HELP! Need a mechanical hand held Tach

[redneckhillbilly]

anyone have a recomendation for a hand held mechanical taxhometer? I need to measure RPM's on a shaft for a circular sawmill.

I would like something quality, not a cheapo, thanks in advance.

 

[EFSM]

We have an old one from Briggs and Stratton that works well. Could you use a diesel tach that uses a reflective sticker to read rpm’s? I think that would be more satisfactory.

 

[Junk Meister]

FOR a circle sawmill and need to read the mandrel speed/RPM?
I Prefer the STEWART WARNER handheld , it is mechanical. I have used them for a long time. Loaned one once to a friend (a know it all DANDEE)
I told him to be sure to have it held in a safe firm way or he could get hurt or mess up a not so cheap toy..
I have it with his name on a post it next to my tool rule magnetic sign. He doesn't come around so often. Not all Bad.
Vintage Stewart Warner Mechanical Hand-Held Tachometer 4000 RPM
Ebay
The rubber tips get hard as they age and there are a few shapes/attachments. If your mandrel has a centering point in it (most of them do) I use the pointed rubber tip.

 

[redneckhillbilly]

I used tp have one years upon years ago, but it has been lost somewhere into the abyss, its not something i need right away, but I need to get accurate measurments of the arbor speed for a circular sawmill me and my cousin are building, i staryed a thread a few months ago when we fished some parts out for it, Im going to update that thread later this week when the detroit 4v71 shows up.

 

[Junk Meister]

I used tp have one years upon years ago, but it has been lost somewhere into the abyss, its not something i need right away, but I need to get accurate measurments of the arbor speed for a circular sawmill me and my cousin are building, i staryed a thread a few months ago when we fished some parts out for it, Im going to update that thread later this week when the detroit 4v71 shows up.

I saw one on the bay for $20.00 No tips and not new looking Good place to start.
What size mandrel / gauge and tooth pattern is YOUR blade? Belt drive I assume. a 471 will cut some lumber>
I had a guy in Creston Iowa wanting me to hammer his blade. He had a 371 Detroit Belted to a 2-7/16" mandrel 60" 8/9GA F pattern blade turning 550 RPM He was trying to paper washer the loose collar (4" collars don't do well on A 60" blade) because the blade was changing dish when he snugged collars to the blade. I drove 100 miles to give him advice that could have started on the first phone call.
Maybe asking to much too soon. I assume you have it figgered out . I haven't messed with sawmills for a while and it does get lodged in my head in spells. Good luck and enjoy your project.

 

[lehman live edge slab]

I have used a Briggs and Stratton vibri tach many times and they seem to work well. Cheap and supposedly works on anything that rotates.

 

[lehman live edge slab]

This is the one I have