[TheForge] A little OT -- a mini-scale saber saw?

Tue Apr 5 08:19:50 EDT 2011

I don't think I can go this route.  I'd have to put a tank that large
out of doors.  I'll just wait till I find what I want in a compressor.

I looked at one being sold used a couple weeks ago.  The 4.5 HP
compressor ran fine but was very loud.  there was a slow air leak in
some obscure fitting impossible to reach.  The quick-connect was
plumbed backwards, so when you removed the hose all the air blew out
of the tank (and there was no shut-off valve).  The tank showed rust
on the outside and the owner said it might have water inside as he had
NEVER drained the tank -- the stopcock was frozen.  I passed on that
one!

On Tue, Apr 5, 2011 at 2:07 AM, peter fels <artgawk at thegrid.net> wrote:
> How much air do you need?
> More storage means more air for longer.
> Be very conservative with air pressure tanks!
> They can go off like a bomb!..Lotta kinetic energy!
> Putting them somewhere way over there, has a lot of virtue.
>
> My first compressor was from an old refrigeration unit,
> The tubing went to 2, 250 gallon, ( carefully washed out) former propane tanks.
> I used several hot water heater over- pressure valves in each one and tapped a hole in the bottoms
> for radiator drain valves .
> Ordinary sched 40 house plumbing will generally deal with 100 PSI. if you are careful.
>
> It was enough air to do a little sandblasting...or run an air tool for a while.
> Needless to say, that rig took a long time to recover.
> Safe from air tool boredom.
> Cost around $5 for fittings i couldn't scrounge.
>
> On Apr 4, 2011, at 8:49 PM, Bruce Freeman wrote:
>
>> How big a tank do you mean?
>>
>> On Mon, Apr 4, 2011 at 6:59 PM, peter fels <artgawk at thegrid.net> wrote:
>>> An inexpensive little compressor ( even one from a bigger freezer) and a big pressure rated storage tank,
>>> will cover a whole lot of applications.
>>>
>>> On Apr 4, 2011, at 3:12 PM, dann at wctatel.net wrote:
>>>
>>>>
>>>> Bruce,
>>>>
>>>> On one of my EAA / experimental aircraft builders groups, they talked
>>>> about an inexpensive little air- saw that "worked great".
>>>> Here is a link from harbor freight.
>>>> http://www.harborfreight.com/high-speed-metal-saw-91753.html
>>>>
>>>> Dann
>>>>
>>>>
>>>>> Bruce...it's easy to cut down jig or saber saw blades with an abrasive
>>>>> disc.
>>>>>
>>>>> On Apr 4, 2011, at 5:18 AM, Bruce Freeman wrote:
>>>>>
>>>>>> I have a saber saw with 6"- 8" blades.
>>>>>>
>>>>>> I have a "jig saw" with 3" - 4" blades.
>>>>>>
>>>>>> What I need now is a hand-held reciprocal saw that takes blades maybe
>>>>>> 1" long.  This tool should ideally be comparable in size to a Dremel
>>>>>> tool, and have replacement blades available of different types.  I
>>>>>> need it for cutting small holes in plastic, wood, and thin metals.
>>>>>>
>>>>>> Anyone know of such a tool?
>>>>>>
>>>>>> I've been tempted by those oscillating tools, but they don't quite
>>>>>> fill this bill.  I've been using a Dremel tool with rotary saw blades,
>>>>>> but that isn't suitable for all of the tasks I'm doing.
>>>>>>
>>>>>> --
>>>>>> Bruce
>>>>>> NJ
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>>
>>
>>
>> --
>> Bruce
>> NJ
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-- 
Bruce
NJ