|
|
|
|
| Author |
|
|
Back in the saddle again
Join Date: Oct 2001
Location: Central TX west of Houston
Posts: 55,996
|
Please explain this weld fillet gage to me
I'm curious why some of the things are 2 small semi-circles and some are one single semi-circle.
For instance in this photo, you see one end has what appears to be a huge radius and says '7/8"' while the opposite end of the same leaf has 2 partial curves that say '1"'  another view  And the back so you can see that some are one 90º arc while others are 2 smaller (60º?) arcs.  I would expect all of the measurements to be the same, either 1 90º arc or 2 smaller arcs instead of a mix and match.
__________________
Steve '08 Boxster RS60 Spyder #0099/1960 - never named a car before, but this is Charlotte. '88 targa  SOLD 2004 - gone but not forgotten
|
||
09-28-2025, 06:17 AM
|
|
|
Navin Johnson
Join Date: Mar 2002
Location: Wantagh, NY
Posts: 8,786
|
It can be used to measure concave or convex filet weld profiles.. Its really a comparator.. you place it flat on the horizontal and vertical surfaces, and check weld leg length, and throat..
__________________
Don't feed the trolls. Don't quote the trolls  http://www.southshoreperformanceny.com '69 911 GT-5 '75 914 GT-3 and others |
||
|
09-28-2025, 06:40 AM
|
|
|
Back in the saddle again
Join Date: Oct 2001
Location: Central TX west of Houston
Posts: 55,996
|
Quote:
 
__________________
Steve '08 Boxster RS60 Spyder #0099/1960 - never named a car before, but this is Charlotte. '88 targa SOLD 2004 - gone but not forgotten
|
||
|
09-28-2025, 08:22 AM
|
|
|
Navin Johnson
Join Date: Mar 2002
Location: Wantagh, NY
Posts: 8,786
|
Yes one end measures the leg, the other the throat...leaves room for interpolation.. The video is a pretty good demonstration of their use... The last pic you attached you can check throat on a 1" filet, and leg on a 7/8" filet.
These gauges are only suitable for filet welds...other gauges are available are used for butt welds etc.. With this you can check leg and throat of 5/8 or 1/4" filets  Nomenclature 
__________________
Don't feed the trolls. Don't quote the trolls http://www.southshoreperformanceny.com '69 911 GT-5 '75 914 GT-3 and others |
||
|
09-28-2025, 08:39 AM
|
|
|
Navin Johnson
Join Date: Mar 2002
Location: Wantagh, NY
Posts: 8,786
|
Also I think when they were developing the tool, the amount of real estate was fixed so
some of the larger sizes are mixed and matched..
__________________
Don't feed the trolls. Don't quote the trolls http://www.southshoreperformanceny.com '69 911 GT-5 '75 914 GT-3 and others |
||
|
09-28-2025, 08:45 AM
|
|
|
Back in the saddle again
Join Date: Oct 2001
Location: Central TX west of Houston
Posts: 55,996
|
Thanks tons for the great explanation and the video, Tim. I hadn't watched the video yet, and you were right, that and your subsequent posts cleared it right up!
__________________
Steve '08 Boxster RS60 Spyder #0099/1960 - never named a car before, but this is Charlotte. '88 targa SOLD 2004 - gone but not forgotten
|
||
|
09-28-2025, 08:49 AM
|
|
|
|
Navin Johnson
Join Date: Mar 2002
Location: Wantagh, NY
Posts: 8,786
|
II retired 4 years ago, and stashed all my equipment and odd and ends tools away in a closet...
I just pulled out my go-bag with weld test equip.. Filet gauge and multi gauge...I probably got my filet gauge around 1985, the other in the '90s 
__________________
Don't feed the trolls. Don't quote the trolls http://www.southshoreperformanceny.com '69 911 GT-5 '75 914 GT-3 and others |
||
|
09-28-2025, 08:50 AM
|
|
|
Navin Johnson
Join Date: Mar 2002
Location: Wantagh, NY
Posts: 8,786
|
The multi gauge allows measurements of all types of weld, and give direct measurements, instead of allowing interpolation
  
__________________
Don't feed the trolls. Don't quote the trolls http://www.southshoreperformanceny.com '69 911 GT-5 '75 914 GT-3 and others |
||
|
09-28-2025, 08:52 AM
|
|
|
Back in the saddle again
Join Date: Oct 2001
Location: Central TX west of Houston
Posts: 55,996
|
Quote:
__________________
Steve '08 Boxster RS60 Spyder #0099/1960 - never named a car before, but this is Charlotte. '88 targa SOLD 2004 - gone but not forgotten
|
||
|
09-28-2025, 09:31 AM
|
|
