Thanks: 0
Likes: 0
Needs Pictures: 0
Picture(s) thanks: 0
Results 1 to 1 of 1
Thread: Small hole bore gauge !
-
24th June 2020, 12:00 AM #1Most Valued Member
- Join Date
- Aug 2015
- Posts
- 4,433
Small hole bore gauge !
Hi Guys,
I've been considering the best way to measure small diameter bores. I know about gauge pins, but I was thinking bores from about 12 mm up to say 25 or 30 mm. Once I've got to 25 mm I can use my M&W inside callipers. But I've nothing that will fit into that gap in sizes.
I've done a drawing of a proposed device that I can use to accurately measure a small bore !
Minature Bore Gauge.png
I have a pair of M&W 3" inch dividers that have very small diameter legs on them, so I thought that it might be a candidate for making a fitting that went onto the legs and be able to be inserted into a bore so that I could measure it using the transfer method, like I do with the external callipers.
I've a number of bits of scrap brass material that I can play around with.
I present the idea here in the hope that it will prove useful and of interest, and maybe collect some thoughts !
Attached Images
- Minature Bore Gauge.png (77.9 KB)
Read the full thread at metalworkforums.com...
-
24th June 2020 12:00 AM # ADSGoogle Adsense Advertisement
- Join Date
- Always
- Posts
- Many
Similar Threads
-
Machining Advise: Small Production Run in PVC 21mm +/- 0.05mm Bore
By Jarh73 in forum METALWORK FORUMReplies: 5Last Post: 13th June 2012, 12:46 AM -
Small marking gauge
By Vernonv in forum HOMEMADE TOOLS AND JIGS ETC.Replies: 4Last Post: 19th April 2009, 09:04 AM -
Drilling large hole over small hole or vice-versa
By niki in forum HOMEMADE TOOLS AND JIGS ETC.Replies: 28Last Post: 2nd November 2007, 08:32 PM