Author Topic: Square Grinders  (Read 8435 times)

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Offline Cut4fun .

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Re: Square Grinders
« Reply #150 on: April 10, 2018, 06:51:32 am »
Just saving some Simington swing arm square grinder pics I was sent.

Was wanting to see the adjustment 2 piece swing arm deal.

What's the story on the yellow spacers in the last 2 pictures?

Not mine so dont know. Maybe Roger knows since he owns one.   

WAG keeps the creep out of the nut snugged up to it?
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Offline 3000 FPS

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Re: Square Grinders
« Reply #151 on: April 10, 2018, 09:17:53 am »
Just saving some Simington swing arm square grinder pics I was sent.

Was wanting to see the adjustment 2 piece swing arm deal.

What's the story on the yellow spacers in the last 2 pictures?

Some one added those to the stops.   I do not have those on mine and I do not use the stops for the swing arm.   I do that by eye with a pair of magnifiers on,
PP 505, 475, 445.
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Offline concretegrazer

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Re: Square Grinders
« Reply #152 on: April 10, 2018, 09:46:16 am »
Just saving some Simington swing arm square grinder pics I was sent.

Was wanting to see the adjustment 2 piece swing arm deal.

What's the story on the yellow spacers in the last 2 pictures?

Some one added those to the stops.   I do not have those on mine and I do not use the stops for the swing arm.   I do that by eye with a pair of magnifiers on,

I've noticed they do move some. Was curious what they were using.

Offline Cut4fun .

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Re: Square Grinders
« Reply #153 on: April 10, 2018, 10:14:25 am »
Looks like big tygon fuel line to me.
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Offline Cut4fun .

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Re: Square Grinders
« Reply #154 on: April 11, 2018, 10:48:45 am »
Just saving info I am digging up.   

Tuning simington  http://www.madsens1.com/sim_tuning.htm

How to's  http://simingtonchaingrinder.com/how-to-videos/

From madsens catalog


#M21 grey medium-soft vitrified 120 17.95
• This wheel dresses easily and removes material quickly. It doesn’t hold its shape as well as harder wheels, but It remains one of our best selling wheels.

#M21W grey waxed medium-soft vitrified 120 18.95
• This wheel is similar to the wheel above, but it is impregnated with wax for lubrication and cool grinding. Like the wheel above, it produces a good finish on cutter teeth, but it is not as popular.

#M47 salmon medium vitrified 100 17.95
• This wheel shapes and finishes cutter teeth well. It doesn’t remove material as fast as softer wheels above. It is also one of our best selling wheels.

#M50 white medium vitrified 100 17.95
• This wheel is similar to the wheel above. Some grinder operators say its white color makes it easier for them to see the corner in the wheel, which improves their ability to align corners.

#M49 brown medium resinoid 80 18.95
• This wheel removes material easily and quickly, however it doesn’t finish or shape as well as others. It is a good wheel if you have to grind a lot of chains each night or if you regularly sharpen rocked chains.

#M99 blue medium vitrified 100 39.95
• This is our only ceramic blend wheel. It keeps its shape and finishes cutter teeth very well. It is an excellent wheel and many grinder operators prefer it, but it is also the most expensive.
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Offline Cut4fun .

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Offline Nixon

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Re: Square Grinders
« Reply #156 on: April 17, 2018, 03:44:30 pm »
The yellow tubing on the adjustments is probably there as a friction stop . I used theaded well nuts on mine . It keeps the various adjustments from moving . There are just threaded rods for most of the adjustments on the 451c .
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Offline Cut4fun .

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Re: Square Grinders
« Reply #157 on: April 18, 2018, 02:19:47 pm »
Well here was the reason for my little saw sell off.
Silvey Razursharp early one that the first Simingtons came from when they bought the rights to it.
Then Silvey started on another one later on but different from my readings.
Just setting up and learning something new. Hopefully I can pick this up and offer square grinding local. Because I gave up the square file a few years ago. But got me thinking when a local ask me to square a 60" chain for him and I turned it down.

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Offline 3000 FPS

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Re: Square Grinders
« Reply #158 on: April 18, 2018, 05:51:00 pm »
Very good.   With some practice you will get some pretty sharp chains and there is nothing like square grind.   
PP 505, 475, 445.
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Offline Cut4fun .

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Re: Square Grinders
« Reply #159 on: April 18, 2018, 06:09:51 pm »
Just tested my first loop of RS round converted to square.  Cut good and good chips. 

I was going to compare it to a LGX loop I ran on the 65cc 415 in ash. Then went to put the converted RS loop on and came up short. Counted the drive links and had done a 70DL not 72DL like the LGX was on 415.   
So put on a 60cc poulan for testing. 



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