To make a lid, you also have to account for the thread on the screw part.
Need to measure the thread spacing and size of that.
https://www.paramountglobal.com/knowledge/jar-neck-thread-finish/

If it really were a mason jar, they are standard, assuming it's a name
brand jar, and stores from Walmart to Walgreens to Dollar General will have
mason jar lids in the 2 sizes.

-Wilhelmina Randtke

On Wed, Apr 3, 2024 at 7:07 PM McDonald, Stephen <[log in to unmask]>
wrote:

> Ah, but I see that the patron isn't looking for a mason jar lid, you are
> just using that as the model to produce the size lid they want. My
> apologies.
>
>                                         Steve McDonald
>                                         [log in to unmask]
>
>
> > -----Original Message-----
> > From: Code for Libraries <[log in to unmask]> On Behalf Of charles
> > meyer
> > Sent: Wednesday, April 3, 2024 6:06 PM
> > To: [log in to unmask]
> > Subject: [External] [CODE4LIB] Modifying Mason Jar Lid
> >
> > My esteemed listmates,
> >
> > I found  a mason jar lid on Thngiverse.
> >
> > https://www.thingiverse.com/thing:3468220
> >
> > A patron needs these specs
> >
> > Top of lid:  i ¾ inches  O.D.
> >
> > Bottom of lid: 113/16 inches  O.D.
> >
> > Depth of lid:  9/16  inches
> >
> > But, Tinkercad doesn't measure in inches and I'm not even sure Timkercads
> > could achieve that kind of specificity?
> >
> > Meshmixer is an amazing prgmnra that I haven't mastered yet.
> >
> > What free program would you use to create this with such detail?
> >
> > Thank you,
> >
> > Charles.
> >
> > Caution: This message originated from outside of the Tufts University
> > organization. Please exercise caution when clicking links or opening
> > attachments. When in doubt, email the TTS Service Desk at
> > [log in to unmask]<mailto:[log in to unmask]> or call them directly at 617-627-3376.
>
>