where have you been all my life? this is fantastic.

Love your honesty...'useless tools'! And then how the tool can be made useful. Thanks!

@shopandmath

3 жыл бұрын

thank you ray

Another excellent presentation, Thank you.

@shopandmath

3 жыл бұрын

Thank you for taking the time to comment much appreciated Ray

I have seen others use squareness comparators, like Steven Lang (Shark River Machine) but just haven't gotten to making one up. I like the idea of a 3D printed setup like you show, but that will have to wait a few months for the shop budget to allow for a printer, lol!

Excellent video about how to check for squareness. Looking forward to the gen 2 squareness comparator tool video!

@shopandmath

3 жыл бұрын

its coming soon 8 week or sooner

@danielmatthews8475

3 жыл бұрын

Also can't wait for the Gen 2 indicator. That thing looks awesome!

@shopandmath

3 жыл бұрын

@@danielmatthews8475 its coming soon just swamped with the indexing head simulator this Friday is the second video of the meg base :-) Ray

This is exactly what we do at my work, every time we need to square up a precise block. We block every single part before machining, so that's pretty often. The only thing I don't believe you mentioned is that what you measure is only the precise measurement on a square block. A 6x6" block measuring .002 out is not the same as a 3x12" block. I'll take a look now at your other videos to see how you address fixing it now.

Awesome video Good information for a new apprentice

@shopandmath

3 жыл бұрын

Glad you liked it

Fantastic!

@shopandmath

3 жыл бұрын

thank you Ray

Thank you i learned something new today

@shopandmath

3 жыл бұрын

thank you I love positive feedback Ray

Looking forward to seeing that other comparator.

@shopandmath

3 жыл бұрын

it works like a dream I have made 8 different prototypes over the past year I will be posting the stl files so every one can print the current model cost me $9.42 CAN to get printer trying to come up with a version that does not require machining and a total cost under $20 Ray

Great video!

@shopandmath

2 жыл бұрын

Thank you and thank you for taking the time to comment much appreciated Ray

@shopandmath

2 жыл бұрын

I just posted a new squareness comparator video kzread.info/dash/bejne/gHqYqMuEibyfhLQ.html This is a 3-D printed squares comparator

A common way is to flip the part over so the top is now on the surface plate and then check the same side again. This will also show double the error, it negates any taper between the oposite measured sides if they are not parallel.

@shopandmath

Жыл бұрын

That’s a good point

@robertfontaine3650

Жыл бұрын

Very nice. Once you have achieved flat you can achieve square without assuming parallel.

@machinists-shortcuts

Жыл бұрын

@@robertfontaine3650 Is this possible without a reference square.

@robertfontaine3650

Жыл бұрын

@@machinists-shortcuts You can measure squareness without a reference square but to do so requires 2 flat, parallel planes between the measured plane and a reference surface. The top and bottom faces touching the surface plate MUST be parallel. So you can measure squareness without a reference square by flipping the piece top for bottom .

@machinists-shortcuts

Жыл бұрын

@@robertfontaine3650 Ok? I'm confused, your earlier post suggested that you don't need parallel faces.

Are you still planning on showing the upgraded version? I'm super interested. Well done video.

@raysfix

2 жыл бұрын

Yes it’s in the editing stages I have the new version ready to go it’s been tested printed and it’s awesome Coming soon Thank you so much for your patience much appreciate it and thank you for commenting Ray

@shopandmath

2 жыл бұрын

I just posted a new video and I posted the STL files so that you can make one yourself If you like this video share it with your friends kzread.info/dash/bejne/gHqYqMuEibyfhLQ.html

Great video. Personally would use a better stand but thats just me. Well done

@shopandmath

3 жыл бұрын

Fair enough!

I am in the process of scraping in a master square and want to build a surface guage next. Did you post the improved gauge video with the 3d parts?

@shopandmath

2 жыл бұрын

I am still working on it coming soon :-)

OK.....so all I need is a plain round bar...... a piece of 10mm round HSS will do....... in the front of my scribing block and I have an instant squareness comparator......that beats having a curved surface and it's readily available.............sometimes the simplest works best......and a piece of round bar faced flat on one end makes a good and true cylindrical square that is just as good as the most accurate square you can get and is easy to make........splitting hairs is not on my to do list.

On your first method. That only works if the block is parallel doesnt it?

@shopandmath

3 жыл бұрын

You cannot check squareness on any block if it is not parallel first You are correct the block must be parallel before checking for squareness Ray

@richardchandler259

3 жыл бұрын

@@shopandmath Method #1 is not quite correct. Measuring 180 degree opposite sides can provide an accurate squareness reading only if the two sides are exactly parallel! Imagine if both sides sloped exactly the same - for example - each side sloped exactly 5 degrees where each side was wide at top and narrow at bottom. When you rotate 180 degrees the indicator readings would be the same for the sloping (and out of square) sides.

@shopandmath

3 жыл бұрын

you are correct before checking squareness we must check parallelism I will be editing the video the add this in (one or 2 weeks) thank you for commenting Ray

@theradarguy

3 жыл бұрын

@@shopandmath then how would you check a triangle?

When measuring a front and a back side, you are assuming those sides are parallel to each other. This is a vital prerequisite. Same for dividing the difference in two. Only when you know the sides are parallel.

@shopandmath

Жыл бұрын

You shouldn’t assume that the sides are parallel You have to check you cannot have squareness without parallelism

How is sixteen and one-half divided by two equal to eight and one-half?

@shopandmath

20 күн бұрын

Yes, someone else’s commented on that as well. Thank you for catching it and thank you for taking the time to comment. It is much appreciated.

Half of 16.5 is not 8.5. Method is only good if accurate width and parallel measurement is made first, right?

@shopandmath

3 жыл бұрын

in a week or so will fix the mistakes and re post and will include parallel check first :-)

@cogentdynamics

3 жыл бұрын

@@shopandmath sorry if I sounded critical. I enjoyed your video. I am bad at math and that part in your channel title is enough to scare me away 😋. That I caught you in a math error made me chuckle.

When I went to school 16 1/2 or 16.5 ÷2 was 8 1/4 or 8.25 not 8,5

@shopandmath

20 күн бұрын

Didn’t realize I made that mistake. Thank you for pointing that out. It is so important that people comment and also that other people read the comments to see mistakes in the video.

Just grind a flat on a 3/4 inch bearing ball, put it in the front fee and you can swing an arc, the fact that you do not have Starrett or Brown & Sharpe surface gages says something as telling as you think they are useless.

@shopandmath

3 жыл бұрын

Hi Dennis I love high end tools but I would rather spend the extra money to upgrade a micrometer or low end gauge blocks (depending on your trade) in my opinion a surface gauge is not worth the investment over the next couple of weeks-months I will be posting plans and stl files for the best squareness comparator it is 3D printed . It will outperform the $1500 one we have in the shop and cost less than $20 to make Ray