"high" speed spindle with cad model

[Thorpydo]

Hey,

I'm about to start a project and would like some input before I put things in motion.

The belt driven spindle bypasses the gearbox and has top speeds of 2800 or 5900. Obviously only one belt is used at a time. The thickness is quite a bit less then that of the stock belt which is a bit discerning but I figure if something is going to fail, the belt should be the first thing to go. This belt is .354" and the stock is .545". I couldn't fit two bigger belts stacked like in this design and I couldn't get the speed range I wanted without changing the motor gear.

Coolant flows into the bottom left of the heatsink and two hoses will come off the bottom right side. The hope is to prevent the spindle from overheating.

The cad model is still a work in progress. Using solidworks 08.



Thanks for the peak

[cadmonkey]

Looks like a sound idea - will you share the plans once you complete them?

[Thorpydo]

I just bought a new camera and I can see that the camera and I are not mixing well. I wonder what the problem is.

The model is finalized.I went ahead and bought a heatsink extrusion to cut down on machine time. The gasket was stenciled in with a laser engraver and then I used an exacto knife to cut it out. I might try again with the laser engraver to see if I can get all the way through the rubber.

Whats wrong with the picture with the saw in it?

[Thorpydo]

Cheers.

[JpBinc]

Looks good to me!

[MRM RCModels]

I like the idea. Just signing up.

[SpeedsCustom]

Very nice pieces you got there.


-Jason

[Teyber12]

What about galvanic corrosion?

the drawings and idea look very nice

[Thorpydo]

Got the heatsink pretty much setup today.

I need to order a couple hoses to mount and make a brace on the top and bottom to hold the acrylic to the gasket better.

Bonus picture of a touch probe I'm in the process of setting up.

Edit: Teyber, can you elaborate on galvanic corrosion? I'm unfamiliar with what that is?

Thanks guys!

[Teyber12]

http://en.wikipedia.org/wiki/Galvanic_corrosion

I am just realizing how your system works though- its also the flood coolant! genious! i thought you had a closed cooling system for the head and if you have dis-similar metals in a closed loop(with a conducter between) the metal starts deteriorating.

[pete from TN]

So basiclly this unit is strictly to keep the casting cool so the bearings stay cooler is that right? I know that the plexiglass looks cool but you could just make the cover out of aluminum and machine some more cooling fins into it and be even better off. Do you have any way of checking to see how much cooling you are actually getting. I suppose that you are doing a belt drive conversion on this to do all this modification no? Nice work and good idea...peace

[SScnc]

Thorpydo,

Where's the outlet ?

I thought the idea was to have coolant flow though your heat sink and out through the coolant nozzle onto the cutter and stock.

Maybe I'm misunderstanding.