Quote from: Kaitsu on November 11, 2024, 11:20:50 AMQuel type de courroie dois-je utiliser

I think that those who have an IE should try putting an O-ring in place of the original belt because I have a friend who has an HSS drill/countermill sharpener and who does with that.
And as it is quite elastic I think there is less need to tighten the original belt.

Quote from: Kaitsu on November 11, 2024, 11:20:50 AMcomment obtenir des roues de poulie avec des diamètres corrects,

This is a bit complicated, I need to reread the exchanges on the IE, how many revolutions should the wheel holder rotate?

Quote from: Kaitsu on November 11, 2024, 11:20:50 AMComment fabriquer un système de réglage de la hauteur à 2 points pour un porte-patin

I will base myself on the blademaster trolley holder that I already have and which I would place on a sliding table lengthwise and widthwise (as in the previous photos)

Quote from: Kaitsu on November 11, 2024, 11:20:50 AMComment construire un système de dressage au diamant ?

J'essaierais de m'aider du systéme blademaster qui serait je pense le lus simple

Quote from: Kaitsu on November 11, 2024, 11:20:50 AMConstruire une seule machine coûte peut-être plus cher que d'acheter un nouvel IE ou BRPD1.

yes but how much does the IE cost (4500e!!,,) and where can we find it?
When the blademaster is even more expensive I think (6500€!!??) right?

Quote from: Kaitsu on November 11, 2024, 11:20:50 AMSi vous envisagez d'utiliser un système de poulie à courroie, la vitesse du moteur électrique est généralement augmentée en utilisant une poulie plus grande à l'extrémité du moteur que dans l'arbre de broche.

yes, I understood, and I just did some calculations on that. and if I could use my current blademaster to be able to do a few things that would be great! But that would mean putting a pulley just smaller than 3" on the spindle shaft and maybe changing the original motor with a variator to find the right rotation

Quote from: Query on November 11, 2024, 11:59:16 AMMarc, avec quel outil aiguises-tu maintenant ?

I have been sharpening since I started (2 1/2 years) with an 8" Blademaster and I can sharpen very well. I would just like to try a 3" at a lower cost!

Marc, what tool do you sharpen with now?

You have started your designing from linear guide rails, just like me. When I have started to think about how to make spindle cartridge where to mount wheel, things get complicated. What kind of belt I should use, how to get pulley wheels with correct diameters, how arrange belt tightening system? How to make 2 point height adjustment system for skate carrier? How to build diamond dressing system?

In this stage of my plans, motivation has typically dropped close to zero. I could make drawing for all these individual components, but ordering machining and heat treatment etc. would be very costly for single items. Most likely there is also need to tune design after first prototype, which increases costs dramatically. Building only one machine costs possibly more that buying new IE or BRPD1.

By the way...
If you are considering to use belt pulley system, typically electrical motor speed is increased by using larger pulley wheel in motor end that in spindle shaft. If so, this means that your electrical motor needs to have enough high torque. If your bicycle has large gear in pedals and small gear in back wheel, its heavy for cyclist. Same principle applies to sharpening machine.

I can't help with construction ideas, as I have neither engineering training nor machine shop experience.

But AFAICT, people who try to do as good a job as possible spend a lot of time centering the wheel on the blade (at both ends, and in the middle, if possible), to try to make the edges of equal length.

Is it practical to add a mechanism that speeds that up, or at least measures whether they are centered?

Also, at least one figure skating blade holder is designed to temporally straighten the blade (if it is warped). I guess they cost more, but they seem like a good idea, because warped blades are hard to sharpen well - if you center the wheel on the blade at both ends, it will be off center in the middle. (I'm not sure if there are any that can hold hockey blades too - which matters, because hockey blades are somewhat frequently warped due to collisions with other blades.)

Many sharpening machines include an extra fixture that straightens blade permanently, by bending it a little in the opposite direction. Blades skate better (with substantially less friction) if they are straight. Though I was told it is risky, and needs to be discussed with the skater - the tech I discussed it with said that the blade sometimes breaks when the warp is over about 1 mm. (In fact, when new blades were sent to him warped from the HD Sports factory, he returned them, at which point HD Sports sent them to a less picky dealer.)

Its possible that they use same motor housing casting in several motor units. That is possible if they remove the nozzle what 3" wheel spindle cartridge requires by machining. However taking in account that they probably sell mainly 8" versions, it would costly to machine this nozzle away from 90% of the castings.

I have no idea what electric motor they use.

I sketched this rough 3D model when we were planning to make custom made dust hood for it.

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