Electric chain sharpeners

[predator]

I think Alec who lurks in the milling threads has mentioned he uses a ex lab transformer or similar to reduce speed and says its a lot better.

 

yes i think alec has hit the nail on the head so to speak". I tried it with good results today

[Treemover]

Bought one of these tonight; will see how it goes tomorrow?

 

[predator]

maybe me being wrong but just a thought as i already posted using a variac at lower volts workes better why not try a 110v transformer half the speed/power should help stop the bluing etc i tried mine at 110v and worked ok

[Stock]

My solution..............run off 12v.............

 

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this is a mix of two Oregon products............

[spudulike]

My speed/power control arrived from China, typically no instructions and nothing coming from the eBay seller but have looked online and others have how to wire it up so will experiment with it next time a chain needs doing.

 

It should cut down on the cutters building up heat and hardening the chain!

[Macpherson]

Personally I prefer the teeth to be at least hard enough to ruin an oregon file in no time, after all a saw chain is the only cutting tool I use that is soft enough to file, for example, I wouldn`t want a drill or a chisel that could be sharpened with a file.

Imo I don`t think a dremmel type grinder is capable of overheating the cutters, whereas a bit of care is needed with the disc type. Cheers

[mendiplogs]

Bought one of these tonight; will see how it goes tomorrow?

 

 

Hi TREE shires Wayne has one of them mate he said there great to thanks Jon

[Treemover]

Find it works pretty good, in fact it's as near new sharpness as I have ever got.

My only concern is that the thumb dial on top, seems as if it can shift; but maybe it doesn't? I just found that when I get back to the teeth I started with, it takes off more. I would have thought it shouldn't.

 

Not a cheap tool, but I like its simplicity.

[spudulike]

Well the voltage control arrived, no instructions so worked out what was what - it was like this one 4000W 220V SCR Voltage Regulator Motor Speed Controller Dimming Thermostat EC | eBay

 

Fitted to my Silverline grinder, does it work.......damn well I say, it now sharpens the chain and keeps the heat down that well that the crud on the cutter doesn't even burn and when you use a red marker on the cutter to check where you start from, when ground, it retains the colour so I can safely say that the grinder running at a slower speed generates negligible heat.

 

No heat means no hardening so a worthwhile mod and for only £5.00:thumbup:

[gensetsteve]

If you drop the voltage the amps increase and so does the heat in the motor so may be worth keeping an eye on how hot the motor is especially if having a chain sharpening fest.