Spindle Speed Controller Question

[njhussey]

What are you looking to cut with your machine? Have you thought of making a brushless DC spindle like in this thread? I've made one and although not used it yet Jonathan and Mark have used theirs with good effect. They are controlled with cheap servo testers and a brushless Radio Controlled ESC.

[thomashomer1986]

I only plan on cutting wood and maybe some plastics.

I have already read that thread from start to finish which is why my original plan was to make one of those brushless spindles, thats why i made my motor mounts to suit 52mm dia spindle body. However making a spindle now is out of the question as I no longer have access to a workshop. I really do miss the working on the tools sometimes!

[njhussey]

I only plan on cutting wood and maybe some plastics.

I have already read that thread from start to finish which is why my original plan was to make one of those brushless spindles, thats why i made my motor mounts to suit 52mm dia spindle body. However making a spindle now is out of the question as I no longer have access to a workshop. I really do miss the working on the tools sometimes!

I have this one just hanging around gathering dust.....

[thomashomer1986]

How much would you be willing to sell it for Neil? Because something like that would be perfect for my machine and I still have the option upgrade to a water cooled spindle later on when I have more money.

What are the sizes/specs?

[njhussey]

How much would you be willing to sell it for Neil? Because something like that would be perfect for my machine and I still have the option upgrade to a water cooled spindle later on when I have more money.

What are the sizes/specs?

Good question on both counts....the motor specs are in the spindle thread I think, 1.7kW @ 60A max springs to mind and a max speed of approx 6500 rpm @ 24v....pm me with an offer and I'll have a think if what I want for it...

[thomashomer1986]

Thanks Neil I'll have a look through the thread then and let you know.

Is 6500rpm fast enough though? I thought much faster spindle speeds were needed for wood carving?

[thomashomer1986]

Thanks for the offer Neil but i think i'm going to go with the water cooled spindle. I think the 0.8kw spindle would be fine for my machine but as the 1.5kw is only about £5 more through the same supplier on ebay i might just go for that one.

Thanks again for everyones help, i will more than likely be posting soon with questions on how to wire it up lol.