What Did You Do Today

[PJB]

I installed a set today.   Can’t wait to test it out!!!! 

https://youtube.com/shorts/xjFraL7fL3M?feature=share

Ok - really just supervising an oil change with my son before he heads back to school. 


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[4GSR]

Okay, I didn't fall off the Turnup truck yesterday.... But WTF!? Dropping bed springs into the engine cylinders to improve engine performance???  Yeah, right.

[Carpenter84]

Ya I've seen that guy before. Really had me going for a bit. He operates a pretty high end car shop, BMW, Mercedes, Bentley, etc

[PJB]

Lol I bit for like 5 seconds then was like wait a second no f n way. 

Today did some genaral shop cleanup and recalibrated my Haimer gage for concentricity and axial zero.   It’s adjustable just like a 4-jaw chuck with teeny opposing set screws.  Used a v block to try and keep everything square and minimize cosine error.
It was actually off by .002 which is in theory well within anything I do but still way more than I’d like for a precision instrument.   Now it’s dead on so I can sleep at night




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[Carpenter84]

You clearly have that on a manual mill... Do you find it worth the price over a typical edge finder?? I'm usually good within a few tenths with my 3/8" Starrett edge finder so maybe the Haimer is just faster? With the super added benefit of Z as well? (Which I do not have any solutions for - I use yellow post-it notes to touch off (0.004"))

[PJB]

I do use it primarily for the CNC to quickly set work offsets in xyz.   On a manual mill the Z is probably not useful.   I mounted it in the BP since its easier to rotate the spindle by hand vs in the tormach.   I used to do the slips of paper, wigglers etc but find the 3D gage way faster and easier.   At work I converted several people to the Haimer and they like it.   Lately though we only buy machines with the Renshaw probing system which eliminates the need for the Haimer.    I will say, I can zero my offsets with the Haimer quicker than going thru the stupid probing routines on the Haas control.   For those with only a manual mill it's nice to have but by no means cost effective unless maybe your zeroing stuff X and Y multiple times a day.   

[Carpenter84]

Did you say it does not zero in the Z axis? Or is not useful that way?

[PJB]

On a manual mill, unless you have a DRO on Z and also a way to keep track of the tool lengths when in the spindle, there’s no benefit to the Haimer at least in Z.
On a cnc mill, in the control, your tools all have their length recorded in a tool register.   The Haimer is also listed as a tool with a length measured when the dial is at Zero.   By setting your work offset in Z to zero with the Haimer, the control then “knows” where the tip of all your tools are. 
That’s a lot of word salad hope it makes sense. 


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[Carpenter84]

Ahh that's a good point... Silly me didn't consider the actual tool offsets.
I COULD figure all that out for each tool/holder but that's kind of a lot of work.
Thanks for the insight.

[Carpenter84]

Some kind of retaining cap and bearing spacers.
1045 steel, 5" OD. What I'm assuming is a seal groove in the cap.
0.001" tolerance all around in the bearing spacers. They are surface ground.

[34_40]

Wow, those look nice Shawn. 

[Carpenter84]

Just a simple task today. Rough skimming some bar stock that came from heat treat.
1.50" bars, don't know the material. I'd say they're stress relieved and tempered to about 35-40Rc. Face, center punch, skim to 1.485.
Someone's machine food. I'm doing a few orders worth, about 65 of them. Boring, but pays the bills. It is nice to not have to think sometimes.

[PJB]

Looks like you’re really starting to roll with the jobs incoming.   Good to see.   
I’m working for the man today - making a Swiss cheese fixture plate. 430 holes tapped 1/2-13 in a 1/2” steel plate.   Pushed it to the 20” Y travel limit



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[Carpenter84]

I have full time work. Multiple jobs a day, or multi-day jobs.
I just don't usually have time (or think to) take photos and post.


Oh look, lucky you. Making fixture plates on a handy dandy VMC... I keep having to do fixture plates by hand!! Lol.

[Carpenter84]

Quite busy again.
I have a large order for a whole mess of different types of fixtures and clamps.
The photo is just one batch of about a dozen.

Chamfering is always kind of a pain in the butt. And many of my parts drawings require specific edge breaking. I used to chamfer with a die grinder or pencil grinder and carbide burrs but it's really easy to slip and spoil a nice finish. So, I finally wacked something together yesterday. Quickly bolts to the T&C cutter grinder, very easy to adjust position and chamfer size. Dressing the wheel is a bit tricky but I'll sort that out later. The close up picture doesn't do the grind justice, it is decent. But a quick whip with a Scotch Brite wheel and it's baby smooth. And most importantly, it's quick and straight.

I will likely give this to my CNC guy to cut diagonal grooves and send it for hardening. Plates are A2.