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6:37 AM July 17, 2010
| Wooly Mammoth
| | South carolina, USA | |
| Member
| posts 134 |
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Liike a lot [most?] of beginning amateur machinists , my imagination far exceeds the budget for tools. Yes, I got the BGT [Big Green Tank :)], which claims to be a metal lathe/mill/edrill press combination tool, but at this point a metal-cutting bandsaw is not possible – sigh… Sure, I've used my 'armstrong' manual hacksaw, but even cutting 3/4″ bar stock to amke Tyler's spring center is tedious… and in the coastal S. Carolina humidity, a sweat-drenched experience… and a soggy Mammoth dripping sweat is NOT a pleasant sight, never mind the smell!!! :):):)
So, I got out my 3″ 'high speed air cutter' from Harbor Freight…, hooked it up to the compressor and went to work. These are around $10 US, often on sale as low as $6.99… got mine several yrs back when I got the compressor, so probably didn't pay more than about $5 for it.
Haven't tried it on plate stock – think it would be highly unsatisfactory for that. But for round bar stock, flat bar, and angle iron, it works very well.
I clamp the stock to be cut along the axis of a sawhorse, mark it, sit on a stool, steadying the cutter with both hands [using suitable eye protection of course], and go at it… it's not fast, but with a steady 2 hand hold, you can get pretty good accuracy.
Anyway, it will keep me going until I save up for /and/or decide to get a HF metal bandsaw on sale.
Hope this helps other beginners with more dreams than dollars :)
– Don Down here, shorts, flip- flops, and a ponytail are the Mammoth's summer uniform :)
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7:26 AM July 17, 2010
| Tyler
| | Seattle, WA | |
| Admin
| posts 319 |
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HF used to sell (and I think still does, but I can't find it on their site) a base for an electric angle grinder that turns it into a tiny metal chop saw. It's pretty slick. My neighbor has one. I'll try to get a picture/part #.
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7:41 AM July 17, 2010
| Tyler
| | Seattle, WA | |
| Admin
| posts 319 |
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Post edited 7:43 AM – July 17, 2010 by Tyler
Found it on amazon. Click here to go to the Amazon page. I've actually used it and it works pretty good for small stock. Anything over an inch I'd stay away from.
 
And while searching for that I found these nasty pics (scroll down to the bottom of the page). This is why angle grinders should be treated with respect and used with the guards in place! 
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8:34 AM July 21, 2010
| origin7511
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| Member | posts 5 |
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I wonder if there is such a contraption for a 7″ angle grinder? I have a Harbor Frieght 7″ that I use to cut most stock off rough (and I do mean rough). I have plans to get a Rage Evolution multipurpose miter saw for this activity later on. I'm really running low on space I can dedicate to metal-only tools and I loved the fact that the Rage can be a much-needed wood tool as well. Anyway something like that little grinder press would make do nicely and keep my cuts a little more square and true. Right now I have to allow almost a 1/4″ to stay safe on dimensions when cutting things apart.
Yes, that tool scares the bejesus out of me more than anything else I use. It is amazing how fast it can bind and come leaping out of a cut and how powerfully it will do so. I worry about one of those disks shattering even with the guard on. Steel is the easiest to cut and aluminum is the worst, it gets gummy and wants to grab at the disk. I keep water near by to cool it down and that seems to help get back to cutting and not just melting.
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1:25 PM July 23, 2010
| madreptillian
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| Moderator
| posts 63 |
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Mammoth for your 3/4″ stock and other sizes why dont you grind up a parting off tool? that way you dont get any dead arms or risk slipping on the sweat left on the floor! Just make sure you have enough clearance and your tool is on centre height.
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6:35 AM July 24, 2010
| Wooly Mammoth
| | South carolina, USA | |
| Member
| posts 134 |
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As always, oh mighty Reptillian, you are correct, but A. don't have any HSS tool blanks yet, and B. haven't tried any long [2-3 foot long] bar stock through the spindle of the BGT yet. It is set up for this – there's even a cute swiveling plastic cover for the outboard opening :)
As for slipping in the pools of sweat, the driveway concrete is rough, so no problems there. Some day will get around to posting pics of the BGT with its mobile base – rolled to the garage doorway, I get a zillion candlepower of sunlight [for tanning AND illumination of work, as well as solid, non-slip footing [or for Mammoths is that 'hoofing'??? :) ] on the driveway.Can picture a long piece of stock through the spindle, slightly bent causing a propeller effect as the BGT powers up, zooming the BGT around the yard with the Mammoth frantically hanging on, ponytail flapping in the breeze, inventing new colorful cuss words!
– Don Betting a machinist was the first one to say "#%$^*! :):)
HACKSAW: One of a family of cutting tools built on the Ouija board principle. It transforms human energy into a crooked, unpredictable motion, and the more you attempt to influence its course, the more dismal your future becomes.
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8:37 PM July 28, 2010
| Ironman
| | Warburg, Alberta | |
| Member | posts 23 |
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Wooly, it's hard to believe a mammoth cannot intimidate enough schoolkids out of their lunch money to come up with 250 bucks for a bandsaw.  
This is a much more useful tool than even a lathe. (now I'll have to wash out my mouth with soap)
Get you a mitre type saw…it's so much easier than swinging the tail of a 20 ft piece to cut an angle.
like this one http://busybeetools.ca/cgi-bin…..ITEM=B2544
Ok…$380….more kids money
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5:36 AM July 29, 2010
| Wooly Mammoth
| | South carolina, USA | |
| Member
| posts 134 |
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Hi Ironman,
Mammoths is friendly… :) probably too nice actually… hummm, could be why we is nearly extinct :):) besides, with hind hip joints each replaced TWICE, da Mammoth can't run fast enough to catch anybody! So, re the $'s for a metal cutting bandsaw, A. retired on disability ain't the most lucrative retirement, B. maybe more important right now, don't have the room for a bandsaw… sigh… Work table, BGT, air compressor, mechanic's tool chest, and table saw are all mounted on HD casters so they can be wheeled out of the 'garage' for use… sigh… have begun watching for a used bandsaw in the area though. However, there are cigars to buy and a couple of other interests to fund as well… sigh….. so much fun, so little money…:):) Appreciate everyone's thoughts and ideas though.
– Don Figuring that when I win the Lottery, 47 thousand other folks will have the winning numbers too, and we'll each win $67 bucks!!! :):):)
PLIERS: Used to round off bolt heads.. Sometimes used in the creation of blood-blisters.
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10:09 AM August 15, 2010
| JohnLawson
| | Tacoma, WA | |
| Senior Member | posts 37 |
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A slitting saw on a shop made arbor together with a boring table or milling attachment (probably have to remove the tailstock temporarily) makes a po' man's cutoff saw that will do MOST of the cutoff work.
If you take a brand new hacksaw blade and grind off the side rake from the teech, you have an excellent tool with which to cut grooves in your work that are very narrow and accurate.
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