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Building a power hacksaw   Message List  
Reply | Forward Message #9618 of 10773 |
Re: Building a power hacksaw

--- In multimachine@yahoogroups.com, keith gutshall <drpshops@...> wrote:
>
> Hello Cassidy
> Bicycle chains are not that good for machines like a power hacksaw.
>
> Roller chains tend to stretch in use, and can be noisy in use.
> If they are not lubed they wear out quickly.
>
> A belt drive would be the better idea ,standard V belts would work
> a lot better for the drive.
>
> Keith
>
> Deep Run Portage
> Back Shop
> " The Lizard Works"
>

Thanx, Keith. I'll keep that in mind.




Mon Jul 6, 2009 2:53 pm

cassidymeyer
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Message #9618 of 10773 |
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Hi Guys, I'm toying with the idea of building a power hacksaw loosely based on the plans at...
cassidymeyer
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Jul 6, 2009
7:35 am

Depends on what sprockets you have available. I once used chains and sprockets out of a lawnmower to drive a concrete mixer. I reduced the speed from 1450 rpm...
cliveadams23@...
cliveadams79
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Jul 6, 2009
9:08 am

Thanx, Clive....
cassidymeyer
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Jul 6, 2009
9:40 am

Hello Cassidy Bicycle chains are not that good for machines like a power hacksaw.    Roller chains tend to stretch in use, and can be noisy in use.  If they...
keith gutshall
drpshops
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Jul 6, 2009
2:36 pm

... Thanx, Keith. I'll keep that in mind....
cassidymeyer
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Jul 6, 2009
2:55 pm

... 1. Use pulleys and "V" belts from the motor to a jackshaft, chain won't last very long. Once you have a slower speed, chain will work well. Of course...
David LeVine
sirdave144
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Jul 20, 2009
7:10 pm

... Hi Dave, Thx for the reply. 1) That's the plan 2) I'll keep the idler in mind. Initially I wanted to avoid a lifter - in truth I do'nt know how it'll work...
cassidymeyer
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Jul 21, 2009
8:43 am

... If you can use a hydraulic cylider for lifting the hacksaw you could perhaps add a second smaller hydraulic cylinder with short way that get pushed by a...
franksturmer
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Jul 21, 2009
9:32 am

... Hi Frank, It seems that industrial saws' lifters operate on the principle you're describing. I can picture it.... very vaguely :-). I'm going to see a...
cassidymeyer
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Jul 21, 2009
10:35 am

... I think it's more straight to use final position switches to switch the additional lift. If you use electric switches you could make the motor-control with...
franksturmer
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Jul 21, 2009
1:15 pm

Vince Gingery has a book from Lindsay's about how to make a power hacksaw. I haven't read it but it seems to be purely mechanical in nature (no limit switches...
jprimex2000
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Jul 22, 2009
10:16 am

... Thanx, for all your advice Frank....
cassidymeyer
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Jul 22, 2009
12:25 pm

... A lifter can be as simple as Gingery's design, mount the center of the "wheel" well below the hacksaw frame. Near the bottom of the stroke, while you are...
David LeVine
sirdave144
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Jul 23, 2009
2:21 am

... Hi David, I've been looking at a lawnmower engine's crank and piston assembly and thought that may be a possibile solution. I can still see a complication...
cassidymeyer
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Jul 23, 2009
7:38 am
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