digital caliper...........
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| Dial gauge http://www.kawi2strokes.com/forum/viewtopic.php?f=2&t=4566 |
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| Author: | Jim [ Sat Oct 06, 2012 9:19 am ] |
| Post subject: | Re: Dial gauge |
I agree with the old instruments over cheap new ones. I have several Starrett indicators, mics, etc.. that came from flea markets. I think the only time I've bought that kind of stuff new is when the company I was working for was paying. |
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| Author: | Carlos [ Sat Oct 06, 2012 7:01 pm ] |
| Post subject: | Re: Dial gauge |
I also made mine from an old spark plug. Remove the ceramics and machine a bushing to fit the dial indicator stem and make an extender for the ball tip to fit cyl. head to piston TDC distance. Chin. crap indicators are O.K. for the purpose and you save a lot., but I really love and miss the old Swiss made TESA and similar brands from the past, high quality instruments........ |
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| Author: | Jim C [ Sat Oct 06, 2012 7:57 pm ] |
| Post subject: | Re: Dial gauge |
My dad worked at Brown and Sharp as a kid. I too like the old US gear like B&S and Starret (a few micrometers of each) I think that the high end Mitutoyo is also great and my favorite vernier caliper. |
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| Author: | Jim [ Sat Oct 06, 2012 10:49 pm ] |
| Post subject: | Re: Dial gauge |
Jim, so far my favorite Vernier is a Scherr-Tumico, made in St. James, MN, because the Vernier scale covers 50 thou instead of the usual 25. |
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| Author: | Jim C [ Sun Oct 07, 2012 10:23 am ] |
| Post subject: | Re: Dial gauge |
Not familiar with that brand Very cool that it is US made |
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| Author: | Ja-Moo [ Sun Oct 07, 2012 10:37 am ] |
| Post subject: | Re: Dial gauge |
digital caliper...........
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| Author: | Chris [ Mon Jun 05, 2017 7:28 pm ] |
| Post subject: | Re: Dial gauge |
Ja-Moo wrote: digital caliper........... Found this old thread. What do you mean John? |
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| Author: | JRD [ Mon Jun 05, 2017 8:41 pm ] |
| Post subject: | Re: Dial gauge |
Chris wrote: Ja-Moo wrote: digital caliper........... Found this old thread. What do you mean John? As a machinist, I'll answer. Various types of calipers have different ways to read the measurements. You have a vernier scale where you match up lines to get the measurement. Then there are dial calipers where you have a both a scale and dial for the measurements. A digital caliper has a read out where you read an actual measurement number. Vernier scale is "old school" but requires no batteries. A dial caliper is susceptible to chips or debris getting in the rack and giving a bad measurement. Digital calipers require batteries or good light to work. They are also easier to get a bad reading with. |
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| Author: | Jim [ Mon Jun 05, 2017 9:29 pm ] |
| Post subject: | Re: Dial gauge |
Good description, Jeff. Some have depth gauges built in, usually the dial and digital types, which is the type John likes to use for BTDC measurements. My preference is for a dial indicator with 0.001" resolution and 1" travel, in a spark plug adapter. I think that's what the original post was referring to. |
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| Author: | Ja-Moo [ Mon Jun 05, 2017 9:39 pm ] |
| Post subject: | Re: Dial gauge |
Here is the vid Chris...... https://www.youtube.com/watch?v=iKcyiDS27J0 |
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