Shopsmith Forums

wa2crk wrote:Everett
How about something like a computer muffin fan over the inspection port. It could run anytime the AC switch is on. There would still be a requirement for creating a place where some additional air could be pulled into the headstock. However someone mentioned that the fan on the motor moves a good amount air but some cooler air has to be pulled into the interior to reduce the temp.
Bill V
PS I think that the grounding of the machine through the power cord is sufficient for static discharge protection.

I am not a computer guy, but from my very limit experience, I would think there are a more higher volume fan then a computer fan, I mean that is better then nothing, but is there something better? Just my 2 cents worth.

You want a larger fan?

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JPG wrote:You want a larger fan?

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A bit extreme, over the top tonight JPG Into that KT/KY Mason Jar?

ERLover wrote:

JPG wrote:You want a larger fan?

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A bit extreme, over the top tonight JPG Into that KT/KY Mason Jar?

No moonshine tonight, too cloudy!

That's enough! Stop it, you guys!

charlese wrote:That's enough! Stop it, you guys!

Will do full moon was a few days ago on the summer Stolistis.

What direction does the PP fan direct the air?

JPG wrote:What direction does the PP fan direct the air?

The fan is located at the front of the headstock, (below the spindle)
At this time can't say if it blows toward the motor or away from it. But to hazard a guess, I'll go with toward the motor.

charlese wrote:

JPG wrote:What direction does the PP fan direct the air?

The fan is located at the front of the headstock, (below the spindle)
At this time can't say if it blows toward the motor or away from it. But to hazard a guess, I'll go with toward the motor.

I would think if there is an in take front of the motor you would want a fan to suck/induce a draft to the outboard side, the reason I say that is for most air exchange it is easier to suck then blow, an yes JPG will get all involved here on fan types ext, but to move air against its natural direction takes much more force, example, you have a Leaf Blower 2 Million CFM, and are trying to blow leaves against a 10 MPH breeze, you will loose on pure volume of air. You may get some, but the others are just going around you

According dmelensons post at the beginning of the thread he said that he ran the machine with the belt cover off and there was a lot of air flow coming from the unit so I will assume that the air flows from the front end to the back end towards the auxiliary shaft. If the air flow is sufficient with the cover removed then it should only be necessary to add some flow through the cover. Insufficient air flow will only cause the air inside the headstock to stagnate and the heat will rise to an unacceptable level.
It is similar to an HVAC unit in that a room has to have a cold air inlet and a warm air return.
I don't run my machine at the 9000 RPM limit much at all so I am not really concerned. If I were moved to make a modification I would seal the logo plate on the rear of the headstock to prevent leakage and to direct any air flow over the motor and the electronics package.
Again, JMHO
Bill V