Cutting down a back blade - good idea?

   / Cutting down a back blade - good idea? #31  
Rather than clamping a guide, I picked up one of these from Harbor Freight:
http://www.harborfreight.com/18-in-magnetic-tool-holder-62178.html

On my power max 45, the torch rides along the edge pretty nicely. Only thing is if you're maxing out the machine and cutting something like 5/8" plate it will get warm and the paint gets a little gummy. I've threatened to wire wheel the paint off to fix that, but it hasn't bothered me enough yet. It will collect metal grindings, but I wipe it with a chunk of 2x4 to get the heavy stuff off, then wipe the rest off with my glove. One of the better $5 I've spent.

Funny enough, the project you're describing was the first project for my plasma cutter too. Picked up a cheap 7' blade which was too long for my JD (couldn't spin it all the way around without hitting the rear tires), so I cut about 5" off each end. Plan was 6, but the bolts at the edge would have interfered. I didn't remove the cutting edge and it was a bit of a pain getting through both layers of metal, but nothing a flap/grinding wheel couldn't dress up. Now I have a 6'-2" rear blade!

Awesome view by the way. I used to live in Renton and a coworker lived on the water in Samammish (sp?) with a view not quite as nice as yours. I remember toward the end of winter you could snowmobile in the morning and ride jet skis in the afternoon. Absolutely loved the PNW.
 
   / Cutting down a back blade - good idea? #32  
Just a thought here, but if the OP has not yet cut the 6ft blade down to a 5ft blade, you might advertise on craigslist and other internet venues of that nature that you are willing to swap a 6ft blade even for a 5ft one, assuming that interests you. I know you're chomping to use that new plasma cutter on it, but it seems to me that if you can find someone to swap with, that would save some time and effort so you can do more important things like finish destroying that hot tub. :laughing:

I find dealing with flakes on Craiglist way more time consuming than what this project would entail. With that said, buying/selling farm implement stuff tends to be much better to deal with than car stuff or tools. My vote is cut it!
 
   / Cutting down a back blade - good idea?
  • Thread Starter
#33  
Status... Pouring rain solid all day. Looks like I will have to wait until next weekend. Might try making a template though. Looks like it will be 5in off each end. The blade is welded to the sliding carriage and I'm limited by the cutting edge bolts.

IMG_9410.jpg IMG_9411.jpg
 
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   / Cutting down a back blade - good idea?
  • Thread Starter
#34  
Okay help! Started the cut and hoping I could do it without taking the cutting blade off. Guess not. I started taking the nuts off with the impact wrench but only 2 of 6 came off. The rest are spinners. How do I keep the bolts from rotating?

IMG_9440.JPG. IMG_9439.JPG
 
   / Cutting down a back blade - good idea? #35  
   / Cutting down a back blade - good idea? #38  
Lol - sometimes it is easy to miss what is right in front of you. Today I was looking for a weight bracket for my BX so I could run my tiller. looked all over the shop, checked the barn, couldn't find it anywhere. Then I went to get on the tractor and noticed it was on the front..... Funny thing is I already put the tiller on and refueled it........
 
   / Cutting down a back blade - good idea?
  • Thread Starter
#39  
Job done! Took longer than I thought only because my welder, plasma cutter, and air compressor are all sharing one 220v outlet. What a pain! I really need to put in a sub panel and bring more juice to my shop.

Plasma easily cut the 1/4in but struggled with the 1/2in. Got some ideas why but think I will start a new thread in the welding forum because I don't think it is a simple solution due to the tapered thickness of the cutting edge.
 
   / Cutting down a back blade - good idea? #40  
Project success and skill development all in one fell swoop. Well done! Paint it up and show us pics of the end resilt.
 

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