P20 Project Update

[Thee Rickster ™]

Well the cavity is semi-finished to .035"

 

6-1/2" deep from top of parting line down to bot of part.

 

its about 2000 lbs lighter now.

 

 

 

 

 

Running finishers tonight

[Rstewart]

Sweet!   That's a lotta metal removal (fer me anyways).   Looks good

[AMCNitro]

...sigh... I miss machining molds...

[Roger]

Question:  Are those lifting eyes I see on the sides, if so, did you lift that part pulling sideways on them?  (DANGEROUS IF SO) IMHO

[Thee Rickster ™]

Question:  Are those lifting eyes I see on the sides, if so, did you lift that part pulling sideways on them?  (DANGEROUS IF SO) IMHO

 

Not sure what you mean exactly by pulling sideways.

 

There is 4 of them they are 1-1/2" thread, rated a 10000lbs each

block was 4500 lbs before cut

 

Only lifted all 4 straight up and set in on table.

 

I've seen larger blocks (4' x 4' x 10") with only 1' eyebolts using 2 to flip

the block, at a different mold shop.

 

Plus we sent two maintenance guys to a class for this

and they did it...

[Mjölnir]

Not sure what you mean exactly by pulling sideways.

 

There is 4 of them they are 1-1/2" thread, rated a 10000lbs each

block was 4500 lbs before cut

 

Only lifted all 4 straight up and set in on table.

 

I've seen larger blocks (4' x 4' x 10") with only 1' eyebolts using 2 to flip

the block, at a different mold shop.

 

Plus we sent two maintenance guys to a class for this

and they did it...

 

although not ideal it's a common practice. i try to use swivel eye bolts as much as possible but they're not always available when needed. a little common sense goes a long way. if the handling holes aren't deep enough to shoulder the bolt against the material, shoulder a nut against the head of the bolt so it can be shouldered on the material. most importantly, always, always, always have an escape route!

[mkd]

Not sure what you mean exactly by pulling sideways.

 

probably thinking swivel hooks.

Haas' rock!

 No major tool melt-downs?

[jmfrank]

 most importantly, always, always, always have an escape route!

That applies to a lot in life. sorry couldn't resist.   

[Roger]

See attached picture of improper use.  Otherwise what Mjölnir said in his post.

 

"although not ideal it's a common practice. i try to use swivel eye bolts as much as possible but they're not always available when needed. a little common sense goes a long way. if the handling holes aren't deep enough to shoulder the bolt against the material, shoulder a nut against the head of the bolt so it can be shouldered on the material. most importantly, always, always, always have an escape route!"

 

I worked in a shop where the parts ranged from #600 up to 40 tons!  And every year we had to take classes in rigging.

[Thee Rickster ™]

although not ideal it's a common practice. i try to use swivel eye bolts as much as possible but they're not always available when needed. a little common sense goes a long way. if the handling holes aren't deep enough to shoulder the bolt against the material, shoulder a nut against the head of the bolt so it can be shouldered on the material. most importantly, always, always, always have an escape route!

 

hole were tapped 2-3/4" deep, full length of eye bolts

 

washers were used to make sure they were shouldered to the block

 

fork lift set it on table, no one was endangered on this endeavor.

[Roger]

 That's GOOD    I didn't mean to be the rigging cops!  VERY NICE LOOKING WORK YOU DO!!

[jmfrank]

Rickster

 

Any pics of the finished part?

[FROZEN]

Rickster

 

Any pics of the finished part?

Yea, more pics please!!!!

[Thee Rickster ™]

Almost finished

Just roughing and semi finishing the 3" deep ribs

I'll shoot a pic later today

 

I go on vacation tomorrow!

[Thee Rickster ™]

Well, here is the almost finished corebase minus ejection drilling

 

.900 more to rough on the 4 corner rib patterns then a finish

walls program on those ribs, and the 3-d machining is complete

 

.

 

cheers

 

[AMCNitro]

I miss making molds...

[jmfrank]

Nice. Thanks for the update pics.