Jump to content

Recommended Posts



I was cleaning my work table and placing items in their proper areas.

I have four metallic rulers, both showing the metric and imperial units.

By pure curiosity I placed the shortest one,  15.24cm  - 6" next to my 30.48cm  - 12" and my two 45.72cm  -18" and found differences.

None measured as the other.

The difference is so slight, but could probably cause error when mixed.

Now I marked the 15.24cm and 45.72cm that are almost identical.

The other two to be donated to friends 3rd grader school kids.


A high quality digital caliper needs to be purchased. 


Please, visit our Facebook page!




Per aka Dr. Per@Therapy for Shipaholics 

Finished: T37, BB Marie Jeanne - located on a shelf in Sweden, 18th Century Longboat, Winchelsea Capstan

Current: America by Constructo, Solö Ruff, USS Syren by MS, Bluenose by MS

Viking funeral: Harley almost a Harvey

Nautical Research Guild Member - 'Taint a hobby if you gotta hurry

Link to comment
Share on other sites

Good to know.  I also know what I am doing when I get home from work tonight!  I have about 6 different rulers, thanks!



"I drank what?" - Socrates


Current Builds:  


Finished Builds: 


Future Builds:        

  • Mamoli Golden Hind
  • Mamoli Black Prince
  • AL Swift


Link to comment
Share on other sites

Sinan, but first check the caliper is accurate first ;)  Mine were out and I have just invested in a "Certifed" digital readout Caliper.


Per, the other trick is to check them for straightness.  I believe the check is done by using one edge to draw a line then flip the ule vertically (same edge but running the other way) and draw another line over that and see if they are coincident - repeat for the other edge.  I use a square or solid base to rest the ruler on but you need to be sure the bases (short edges) of the ruler are square also.  There used to be a good write-up on MSW 1 ... another lost  .... :)





If at first you do not suceed, try, and then try again!
Current build: HMCSS Victoria (Scratch)

Next build: HMAS Vampire (3D printed resin, scratch 1:350)

Built:          Battle Station (Scratch) and HM Bark Endeavour 1768 (kit 1:64)

Link to comment
Share on other sites

there's an old story somewhere about the buyer of a ship slipping into the shipyard one night and replacing the shipbuilders measuring stick with one that was stretched by 10 percent. Of course he ended up getting a ship 10 percent bigger!

Pat M.

Matthews Model Marine

Model FUNCTION as well as FORM.

Get your boats wet!

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Create New...