How The Devil Do I Sharpen This?

middle.road

middle.road

Granite Stoopid...
H-M Supporter Gold Member
Better Half scored a 'Hermes Plastic Shear'. Downside is that the clod that she takes with her to the sales
did not notice the 'dings' in the blade. (she's muttering something about finding a better 'Technical Consultant'...)
It's a couple of inches wide and 14-1/2" long.

How or where do I get this sharpened? I was thinking of putting it on the mill and cleaning it up until the dings
are gone and then hand stoning it perhaps. I'm not really sure.

Thanks!

P1080060r.jpg P1080061r.jpg
 
If a file will cut it, fixture it up on your mill and slab mill, not end cut, the bevel until all the damage is removed. Then set up with a flat mill file and draw file until razor sharp. That how I've sharpen a couple of paper cutters in the past. Surface grinder will work, but may burn the sharp edge.
 
Yeah, that one is set up differently, the blade that is. A regular paper cutter blade is almost 90 degree square. I recall, about a 5 degree relief angle on the cutting edges. Never seen one setup like that.
 
you could affix some 100 grit sandpaper to a suitable piece of glass, and work the blade to remove the nicks.
you may need to fab a blade holder of some sort.
if you need to take a lot of material off the blade, you may need to shim the blade back into it correct proximity to the bed.
otherwise the cutter may not cut very cleanly.
it might be advisable to check the blade clearance with a feeler gauge before disassembly to get an idea of the original clearance.
judging from the blades appearance , the clearance may be loose as it sits.
there may even be slight interference between the bed and the knife that may have added to the jagged end result
 
I use a planer knife grinder.
Mine looks a lot like the one pictured below
wetgrindersherwood.jpg
I always regrind my planer knives before I start a new project, only takes a few grindings to pay for one of these.
I hone the blades by hand on water stones after grinding - a very spooky job since you can't wear gloves, and it is very easy to tap a knuckle on a 12" knife.

I would just send it out to a knife sharpener. Any place that can sharpen a lawn mower blade can sharpen a paper cutter. It is not like it needs to be ground to equal size or weight for balance.

Hand sharpening is indeed an option if you are decent with stones and are brave. I would not recommend it to someone who needs to use a guide to sharpen a chisel, or who is afraid of deep cuts that bleed a lot :)
 
contact a company named "KNIVES AND BLADES" in the mid west.

  • 11411 W Theodore Trecker Way, Milwaukee, WI 53214 · (414) 258-6100 is the information.
 
It is almost like some of the old time large paper cutters I use to use that did as much as 500 sheets at one time. We would send them off to the machine shop who would grid them down for us. They had to be perfectly smooth on the back (flat side) and at the proper angle on the front side. They also had to be smooth on the edge or it would cause the edges to be jagged. It was similar to what the planer knife sharpener above does but on a larger scale. You will prob want to check the table portion of the it to see if there are any nicks in it also as that will cause jagged edges as well.
 
Table edge looks to be in good shape. It is sharp, that's for sure. It's a straight angle back from the edge. no double bevel.
Looking at it this morning it doesn't appear to be much adjustment in the mounting screws, so I'll need to see if it will still fit with the
material that needs to be removed.

@Ken - it does remind you of the paper slicers doesn't it.

Looking at it over coffee this morning I'm wondering if I could get away with just polishing it up and let the new owner deal with it. :grin:
Make sure the Missus mentions it when she lists it.
 
You must log in or register to reply here.
Back
Top