 1µl.
Clogging of the tip is no issue, since the pipet tips are discarded after each use. You might want to consider using filter-tips, to avoid accidentally getting fluid in the mechanism.

All in all, however, I would say this type of pipet is overkill for this application. way overkill. and they're not exactly cheap either.
Filippo's solution is a better way to go.


Top
 Profile  
 
 Post subject: Re: Pipetts
PostPosted: Tue Apr 19, 2011 12:52 pm 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Mon Mar 19, 2007 7:05 am
Posts: 9191
Location: United States
First name: Waddy
Last Name: Thomson
City: Charlotte
State: NC
Focus: Build
Status: Semi-pro
I'm no expert, and don't use a lot of CA, but I bought a pack of the pipettes from LMII, and when I put CA in them, it stays useable until I use it up. So far, I've never had it dry up in the tube or in the pipette, and I leave it in there for weeks at a time without being used.

_________________
Waddy

Photobucket Build Album Library

Sound Clips of most of my guitars


Top
 Profile  
 
 Post subject: Re: Pipetts
PostPosted: Tue Apr 19, 2011 2:38 pm 
Offline
Koa
Koa
User avatar

Joined: Sat Jan 08, 2005 4:19 am
Posts: 1534
Location: United States
First name: Nelson
Last Name: Palen
Waddy, how do you make that happen???
Seriously, I've never left CA in the pipette tube for more than a few days without clogging.
Special type of CA? Perhaps you're using a procedure to clear the tube after each use?
Any advice appreciated.
Nelson

edit: I actually have better luck with the little replaceable "whip tips" attached directly to the CA bottle.
It's handy to not have to be filling pipettes and they have a small tube diameter to allow "micro dispensing".
The tube is long enough so that it can be shortened a few times if it does clog.


Top
 Profile  
 
 Post subject: Re: Pipetts
PostPosted: Tue Apr 19, 2011 7:13 pm 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Mon Mar 19, 2007 7:05 am
Posts: 9191
Location: United States
First name: Waddy
Last Name: Thomson
City: Charlotte
State: NC
Focus: Build
Status: Semi-pro
Hot Stuff thin, no tricks. I used some tonight that has been in the pipette for over 2 weeks.

_________________
Waddy

Photobucket Build Album Library

Sound Clips of most of my guitars


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 13 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: Bing [Bot], ChuckB and 9 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
Powered by phpBB® Forum Software © phpBB Group
phpBB customization services by 2by2host.com