2016 POTD Thread Archive

I finally got my lathe on Saturday (six weeks after finding out my brother no longer has room for it at his house, and other brother felt it made more sense in my hands than his), and both my scrap aluminum and scrap wood stock were getting out of control, so I melted a bunch and poured myself some practice lathe stock. :)

85af35ad3197e8286c522b9f767ab7ae.jpg

a5a0bf6b5ca024827b8ea48d7c0a6bef.jpg

85af35ad3197e8286c522b9f767ab7ae.jpg

a5a0bf6b5ca024827b8ea48d7c0a6bef.jpg

85af35ad3197e8286c522b9f767ab7ae.jpg

a5a0bf6b5ca024827b8ea48d7c0a6bef.jpg

85af35ad3197e8286c522b9f767ab7ae.jpg

a5a0bf6b5ca024827b8ea48d7c0a6bef.jpg

85af35ad3197e8286c522b9f767ab7ae.jpg

a5a0bf6b5ca024827b8ea48d7c0a6bef.jpg

85af35ad3197e8286c522b9f767ab7ae.jpg

a5a0bf6b5ca024827b8ea48d7c0a6bef.jpg
 
Nice score on the Doall. Your going to have to put a lot of frosting on those cupcakes to make them a taste treat. Mike
 
That can of beans may be a bit hard on the teeth. Nice, what size barrel and what fuel. I need to build a new one and need ideas. Looking for dual purpose, Melting metals and heating steel.
 
I'm curios of the measurements of those China blocks... let us know how a few of them proof out to the tenth
WHAT A LOUSY CROCK OF )(*%%&*^&%!!!!!

I first tried measuring a couple of the blocks at my desk last night, using a 0.0001" Brown & Sharpe mike. I expected the mike wouldn't be precise enough to see the tiny (spec'd at +/-0.0001") variations. Hah! Disappointingly easy to see the errors. Several blocks were out of spec by 0.0002", some were worse. At least one block had visible raised burrs on one of the edges. Several blocks had measurements that varied across the face, indicating out-of parallel. Most blocks would not slide smoothly against each other, indicating more raised burrs (possibly around the threaded center holes?)

Today I went to my surface plate. I used a 1" mike standard to zero a Mitutoyo dial test indicator, then checked both 1" blocks and several stacks that addd up to 1". YEEEECH!!! And in addition, not only were the threaded holes different than advertised (M6 instead of ¼-20 as stated by Shars), but the hole in the .300 block was about 1.5º out of square. The attached screen shot shows the results in detail.

I've sent two messages to Discount Machine asking what he proposes to do about this load of !(&%#^%&*^. Luckily, I did go through eBay, instead of buying direct, so I'm pretty well protected. If he does right by me, I'll give him an OK rating. Nevertheless, y'all are family, and I decided to give you the cautionary word.

As for you, Chevydyl, I'm beginning to wonder if your post was what brought on this bad karma ;~)
Test results Screen Shot.jpg
 
Bahahaha, MY post? Hahah, so, what is the claimed accuracy by shars?
And I asked because I knew what you were to find, me, I'd rather buy used US made blocks that mic to a tenth
 
Bahahaha, MY post? Hahah, so, what is the claimed accuracy by shars?
And I asked because I knew what you were to find, me, I'd rather buy used US made blocks that mic to a tenth
They're specified to be +/-0.0001" Big laugh!
 
So a 2 tenth allowance, the 7 is pretty darn out there, they are usually pretty good with returns, let us know
 
Back
Top