or rather this surfacing plate in smaller size

Here are some of my ideas:
a motor with pulley (approximately 75 mm), O-ring (green in the photo) as a belt, a 3" grinding wheel axis with a pulley (approximately 20mm), a table sliding lengthwise (like woodworking machines , and other slides in the perpendicular direction.
I would think about keeping a skate holder (blademaster or other) that I would put on the entire sliding system.
and I would also have imagined the same dressing system for the blademaster grinding wheel..

thank you katsu for your serious help to improve skate sharpening around the world.
I didn't think about creating this new topic, because it was also a bit about spare parts and improving IE.
I don't know if this would be of interest to many people, but I think it's still doable for sharpeners who have an 8" machine and who like precision and I know there are a few of us on the skating forum.
I have had many ideas for a long time to do this but I really want to make this sharpener

New tread opened to discuss this topic at own thread.

Adminstrator/moderator
Could you kindly move post #63 - #67 from https://skatingforums.com/index.php?topic=8687.50 to this thread?
Thank you!

kaitsu:


yes, I would like to mount a pulley system and I thought that 120w could be enough. That was my basic question. in fact this motor is the one you replaced for the cross grinding?

So ok, I'm going to head towards the engine that you showed me as an example. and yes, I would like to keep it as simple as possible, base myself on the same system as blademaster so that I could use the diamond dressing system, which I already have.
 And in my idea it is to make a guiding system like the IE skate holder (with rails for woodworking machines)

could you help me find the parallel axis (spindle with bearing) which carries the grinding wheel? That's where I can't find it!
I understood that I needed a 75mm pulley on the motor axis and 20/25mm on the axis which carries the grinding wheel.

I recently sharpened the skates of a hockey player who has been skating for 30 years and has never had skates as sharp as they are now. and I'm proud of that.

At the moment, all I can think about is making my 3" sharpener to try because I have no other solution!

Marc,
I think your plan has few obstacles.
1. These 3" bench grinders are not very powerful. I would say that 120 Wats may not be enough.
2. Grinding wheel is same size or smaller than motor housing, so your skate holder might collide to it. See attached sketch
3. How to build diamond dressing system to such a small electric motor?
4. Bearings in these cheap bench grinders are not so good and shafts does probably have radial runout. You may have challenges to get good surface finish.
5. How to mount motor enough rigidly in to your machine? Motor bracket is probably made from plastic.
6. If you are planning to use belt pulley system, why to use so small electric motor? You will have same issues as in bullet #3 and #5.

Its easier to take ideas for your own design from the Blademaster 3" machine than IE. Motor could be example this? https://a.aliexpress.com/_Ewli0O1

Little edger uses this kind of 3" bench grinder motor. For gross grinding its enough powerful. I have replaced original 110V motor in my LE with 220V motor. 220V motor I took from very similar bench grinder.

Quote from: AlbaNY on November 08, 2024, 04:15:41 PMPersonnellement, je prendrais le taureau par les cornes et j'achèterais pratiquement n'importe quelle machine ordinaire non Sparx. Je suis vraiment intéressé de voir ce que vous proposez.

no albany, I have already posted here and there. I already have a Blademaster8", and I can sharpen it very well.
but I want to be able to build my own 3" sharpener!
I am surrounded by people who work with steel, for that.
to start I need to find a motor and I think the one I showed in the photo could do...
but I need to know your opinion and I would like to know what would be the other part that carries the grindstone (in French a 'claw')
by putting a motor with a variator, I could regulate the rotation speed!
I also have the idea for the cart that will move.
I couldn't find an IE so I'm going to make my own machine
the blademaster 3" is way too expensive

Are you planning to mount that somehow and for the operation to be horizontally oriented?  I'm curious what kind of skate clamp you'll get for building up your own machine.  (I admit to not reading back to see if this was covered.)
I'd bite the bullet and buy basically any non-Sparx regular machine, personally.  Definitely interested in seeing what you come up with though.

Quote from: Kaitsu on September 26, 2021, 09:58:53 AMe crois que la question était pour moi. J'ai acheté Little Edger + transformateur 220V chez Sid. Little Edger est disponible uniquement avec un moteur électrique 110V/60Hz. Après avoir testé plusieurs fois le Little Edger original, je me suis rendu compte que je n'aimais pas utiliser de transformateur. Brancher des câbles ici et là n'était pas ce que je voulais, j'ai donc remplacé le moteur par moi-même pour la version 220V/50Hz. Les deux moteurs ont un bouton de réglage de la vitesse. Français Fondamentalement, Little edger utilise un moteur qui peut être trouvé sur Ebay avec le mot de recherche 3" 120w mini banc meuleuse

our ice rink has finally opened 1 week ago (a little late)!
I'm starting to have a lot of skates to sharpen!
I think that one thing at the moment is to build my own machine because I would never find this famous second-hand IE and let's not talk about it new:

So could this engine be a good start?
But also could you help me find a pulley that would fit this motor and the wheel holder (bearing):
I believe that the motor pulley is 70mm in diameter and 20mm pulley on the wheel holder?

I looked online, and a remarkable number of people complain about printer scaling problems. The incorrect scaling factors are said to vary printer to printer.

But one of the claims is that at some point, updating Microsoft Windows may lose the ability to do 100% scaling correctly. Too late for me to undo that.

Also some suggestions were to update the printer driver. But Samsung printer support has been taken over by HP. And various reports online claim that if you let HP update your printer drivers, you will need OEM Print cartridges. I wonder if HP already noticed my generic toner cartridges, and messed up the scaling to punish me.

So the best possibility, if I want to use my printed arcs as a measurement tools, is to measure the inch scales as well as I can, and compensate for scaling problems myself. I should warn people such problems occur, and add a correction option. Which I have now done in the updated web page.