Clipper Blade Sharpening Hollow Grinding

[nicestman77]

I hollow grind both,but saying that, I get my plates from Poland,machined in the University for Mechanical Engineers,we have our own formula for the plates I use,Treyco plates are ok/good,you will get great success with Treyco plates,but they don't do a lot of blades,the plates I use are 6mm wider, and the quality of the plates I use have a certificate with them,they are made from big ships propeller shafts,cut into biscuits.

Get back if you need anything else.

[netsamsam]

@nicestman77 let's say that hollow grinding the comb(bottom:they are flat or or ignorably hollowed) of a blade set is OK but not the best. And big problem is that covexed plate get damaged faster when it cut flat comb(bottom) part. you know that new plate or resurfacing is expensive. i just think so in theory but no experience.

[netsamsam]

as far as i know, todays, most small blades are hollowground top and almost flat bottom(comb) on a blade set. however, the video shows sharpening the top and bottom at the same time on the same plate. in my understanding, they must be sharpened seperately.

how do you think, niceman? i am starting the business.

[nicestman77]

Please, if you feel you are sharpening the way blade should be sharpened, that is the main thing, you stick to the way you know best.

[netkravler]

It might be coneshaped, but never convexed. I sharpen for a living and if you hollowgrind two pieces of metal and try to make them work together, it will never work. The two pieces must be totally flat, otherwice the very tip of the two blades will snag and not run smoothly. !!!!

[nicestman77]

What country are you in?

I couldn't find it on eBay.

[nicestman77]

Buy the machine you won't go wrong,we will play when you get it.

In the mean time contact ask questions.

[nicestman77]

Hi there, just about to go out from home, you are welcome to contact me skype patrickbutt or colinbut bigpond net au

[Brennan29]

Hi, I am buying a used Treyco on Ebay. Id like to know more about the machine from someone who uses one. Can you contact me and talk to me if I send you my contact info? I wont use a ton of your time. Thanks in advance!

[nicestman77]

The clipper blades are made from carbon steel which will rust with any water on them,once they rust the very edge you are trying to achieve will have pits on the edge caused by the rust.

with this wheel it is convexed,not flat,much like a dinner plate upside down,and the blade has to sit ontop of the ridge so you can get the hollow grind,it has to sit prefectly on the ridge,not a bit forward or a bit back.

I use 180 grit,but other sharpeners use 200>400 grit.

[davetileguy]

Whats the ultimate way to sharpen? could you use watercooled diamond wheels? or how about a milling machine? I'm assuming shears need to be ultra flat as upposed to"sharp". so would a finer grit with a coolant be better? anything to help would be great!

[nicestman77]

This plate is NOT flat,it is con vexed,much like a dinner plate upside down.

That is what gives the hollow grind,you shouldn't assume anything till you find out the facts.

[Allupeenya]

Not even close to hollow grinding,for the fact the flat of the stone is being used as opposed to the outside radius. One more fine Youtube Fail.

[nicestman77]

Ashley, please do a video of your machine, and put it on YouTube.

Or, at lease let me know who machines your plates for you,it is very hard to find someone who knows how to machine them.

[nicestman77]

Hi there, can can you show me what a hollow grind plate looks like.

[aball990]

i have a true hollow grinding plate and i can assure you that the plate you are using is completing flat, even with the supposed pivot...its still being sharpened flat/flat

[nicestman77]

Hi James, Treyco should supply spacers with every machine,but not to worry,they are not necessary/needed,if you like I can measure them,but it would not help you in the long run,and would be very hard metal the right sizes.

The spacers are only good if you are going to machine a lets say machine a Oster blade,but when you was going to machine another brand you could get caught out, because all blade brands are different thicknesses on the bottom plate.I teach sharpeners all over the world.

[nicestman77]

@antheamirhosseini

Hi there, if you go to Google and type in Treyco you find the plate you are looking for.

[nicestman77]

Hi there the machine you are looking at has a convex plate,which machines a hollow grind on the blades.

[thor20014]

how was that hollow grinding? I've been sharpening tools most of my life and I opperate a similar machine and there is no hollow grinding

[aqeelmir]

can i use this grander to sharpning grander to make razzer scissors?

[nicestman77]

@aqeelmir NO

[nicestman77]

Hi there, if you go to Google and type in Treyco you find the plate you are looking for.

[kdee29]

where can i get a magnetic holder from?

[marcos2296]

hi , where i can buy that machine and what the price?

[antheamirhosseini]

hi can you tell me how big the plate is. And is ,the convex 1mm as you say .i have a flat plate grinder but i need to get a honing plate made because in the uk there are no supplyers that i can find

to supply  a plate

[nicestman77]

Plates are 16" wide

[nicestman77]

@antheamirhosseini

Hi there, if you go to Google and type in Treyco you find the plate you are looking for.

[outboundshipping]

this sharpening device cost 1,000's of dollars.

who can afford this unit??

[nicestman77]

Actual fact is cost about AU$3700 to Australia from USA GST/import duties.

Unfortunatlly if you want to do sharpening properly you have to spend that sort of money,

To develop the machine would take a lot of work.

[nicestman77]

Flat sharpening is not very good, this hollow grind the blades scissor,and last a long time between sharpens,

Flat sharpening is old technology.

[nicestman77]

You can but flat is not flat,you have to use a dial gauge to find the sweet spot,on the plate and that is where you must finish on.

No one can machine any plate dead flat.

Hollow grind is new technology it is 100% perfect,flat sharpening gives shearing of the blades and when the space in between the plates teeth worn, it stops working,where as hollow grind gives a scissoring effect,and doesn't stop working,if you give me your email I can send you some pix,thank you.

[T3slaTroop3r]

ahh i need to know where to get one ,

[nicestman77]

The plate is NOT a stone, it is a Aluminium plate machined CONVEX 1mm on the outer side,we use Aluminium Oxide for abrasive, please contact me again if you want to know where to buy from.

[T3slaTroop3r]

WHAT KIND OF STONE SO U USE FOR SHARP

[nicestman77]

Flat hone blades doesn't last as long as hollow hone,flat hone is 30 year old technology,you would have to own both to understand,hollow hone blades last much longer before resharpening is required,it all has to do with the way the sharp edges strike each other,they scissor,where as flat hone only shear until the gap between the 2 plates wear from abrasives(dirt)

Much like how a pair of scissors work.

[porcupine63]

Why can't you just sharpen clipper blades on a flat-hone?