Je viens tout juste de prendre quelques mesures et cela correspond à la taille de la spb 850.
Je pense qu'ils ont juste ajouté un porte axe meule !
À savoir si c'est le même moteur ?

Il est vrai qu'on ne trouve pas grand chose sur la brpd1.
De l'extérieur on se doutait qu'il y avait le moteur avec une poulie et un axe porte meule, mais là on voit mieux avec votre vidéo.
Comment avez vous ces renseignements, vous connaissez quelqu'un qui a cette machine ?
Est ce que d'après vous, ce serait le même moteur que la blademaster classique car sinon, j'avais déjà pensé modifier ma machine...en ajoutant 2 poulies et un porte meule...

As some of us know, there are only two sharpening machine options, if you want to use 3" grinding wheel. Incredible Edger and Blademaster BRPD1. One reason why I end up to IE is that I could not find any user experiences or videos from the Blademaster machine. Even today its extremely difficult to find information about Blademaster machine. To make new potential skate techs life easier, I added some Blademaster photos to Youtube. I hope they help to understand how it works. https://youtu.be/4c9hVxHy7XQ

I think this rail set would be the best for 200€

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.