Tachometer Kits / Installs

[tjb]

Nice bench Mark. How about a YouTube tour with all your tool recommendations.

Ditto

 

[Sparweb]

I recently ordered this:

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It should be here fairly soon

 

[TX COWDOC]

Next question: Installation......What is the best way to secure the magnet to the spindle?

 

[DavidR8]

Next question: Installation......What is the best way to secure the magnet to the spindle?

I was planning to drill a hole and just drop the magnet in. Maybe with a dab of epoxy but if it’s a rare earth magnet those things hold fast.


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[mksj]

Depends on what you are mounting it two. If to the spindle, people often just use some electrical tape, but not a long term solution. If a spider, then I drill a shallow hole so it sits flush in the hole and you can use some metal epoxy. Many of the magnets are metric in diameter so need a metric drill to get a press in fit, then I use red Locttite. I no spider I make an aluminum ring and mount the magnet to that., use a small set screw to hold it in place.

 

[NCjeeper]

Next question: Installation......What is the best way to secure the magnet to the spindle?

I just have my magnet in one of the D1 holes. If I need to change chucks I just pluck it out.

 

[TX COWDOC]

Depends on what you are mounting it two. If to the spindle, people often just use some electrical tape, but not a long term solution. If a spider, then I drill a shallow hole so it sits flush in the hole and you can use some metal epoxy. Many of the magnets are metric in diameter so need a metric drill to get a press in fit, then I use red Locttite. I no spider I make an aluminum ring and mount the magnet to that., use a small set screw to hold it in place.

Thanks for the replies. Mark, that is the solution I am looking for. I'll proceed with the aluminum collar / ring. Thanks!

 

[davidpbest]

Here's another example. This is my PM1340. The spider has the magnets for the tach sensor, the tach sensor mounts to a custom ring installed over the spindle end-mount. More details here.

 

[TX COWDOC]

There are 2 wires for power which is typically 12VDC (about 50 mA), so need a small DC power supply or they have 24VAC to 12VDC step down converters that one can use power from your 24VAC transformer used for lights and the contactors. There are 3 wires used to connect to the hall sensor. They are all color coded and numbered so just connect the wires per the instructions.

I have the wire, connectors, and transformer. I plan to rough-in so to speak the transformer so that I can close the panel and finish setting up the lathe this weekend. I will then mount the tachometer etc. at a later time. As you know the electrical panel is a busy place. Any guidance on where on the lathe circuits to attach the 18AWG from the transformer? Thank you!!!!

 

[middle.road]

After seeing the two lathes above I'm going off somewhere and hanging my head in shame...