Hemingway Power Hacksaw

[Chuck TaperParticipant @chucktaper]

I have noted a number of threads here regarding the subject line. Could someone in the know estimate the length of time this project might take to complete.

I understand that this a variable but I just need to estimate if, given a well equipped shop and reasonable level of competence, it is going to take a weekend or a year of weekends – or more!.

Thanks in advance for any help.

Regards.

Frank C.

[Chuck TaperParticipant @chucktaper]

Build Time Investment

[BizibilderParticipant @bizibilder]

I always find this method is pretty good for estimating "time to build":

Estimate the number of components in the whole project (including nuts and bolts!). Say it comes out to be 200. Call that 200 hours. So 200 hours at, for example, 10 hours per weekend would give 200/10 or 20 weekends. I'd round that up to six months work.

 

Edited By Bizibilder on 23/01/2023 10:20:08

[Nigel Graham 2Participant @nigelgraham2]

Having made a couple of Hemingway kits – a boring-bar set and a tool-&-cutter grinder, I can say this won't be a "weekend" task. Some months of weekends would be a fairer guess.

As it's not a flat-packed hacksawing-machine, but a set of castings, bar-stock and other components there will be quite an amount of machining to do.

Hemingway seem to design their kits and instructions to allow using simply a Myford 7- series lathe with vertical slide, and a bench-drill; which is probably all that some of the original designers of these machines had. So if you have a vertical milling machine as well, it will enhance and accelerate building these kits.

Their drawings and instructions are clear and comprehensive, using both orthographic and coloured 3D images; though you may need alter their suggested methods a bit to suit your machine-tools etc..

(As a very simple example of the last point, I did not make the angle-steel jig as suggested for guiding the stamps for numbering the grinder's protractor scale. I used an old Vee-block instead. )

[Author]

Posts