Squareness gauge

[Andy ShepherdsonParticipant @andyshepherdson55441]

Work related so sorry. The object in the photo is called an Indi Square and we use it to check the squareness of a part relative to its mounting surface.

I need another one and contacting tool suppliers they have both offered height gauge but i doubt it will be that accurate. We calibrate the Indi square to 2 tenths over it 12" travel. Any ideas anyone,

[Andy ShepherdsonParticipant @andyshepherdson55441]

[Michael GilliganParticipant @michaelgilligan61133]

< Drool >

Have you considered using optical metrology ?

MichaelG.

.

https://www.taylor-hobson.com/-/media/ametektaylorhobson/files/product-downloads/electronic-levels-and-clinometers/alignment-systems_lowres_en.pdf?dmc=1&la=en

.

Edit: https://store.gaging.com/indi-square

Edited By Michael Gilligan on 26/01/2021 14:51:54

[Brian HParticipant @brianh50089]

They're expensive aren't they? Mind you, everything's expensive to a model engineer.

Brian

[MichaelRParticipant @michaelr]

Available in the United States Link looks a expensive tool.

MichaelR

[Tony Pratt 1Participant @tonypratt1]

Posted by Andy Shepherdson on 26/01/2021 14:42:05:

Work related so sorry. The object in the photo is called an Indi Square and we use it to check the squareness of a part relative to its mounting surface.

I need another one and contacting tool suppliers they have both offered height gauge but i doubt it will be that accurate. We calibrate the Indi square to 2 tenths over it 12" travel. Any ideas anyone,

There is no doubt a height gauge will not be good enough you will have to pay serious $$ or use a cylindrical 'square' or similar.

Tony

[old martParticipant @oldmart]

A quality height gauge would be straight enough, but will lack the fine adjustment for the squareness. I wonder if a base could be made incorporating the adjustment for a height gauge to mount on?

[Tony Pratt 1Participant @tonypratt1]

Posted by old mart on 26/01/2021 15:24:59:

A quality height gauge would be straight enough, but will lack the fine adjustment for the squareness. I wonder if a base could be made incorporating the adjustment for a height gauge to mount on?

I disagree, a height gauge is not designed or manufactured to use as a top quality squareness comparator, my opinion others will maybe differ. .0002" over 12" is going some.

Tony

[old martParticipant @oldmart]

Maybe not as you say, but it could be checked at the desired top and bottom heights and adjusted to be true at those points. Thats what that granite square is there in the picture for.

[DC31kParticipant @dc31k]

Posted by old mart on 26/01/2021 15:44:10:

…it could be checked at the desired top and bottom heights and adjusted to be true at those points.

You are correct, providing that squareness is needed to be checked in only one place. On YT, both OxTools and Stefan Gotteswinter have shown versions that do this.

On the other hand, if you need to sweep from top to bottom checking squareness, then the height gauge may not be good enough.

https://ecatalog.mitutoyo.com/Square-Master-Series-311-SquarenessStraightness-Instrument-C1825.aspx

https://www.kunz-precision.ch/en/products/squareness/SQUARE-check

[Andy ShepherdsonParticipant @andyshepherdson55441]

Posted by DC31k on 26/01/2021 16:17:31:

Posted by old mart on 26/01/2021 15:44:10:

…it could be checked at the desired top and bottom heights and adjusted to be true at those points.

You are correct, providing that squareness is needed to be checked in only one place. On YT, both OxTools and Stefan Gotteswinter have shown versions that do this.

On the other hand, if you need to sweep from top to bottom checking squareness, then the height gauge may not be good enough.

https://ecatalog.mitutoyo.com/Square-Master-Series-311-SquarenessStraightness-Instrument-C1825.aspx

https://www.kunz-precision.ch/en/products/squareness/SQUARE-check

I have just sent an email to Kunz, looks just the job. Thanks

[old martParticipant @oldmart]

The Kunz Square Check 350 looks like a winner, but how much will it cost?

[Tony Pratt 1Participant @tonypratt1]

Posted by old mart on 26/01/2021 18:40:22:

The Kunz Square Check 350 looks like a winner, but how much will it cost?

I was thinking that & will they ship to the UK? it will be interesting to get the answer[s]

Tony

[Andy ShepherdsonParticipant @andyshepherdson55441]

Posted by old mart on 26/01/2021 18:40:22:

The Kunz Square Check 350 looks like a winner, but how much will it cost?

I’m thinking £2000 ish

[Andy ShepherdsonParticipant @andyshepherdson55441]

€3500 plus carriage and another €58 for a cardboard storage box. Ouch

[Tony Pratt 1Participant @tonypratt1]

Posted by Andy Shepherdson on 27/01/2021 15:46:59:

€3500 plus carriage and another €58 for a cardboard storage box. Ouch

You may get charged VAT etc etc, who knows?

Tony

[old martParticipant @oldmart]

At that rate, paying the duty and VAT from the USA for another indi-square would be a consideral saving.

[David George 1Participant @davidgeorge1]

Here is the square checker I used and still have. They are bottle squares and the biggest at work was about 8 inch diameter and about 2 feet long. With a touch of engineer's blue they can check to within a few tenths if a thou. Here are my three diferent sizes I still have.

David

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