Author Topic: Centre finder punch part one  (Read 11732 times)

Offline doubleboost

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Centre finder punch part one
« on: December 30, 2013, 03:19:05 PM »


John

Offline micktoon

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Re: Centre finder punch part one
« Reply #1 on: December 30, 2013, 05:29:46 PM »
Hi John , good video as usual , it looks a very handy little gadget , I could have done with one a thousand times that I can think of .................... one more item for the to do list  :palm:

  Cheers Mick.

Offline paulmo101

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Re: Centre finder punch part one
« Reply #2 on: December 31, 2013, 12:31:04 PM »
Hi John

Great video as usual - what a great little device very simple design but really useful.  Added to my to do projects list.

Thanks
Paul

Offline doubleboost

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Re: Centre finder punch part one
« Reply #3 on: December 31, 2013, 12:49:34 PM »

Offline Chuck in E. TN

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Re: Centre finder punch part one
« Reply #4 on: December 31, 2013, 01:19:24 PM »
Another great video, John. I especially liked the tempering bit and the demo of different tempering levels. Thanks for taking the time to do these videos.
Chuck
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Offline doubleboost

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Re: Centre finder punch part one
« Reply #5 on: January 05, 2014, 04:10:08 PM »

Offline doubleboost

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Re: Centre finder punch part one
« Reply #6 on: January 05, 2014, 04:12:03 PM »

Offline CrazyModder

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Re: Centre finder punch part one
« Reply #7 on: January 06, 2014, 12:04:05 PM »
Yes, a big Cheers from me as well. I love your videos. Not being a native speaker, your voice is very refreshing when I usually only hear "high english" newscasting or english movies.  :clap: And your contents are also extremely nice, of course! I also hope your mobile goes off more often during a video!  :drool:

Offline krv3000

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Re: Centre finder punch part one
« Reply #8 on: January 06, 2014, 02:25:11 PM »
brill work john well dun

Offline Fredbare

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Re: Centre finder punch part one
« Reply #9 on: January 06, 2014, 05:10:20 PM »
Thanks John, for taking the mystery out of tempering, I always get something out of your video's

John

Offline S. Heslop

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Re: Centre finder punch part one
« Reply #10 on: January 07, 2014, 12:39:45 PM »
I bought myself some silver steel to have a go at making a punch. The sharpened drill bit I was using couldn't hold up to steel.

Might be easier to buy one but you'll all understand.

Offline svk

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Re: Centre finder punch part one
« Reply #11 on: January 07, 2014, 03:12:37 PM »
Nice work John :nrocks:

Offline ksor

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Re: Centre finder punch part one
« Reply #12 on: February 17, 2014, 11:41:36 AM »
In fact you CAN make it so that it can find

1/2, 1/3, 1/4, 1/5

of the distance across a flat bar, you just have to make the pin a Little special -look here:

http://kelds.weebly.com/laeligre-til-opmaeligrkning.html
Best regards
KSor, Denmark
Skype name: keldsor

Offline philf

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Re: Centre finder punch part one
« Reply #13 on: February 17, 2014, 12:49:38 PM »
Hi John,

If you look at Ksor's pictures you'll see that his location pins are halved such that the centre lines correspond with the edge of the bar.

If you use round location pins only the centre line hole will work accurately as this is independent of pin diameter. If you want to divide by e.g. 4 on different size bars it's not reliable. The smaller the pins you use the more accurate the division.

The following two pictures illustrate the problem:





You'll have to tell people that the extra holes are to lighten it!

Cheers.

Phil.
« Last Edit: July 13, 2017, 01:32:24 PM by philf »
Phil Fern
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