Thread: Who can cut mark out and accurately cut with a hacksaw?

I have started one of those ages ago. I have yet to get some silver steel for the punch.
I guess I'd better finish it while I can still find my way to the lathe.

Grahame

Originally Posted by Grahame Collins

I have started one of those ages ago. I have yet to get some silver steel for the punch.
I guess I'd better finish it while I can still find my way to the lathe.

Grahame

Hi Grahame,
what size silver steel are you after.
I still have some here left over.

Phil

Originally Posted by Steamwhisperer

Hi Grahame,
what size silver steel are you after.
I still have some here left over.

Phil

hi Phil,
Your offer is very kind.
The Lucite rod I bought for the job is 13mm ,so guess that size or a big bigger would be just fine.
I have the brass for the base. I will PM you tonite.

Thanks Grahame

Originally Posted by DSEL74

I absolutely adore these really old hacksaws. Referred to as lancashire pattern hacksaws. They used to come in 2" increments I think it may have been 1". They went out of favour when the adjustable spine version came in as you only needed one frame for all blade sizes vs a separate saw for each blade.

One of my hacksaws is very similar to the third one down on the right of this picture. It originally belonged to my Granddad so its getting on a bit. The blade is quite a bit wider than the blades around nowadays. My normal use saw is a "Bacho" with a plastic coated frame.

Although I was taught to use a saw properly I do tend to be lazy and use my chop saw particularly if I want an accurate cut...

Originally Posted by Grahame Collins

hi Phil,
Your offer is very kind.
The Lucite rod I bought for the job is 13mm ,so guess that size or a big bigger would be just fine.
I have the brass for the base. I will PM you tonite.

Thanks Grahame

Hi Grahame,
are you going to turn the shank of the lucite down at all and leave a larger head?
If so, then you may need a smaller diameter piece of silver steel. I found I didn't need such a large head on the punch but the bigger head on the magnifier worked well.

Phil
IMG_2535.jpg IMG_2536.jpg

My apologies Phil ,I completely forgot about PM -ing you.


I had not considered it, but now will as it obviously works. Its been that long it getting a roun- to- it.The lucite has sat on the desk near the computer for 18 months.

Thank you for the pics - explains it all in a glance.

I suppose I have had the mind set of the shaft being the same as the lucite-.
The original diameter of your lucite- was it around 12-13mm >.That would make the silver steel shaft half of that. I understand that this is just to "pop" the mark observed and centered by the optical bit.
Some of course not be able to separate "pop" from wallop.

Thanks

Grahame

Originally Posted by Grahame Collins

My apologies Phil ,I completely forgot about PM -ing you.


I had not considered it, but now will as it obviously works. Its been that long it getting a roun- to- it.The lucite has sat on the desk near the computer for 18 months.

Thank you for the pics - explains it all in a glance.

I suppose I have had the mind set of the shaft being the same as the lucite-.
The original diameter of your lucite- was it around 12-13mm >.That would make the silver steel shaft half of that. I understand that this is just to "pop" the mark observed and centered by the optical bit.
Some of course not be able to separate "pop" from wallop.

Thanks

Grahame

No worries Grahame, at least I'm not the only one that forgets.
Mine is 3/4" oops, about 19mm and if I remember correctly the shank is about 10 mm so the ratios you mention are about right.
I use the smallest ball pein I have and as you say, it is just a 'pop', and 'then' you centre punch it.

Phil

Originally Posted by Steamwhisperer

No worries Grahame, at least I'm not the only one that forgets.
Mine is 3/4" oops, about 19mm and if I remember correctly the shank is about 10 mm so the ratios you mention are about right.
I use the smallest ball pein I have and as you say, it is just a 'pop', and 'then' you centre punch it.

Phil

Phil
So the 10mm is 3/8" or .375" less a thou for clearance, after reaming to .375" dia?
All the best for Christmas, & thanks for your valuable input through the year.
regards
Bruce

Originally Posted by Abratool

Phil
So the 10mm is 3/8" or .375" less a thou for clearance, after reaming to .375" dia?
All the best for Christmas, & thanks for your valuable input through the year.
regards
Bruce

Hi Bruce,
I used a piece of 3/8" silver steel and machined it down to 11/32" minus 0.001", I did the same on the shank of the optic.
I was able to do this as I happen to have a 11/32" reamer which worked perfectly.

Phil