Chainsaw Repair

Chain - Grinders - Filing - Wood Milling - Tools - Welding - Machinist - Mowers - Tillers => Chain - Bars - Grinders - Filing => Topic started by: mdavlee on January 01, 2013, 08:00:46 pm

Title: Square grind wheel finishes
Post by: mdavlee on January 01, 2013, 08:00:46 pm
I dressed a couple wheels tonight and ground a tooth with each to take a picture to show the differences.

Blue ceramic
(http://i726.photobucket.com/albums/ww268/mdavl/Chain/blue_zpsa2e1b40c.jpg)

salmon
(http://i726.photobucket.com/albums/ww268/mdavl/Chain/salmon_zpsa1585f19.jpg)

gray waxed
(http://i726.photobucket.com/albums/ww268/mdavl/Chain/gray_zps6218274f.jpg)
Title: Re: Square grind wheel finishes
Post by: mdavlee on January 01, 2013, 08:03:40 pm
White wheel

(http://i726.photobucket.com/albums/ww268/mdavl/Chain/whitewheel_zpse401929f.jpg)
Title: Re: Square grind wheel finishes
Post by: 660magnum on January 01, 2013, 09:05:25 pm
I'm seeing several other variables.

The inside vertical with the small salmon is a little on the sharp side.

The blue wheel is best overall finish to me?

It is probably camera color reflections but do I see a little blue on the gray waxed?

Inside angles are blunt with the white but would probably work well in the woods.

Camera angles cause distortion and outside vertical on the blue wheel looks wrong on the left cutter and correct on the right cutter and I know the vertical dresser angle would have likely been the same on all the wheels.

Nice cutter pictures and excellent attention to the beaks.
Title: Re: Square grind wheel finishes
Post by: Cut4fun . on January 01, 2013, 09:08:31 pm
Maybe do a 60dl of each one and test out of curiosity?
Title: Re: Square grind wheel finishes
Post by: 660magnum on January 01, 2013, 09:15:32 pm
Part of my inquiry is wanting you to elaborate on the problems associated with changing to wheels of different diameters and having to move the slide assembly back and forth with the Razur Sharp II ? And what I can interrelate to my Silvey Swing Arm.
Title: Re: Square grind wheel finishes
Post by: mdavlee on January 01, 2013, 10:08:30 pm
I could do that Kevin if I had some 60 dl left. I sold all the chain I had here the other day and could have sold more if I had it.

I just dressed the blue wheel tonight for the first time. I had the gray one on there since I wanted to try it on a rocked chain. There is wax stuck on the cutter that was ground by the gray. I didn't notice until I was already editing the picture to downsize it.

The salmon is down to the end of it's useful life so I couldn't get the gap I wanted on the chain holder to wheel. That piece of chain is scrap and what I use to test different wheels and angles before I actually use it on a chain I'll run. The right side weren't even ground on the same grinder.

You can slide the whole assembly in or out to keep the chain holders feeding in on the same angle all the time to keep the top plate the same angle. I don't know if it makes sense and if it doesn't I'll take some pictures and edit them to try to show what I'm saying. The swing arm where the chain holder can't slide in to compensate for the wheel wearing you're going to keep intersecting at a different point on the wheel from where you started when the wheel was new. It will change your side plate angle and top plate. If I was a photoshop wiz I might be able to help you more.
Title: Re: Square grind wheel finishes
Post by: 660magnum on January 01, 2013, 10:13:19 pm
Thanks
Title: Re: Square grind wheel finishes
Post by: mdavlee on January 01, 2013, 10:16:11 pm
No problem. I just hope you understand what I was saying. I even asked my wife how to describe what I was showing her in my crayon drawing. :D
Title: Re: Square grind wheel finishes
Post by: 660magnum on January 01, 2013, 10:23:33 pm
I got it.

I've been thinking a lot about the interrelationships of the approach angle with varying wheel diameters.

My older swing arm, I can move the chain holder to the rear from centered on the fastener but have not played with that yet.

I have two salmon wheels, one from Silvey and a Molmab from Bailey's. I have not used the Molmab yet.
Title: Re: Square grind wheel finishes
Post by: mdavlee on January 01, 2013, 10:28:44 pm
From what a couple people said the molemab aren't as good as the pacific/madsens wheels. The older swing arm should give you more flexibility in chain angles for softwood or hardwood or to get closer to race chain angles.
Title: Re: Square grind wheel finishes
Post by: 660magnum on January 01, 2013, 10:31:33 pm
I was reading in the other thread but didn't post there. Don't plan on any more Molemabs. They cost more from Bailey's anyway.
Title: Re: Square grind wheel finishes
Post by: mdavlee on January 01, 2013, 10:38:19 pm
I get everything from madsens any more. Baileys shipping is killer a lot of the time.
Title: Re: Square grind wheel finishes
Post by: 660magnum on January 01, 2013, 10:52:51 pm
I ordered a case of 24 bottles of 6.4 oz synthetic 2T oil along with the Molemab wheel and the shipping was like $19.95 and they sat on the order for almost 3 wks before they shipped it. I got a free Bailey's hat.
Title: Re: Square grind wheel finishes
Post by: mdavlee on January 01, 2013, 10:54:17 pm
Madsens will throw stuff in a flat rate box and I get it in 2-3 days in east TN. Baileys seems to be at least a week no matter what shipping you use unless it's 2 day.
Title: Re: Square grind wheel finishes
Post by: 660magnum on January 01, 2013, 11:05:44 pm
I was supposed to have free 3 day shipping but it looks like I got charged for it. Then they sat on the order so long I had to call them twice about it.

The office and the shipping place are 100 mi apart.
Title: Re: Square grind wheel finishes
Post by: mdavlee on January 02, 2013, 10:18:53 am
I paid for 3 day select UPS from them once and it still took 5 days. They did refund part of the shipping money but it was still a waste since it wasn't on time. I like their parts on hand but without quick shipping they don't help me out a lot. I get much better service from stpike or jacks small engines for husky.
Title: Re: Square grind wheel finishes
Post by: 3000 FPS on January 02, 2013, 11:49:53 am
Vary nice looking examples.  I do not have a square grinder so I really cannot envision the complexities involved but I can look at a chain and see the angles and where the beak is.  The end result looks good.
Title: Re: Square grind wheel finishes
Post by: Playinwood on January 02, 2013, 02:13:20 pm
I'm seeing several other variables.

The inside vertical with the small salmon is a little on the sharp side.

The blue wheel is best overall finish to me?

It is probably camera color reflections but do I see a little blue on the gray waxed?

Inside angles are blunt with the white but would probably work well in the woods.

Camera angles cause distortion and outside vertical on the blue wheel looks wrong on the left cutter and correct on the right cutter and I know the vertical dresser angle would have likely been the same on all the wheels.

Nice cutter pictures and excellent attention to the beaks.


Part of my inquiry is wanting you to elaborate on the problems associated with changing to wheels of different diameters and having to move the slide assembly back and forth with the Razur Sharp II ? And what I can interrelate to my Silvey Swing Arm.

By loosening the bolt and sliding the holder closer to the wheel gives you a sharper top plate, I can get about 40 degree before I hit.
Great for play chain terrible for hardwood work stuff.
Salmon wheel seems to be the best for dollar value, the blue is best over all with the nicest finish, a couple of racers have built pretty darn nice chain with them.
My RS is sitting in the garage in cobwebs, maybe time to play with it again
Title: Re: Square grind wheel finishes
Post by: mdavlee on January 02, 2013, 02:57:25 pm
I'll try to get a white background and use my DSLR and get better pictures of those teeth here shortly. I just got back from spending a fortune on a set of tires.:(
Title: Re: Square grind wheel finishes
Post by: 660magnum on January 02, 2013, 03:44:50 pm
I think the angle & lighting combination was best on this picture you took of the chain tooth ground with the white wheel? You probably don't remember just how you did that one?

(http://i726.photobucket.com/albums/ww268/mdavl/Chain/whitewheel_zpse401929f.jpg)
Title: Re: Square grind wheel finishes
Post by: mdavlee on January 02, 2013, 04:58:56 pm
I didn't remember how I did that one but I did get some more pictures. I'll try to upload them here before I use photobucket.

Title: Re: Square grind wheel finishes
Post by: 3000 FPS on January 02, 2013, 06:58:40 pm
I like the grind in the first picture.   The last picture or 3rd one looked like it had a hot spot on the cutting tooth.
Title: Re: Square grind wheel finishes
Post by: mdavlee on January 02, 2013, 07:03:13 pm
It may have been burnt when I ground it. I forgot how aggressive the salmon wheel is.