Thanks: 
Likes: 
Needs Pictures: 
Picture(s) thanks:
Results 1 to 6 of 6
Thread: One finished optical centrepunch
-
10th April 2015, 07:02 PM #1
SENIOR MEMBER
- Join Date
- Feb 2015
- Location
- Oz
- Posts
- 615
One finished optical centrepunch
This is the finished optical centrepunch. I started from scratch again and made the body from brass, the acrylic lens from some larger 12mm rod I had and the punch from a larger diameter pin punch I shortened and turned down on the lathe.
I turned the acrylic rod down to 11mm on one end and polished both the turned down section and the base bore so the lens wouldn't get scratched.
I did try out a convex lens but with the larger 12mm rod it seemed superfluous so I just turned both ends flat again, polished them and scribed cross hairs on the bottom and a circle at top.
This one works really well: easy to see and very accurate, very pleased with this one
The other, I'll use for experimenting with LEDs. But first back to the grinder!
-
10th April 2015 07:02 PM # ADSGoogle Adsense Advertisement
- Join Date
- Always
- Location
- Advertising world
- Posts
- Many
-
11th April 2015, 12:15 AM #2
SENIOR MEMBER
- Join Date
- Oct 2008
- Location
- N.W.Tasmania
- Posts
- 703
Sacc51, That looks a great job, thanks for sharing,
Rob.
-
11th April 2015, 05:35 AM #3
Golden Member
- Join Date
- Sep 2012
- Location
- Yorkshire UK
- Posts
- 733
Hey Sacc51,
That looks really nice ! Much much better that the mangy effort I tried to make. If you don't mind I'll copy yours
A quick sketch of the dimensions would be nice. 
Best Regards:
BaronJ.
-
11th April 2015, 09:02 AM #4
SENIOR MEMBER
- Join Date
- Feb 2015
- Location
- Oz
- Posts
- 615
Graham Collins' dimensions.
Graham Collins posted some dimensions in my other post, they're pretty similar, mine only differs on the bottom section a little.
-
11th April 2015, 08:12 PM #5
Golden Member
- Join Date
- Sep 2012
- Location
- Yorkshire UK
- Posts
- 733
Ah right, I didn't spot that there were two posts
Originally Posted by sacc51
Thanks.
Best Regards:
BaronJ.
-
12th April 2015, 09:50 AM #6
Senior Member
- Join Date
- Jun 2011
- Location
- gold coast
- Posts
- 142
Sacc51--- That looks like a very well made and useful instrument/tool.
After seeing my long sighted mates struggling with clip on reading glasses to thread a #16 dry fly onto a fly fishing leader, I can understand the problem.
Being myopic, all I have to do is look over my glasses and put my nose 100mm away from the work while I position the centre punch--but that's another story.
I think it's a very cool make.
regards
Brian
Similar Threads
-
Optical centrepunch
By sacc51 in forum METALWORK FORUMReplies: 19Last Post: 10th April 2015, 10:38 AM -
Optical Pyrometer
By Stustoys in forum METALWORK FORUMReplies: 12Last Post: 20th September 2013, 09:36 PM -
Optical comparator
By Stustoys in forum METALWORK FORUMReplies: 2Last Post: 26th July 2012, 03:38 PM -
Optical flats.
By SC_RUFCTR in forum METALWORK FORUMReplies: 43Last Post: 17th March 2012, 11:17 PM -
Optical tricks
By Kev Y. in forum WOODIES JOKESReplies: 12Last Post: 7th December 2004, 05:52 PM
