By continuing to use this site, you agree to our use of cookies. Find out more
Forum sponsored by:
Forum sponsored by Allendale July 23rd

Hemingway Hacksaw

All Topics | Latest Posts

Search for:  in Thread Title in  
David George 103/02/2019 17:04:46
841 forum posts
292 photos

Looking a very nice piece of work.


Mark Elen 108/02/2019 10:28:18
107 forum posts
179 photos

Hi David,

Many thanks for your kind comments.

I have got a bit more done in the last few days. The con rod is complete, I reamed out the 1/2" hole and bored out the 5/8"



Then I decided to start work on the slide bar retainers. These took a bit of working out how to hold them as the castings were not square. I had to square up one side and make up a set of soft jaws to hold these whilst I worked on them.

The bosses for the screws didn't line up too well either. I decided to use the dro, line up centre on the raised portion on the back of the casting, then place the holes as best I could in the bosses.

The holes are correctly placed at 2" centres (50.8mm) but they don't line up in the bosses very well.







Mark Elen 110/02/2019 17:08:57
107 forum posts
179 photos

One of the things that I have not been looking forward to was machining the bow. I don’t know why now. I got stuck into it last night, doing the slides first, then today I have set it up on the angle plate and drilled the boss.





Don’t look too closely at the spirit level on the square... I still need to level the mill.



Mark Elen 111/02/2019 22:23:43
107 forum posts
179 photos

I got the hole drilled in the boss, then set back up on the table using the slide bar and clamps to hold the bow in correct alignment. I took really light cuts, because the bow is just hanging in free space.

I milled off the ends and the waste in the middle, made up the threaded adjuster, I need to mill half of the end off now and drill for the pin. I have marked up for the M5 screws to hold the blade, just need to drill and tap.




I have had to go 'off piste' with the adjuster screw, putting a 120 degree cone on the end. The drawings/casting is a bit out. the boss should be 1" long, but just skimming the end square, left it 3/4". I drilled down 39mm, the drawings called for 1 3/8" (34.93mm) even with this adjustment, if I had left the adjuster square and drilled for the pin at 1/4" the blade would not have fitted.

At 1/4" from the tip of the cone, the blade should fit with a little slack.



Simon Birt18/02/2019 14:28:10
7 forum posts
3 photos

Just fell across this. I built one of these last year it was an interesting project. It marked my return to model engineering after a nearly 20 year gap. Not sure if you have done it yet but the fit between the saw casting bearing surfaces and the arm that it runs on needs to be on the tight side. Mine makes a bit of a clunk when cutting as it changes direction. On reflection I would machine it within a few thou and then hand fit until it just slide on the bar. It was surprising how it loosened up jouring the running in process.

I’m very please overall, it cuts very well and is still on the original blade after 6 months.


Simon Birt18/02/2019 14:53:47
7 forum posts
3 photos

Here is a picture


not done it yet18/02/2019 16:14:44
3165 forum posts
11 photos

He he! If that pic is a recent one, you’ve not used it a lotsmiley_

Looks good, btw.

Simon Birt18/02/2019 17:54:27
7 forum posts
3 photos

It was taken after it was finished, it is now a bit less shiny, not sure if is appropriate to polish a hack saw.

All Topics | Latest Posts

Please login to post a reply.

Magazine Locator

Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!

Find Model Engineer & Model Engineers' Workshop

Latest Forum Posts
Support Our Partners
Eccentric July 5 2018
Advertise With Us
Meridienne Sept 2019
TRANSWAVE Converters
Eccentric Engineering
Allendale Electronics
Subscription Offer

Latest "Wanted" Ads
Get In Touch!

Do you want to contact the Model Engineer and Model Engineers' Workshop team?

You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.

Click THIS LINK for full contact details.

For subscription issues please see THIS LINK.

Digital Back Issues

Social Media online

'Like' us on Facebook
Follow us on Facebook

Follow us on Twitter
 Twitter Logo

Pin us on Pinterest