Official Luthiers Forum!

Owned and operated by Lance Kragenbrink
It is currently Wed May 07, 2025 2:54 pm


All times are UTC - 5 hours


Forum rules


Be nice, no cussin and enjoy!




Post new topic Reply to topic  [ 12 posts ] 
Author Message
 Post subject: Little Dipper glue pot
PostPosted: Sat May 03, 2014 10:35 am 
Offline
Cocobolo
Cocobolo
User avatar

Joined: Thu May 06, 2010 2:03 am
Posts: 121
First name: Zac
Last Name: Stout
City: Floyd
State: VA
Zip/Postal Code: 24091
Country: United States
Focus: Build
Status: Amateur
I just bought a CrockPot Little Dipper for use as a glue pot, and so far in my testing, it is heating the water to about 180 degreesF. It was my understanding that these run in the 140-150F range that we need for hide glue. Is there any way to modify it to run a little cooler? I've been putting off gluing my braces until I got everything set up for hide glue, and I'd really hate to have to send this thing back and hunt down another glue pot. As always, any advice is appreciated.

Thanks,

Zac


Top
 Profile  
 
PostPosted: Sat May 03, 2014 11:11 am 
Offline
Brazilian Rosewood
Brazilian Rosewood
User avatar

Joined: Thu Jan 06, 2011 6:08 pm
Posts: 2712
First name: ernest
Last Name: kleinman
City: lee's summit
State: mo
Zip/Postal Code: 64081
Country: usa
Focus: Build
Status: Professional
Don/t know if this helps . I have an old small crock pot from the 70/s or 80/s ? they called it a baby bottle warmer that I use for heating up HHG. I use a candy glue thermometer to measure . I Dont measure the water bath? try adding more water to the water bath to cool .I also keep my DIY wood lid off .I measure with the thermometer inside the glue pot .between 135-150 F seems to work .Heating up your work . when air temp is below 65 deg F Gives more open time.


Top
 Profile  
 
PostPosted: Sat May 03, 2014 11:36 am 
Offline
Contributing Member
Contributing Member

Joined: Tue Jan 29, 2008 11:14 am
Posts: 819
First name: Tim
Last Name: Lynch
City: Santa Cruz
Zip/Postal Code: 95060
Country: United States
Focus: Build
Status: Amateur
This may not be the answer you are looking for but
I am using a Rival Hot Pot Express. It has a rheostat and it hits and holds 140-150 at the #2 setting.
The cost was about $15, they do go on sale and it is working 5 years strong. May cost you more than that to modify what you have.
Good Luck
Tim


Top
 Profile  
 
PostPosted: Sat May 03, 2014 11:47 am 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Fri Jul 10, 2009 4:44 am
Posts: 5555
First name: colin
Last Name: north
Country: Scotland.
Focus: Build
Status: Semi-pro
That's the problem with no adjustability to the water temperature.
Try a mock up with water in a jar inside the Little Dipper measuring the temperature in the jar. Mine runs about 5 degrees below water bath temperature.
Leaving the lid off will just evaporate the water, the temperature controller will tend to heat to the same temperature.
Oh, and check your thermometer(s) are reading correctly. Try boiling water for 212 degrees F.

_________________
The name catgut is confusing. There are two explanations for the mix up.

Catgut is an abbreviation of the word cattle gut. Gut strings are made from sheep or goat intestines, in the past even from horse, mule or donkey intestines.

Otherwise it could be from the word kitgut or kitstring. Kit meant fiddle, not kitten.


Top
 Profile  
 
PostPosted: Sat May 03, 2014 1:02 pm 
Offline
Cocobolo
Cocobolo
User avatar

Joined: Thu May 06, 2010 2:03 am
Posts: 121
First name: Zac
Last Name: Stout
City: Floyd
State: VA
Zip/Postal Code: 24091
Country: United States
Focus: Build
Status: Amateur
So far, I've only measured the temp of water in the pot. I've just mixed a small batch of glue in a plastic squeeze bottle and will temp the actual glue once the water has heated up.

Good advice on checking the thermometer, Colin. I have a very nice Comark C22 that I picked up in one of the kitchens I worked in, and never even thought to check the accuracy. Sure enough, I'm only getting a reading of 209F in boiling water.


Top
 Profile  
 
PostPosted: Sat May 03, 2014 1:21 pm 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Tue Mar 01, 2011 1:32 pm
Posts: 3470
First name: Alex
Last Name: Kleon
City: Whitby
State: Ontario
Zip/Postal Code: L1N8X2
Country: Canada
Focus: Build
Status: Amateur
Would a router speed control work? If you have one, it might be worth trying.

Alex

_________________
"Indecision is the key to flexibility" .... Bumper sticker


Top
 Profile  
 
PostPosted: Sat May 03, 2014 1:25 pm 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Fri Jul 10, 2009 4:44 am
Posts: 5555
First name: colin
Last Name: north
Country: Scotland.
Focus: Build
Status: Semi-pro
Alex Kleon wrote:
Would a router speed control work? If you have one, it might be worth trying.

Alex

Definitely.

_________________
The name catgut is confusing. There are two explanations for the mix up.

Catgut is an abbreviation of the word cattle gut. Gut strings are made from sheep or goat intestines, in the past even from horse, mule or donkey intestines.

Otherwise it could be from the word kitgut or kitstring. Kit meant fiddle, not kitten.


Top
 Profile  
 
PostPosted: Sat May 03, 2014 2:14 pm 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Fri Jan 22, 2010 9:59 pm
Posts: 3613
First name: Dennis
Last Name: Kincheloe
City: Kansas City
State: MO
Country: USA
Focus: Build
Status: Amateur
Colin North wrote:
Leaving the lid off will just evaporate the water, the temperature controller will tend to heat to the same temperature.
Oh, and check your thermometer(s) are reading correctly. Try boiling water for 212 degrees F.

Not so with the little dipper. I don't think it has a temperature control at all. Just a heating element that coincidentally keeps the water around 140-150F if the lid is off. It gets much hotter with the lid on. I do have to add more water to mine every few hours, but most of the time I don't have the glue out for that long anyway.


Top
 Profile  
 
PostPosted: Sat May 03, 2014 2:22 pm 
Offline
Koa
Koa

Joined: Sat Mar 01, 2008 2:44 pm
Posts: 692
Seems high, my Little Dipper without a lid maintains 140 to 145 degrees. Must be defective.

Chuck

_________________
_________________


Top
 Profile  
 
PostPosted: Sat May 03, 2014 2:33 pm 
Offline
Koa
Koa

Joined: Wed Aug 22, 2007 11:58 am
Posts: 1667
It will get too hot if you keep it covered. Leave it open, and it should be no more than 140-145...


Top
 Profile  
 
PostPosted: Sat May 03, 2014 3:29 pm 
Offline
Old Growth Brazilian Rosewood
Old Growth Brazilian Rosewood
User avatar

Joined: Fri Nov 02, 2007 9:49 am
Posts: 13552
Location: Ann Arbor, Michigan
First name: Hesh
Last Name: Breakstone
City: Ann Arbor
State: Michigan
Country: United States
Status: Professional
Mario P. turned us on to these some 8 years ago or so and I ran out and bought one right away. Unfortunately the one that I purchased sucked and was also way too hot (uncovered) so I went back to my trusty Rival not-so-hot-plastic-pot.

I remember taking mine, Little Dipper, apart looking for a rheostat or some clever way to knock the heat down but to no avail.

Listen to what Mario says about HHG temp, it's important to not let it get over 145F. Mario is also the master of working with HHG for more difficult applications as well such as his very cool video about using HHG to attach the plates to the rim.

Anyway my Little Dipper was relegated to making baked potatoes.... I love baked potatoes.... :D


Top
 Profile  
 
PostPosted: Sat May 03, 2014 7:03 pm 
Offline
Cocobolo
Cocobolo
User avatar

Joined: Thu May 06, 2010 2:03 am
Posts: 121
First name: Zac
Last Name: Stout
City: Floyd
State: VA
Zip/Postal Code: 24091
Country: United States
Focus: Build
Status: Amateur
As Mario and Dennis and Chuck have pointed out, and as I discovered for myself today, leaving the lid off gives the desired temperature results. Thanks everyone for your responses, now it's time for me to go practice using the glue before I dive into the bracing!


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 12 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: jfrench and 50 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