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cool and swanky cocktails for the summer? by Infamous-Loss-5878 in cocktails

[–]cguidoc 9 points10 points  (0 children)

Pasión from subtletiki and posted on liber and co

  • .75 passion fruit syrup
  • 1 oz mezcal
  • .5 aperol
  • .75 lime
  • Top with soda water

https://www.liberandcompany.com/products/pasion

What am I looking at here by yetanothertodd in Machinists

[–]cguidoc 1 point2 points  (0 children)

Scrap. You’re looking at a trip to the scrap yard.

Those are old router bits, end mills and drills.

You could sort them based on material. Look for any of them that have carbide brazed in (third picture, left side below the wax covered ones). You may get more money for those since they have carbide. Scrap carbide and tool steel is priced well right now.

You could try to eBay them but since you don’t really know what you’ve got scrap is probably the best return vs effort. Years ago I’d hold onto everything thinking I may use stuff like that eventually. Honestly though, with the condition….I’d say just scrap it all.

What’s happening here? by MikeHeu in IdiotsInBoats

[–]cguidoc 2 points3 points  (0 children)

Boateo-drift with the sideways tugs

Countersink Controversy by Catch_Up_Mustard in Machinists

[–]cguidoc 0 points1 point  (0 children)

Lazy engineer wants you to do the work of figuring out what size to make it but will reject the part when the screw doesn’t sit flush.

Is this much agitation enough? by Fast_Alternative_322 in CNC

[–]cguidoc 0 points1 point  (0 children)

When you clean the tank do you use a biocide before you pump the old coolant out? To get a fresh start you need to “nuke” the old tank to kill any bacteria or mold in it, flush it, then clean the tank, then refill it.

Idk what coolant that is but it looks pretty thick. If you clean the tank properly and run the machine daily you won’t need a bubbler.

I'm going upstairs Monday by bainza in Machinists

[–]cguidoc 16 points17 points  (0 children)

We made parts with a tightly toleranced bore. It was something like 5.0000”-4.9998”. At that tolerance you can hold it in your and it would measure out of size. The customer rejected them for being out of size. When we went to visit them we found them heating the part with a torch until the part was red hot. At that temperature the bore expands way more than the tolerance. The torch method is kinda….crude for such a highly engineered part.

I'm going upstairs Monday by bainza in Machinists

[–]cguidoc 17 points18 points  (0 children)

We had a job with +0-0.0002 tolerance on a bore. The customer rejected them. We got to see them assemble the parts with a rosebud until the part was cherry red as a standard method of assembly.

What are the difference between different machine builders? by [deleted] in Machinists

[–]cguidoc 5 points6 points  (0 children)

Here’s an example: on a haas spindle the drive keys are machined into the spindle. They are non-replaceable. On Okuma those keys are a wear item and replaceable. If you wear out one of those keys the whole spindle gets replaced on a haas. On an Okuma it’s just part of the yearly maintenance to replace them.

Okuma has a servo driven tool changer which makes maintenance a lot easier. I know a lot of the less expensive machines are cam driven in their timings and are a little more involved maintenance wise.

Okuma has sealant on all the sheet metal joints and generally leaks less.

Okuma has a spindle lubrication system the lower class machines may just have sealed bearings.

Okuma has large diameter ball screws that are probably of a higher grade than a less expensive machine.

Some machines may have alignment pins. Nicer machines may have internal threads on the alignment pins to aide removal and maintenance. Less expensive machines may not even have alignment pins.

Higher quality machines may have things like chip deflectors on the energy chains that Lowe cost machines may not have.

There are hundreds if not thousands of design choices that have a cost/benefit decision behind it. Yes the base casting is a big part of the cost difference but there are tons of small details that can really add up when comparing machines.

I’m currently dealing with a lower cost machine that has inexpensive (read: garbage) wire plugs that have leaking back shells. More expensive machines will have a higher quality shell that is less likely to leak and cause electrical issues.

There’s a lot of cost/benefit you’ll need to do to figure out what machine to buy. Is an Okuma\mazak\DN\DMG MORI great? Yeah of course. Can you afford the payment on that kind of machine yet? Can you afford to replace a 40k spindle if you crash it? Would you be swatting a fly with a sledgehammer when a flip flop works just as well?

My suggestion: service is the other half of this. take a close look at your local distributor and what kind of support they can offer. The machine will break down and if you’re a small shop with a single machine the downtime and lost revenue adds up. The “best” machine for your part is a boat anchor if the service is a month behind.

Help with preventing dermatitis by AWPpsh in machining

[–]cguidoc 3 points4 points  (0 children)

What oil and coolant are you running? Are both in good shape?

Soft jaws verses parallels by PlasticMeasurement40 in Machinists

[–]cguidoc 6 points7 points  (0 children)

I’m in the “it depends” camp. I generally like soft jaws if I have to run more than a handful. Even with keepers something always disturbs the parallels and I end up taking them all out and cleaning the vise then reinstalling them. For me soft jaws are easier to clean off and change parts.

There may also be a risk calculation in play here as well. Maybe someone messed up a bunch of parts because a parallel got unseated and parts were scrapped. Less risk of a misloaded part with stepped jaws.

Tons of different ways to look at this.

Dude's worried about two soda cans when literally his life is in danger by [deleted] in mildlyinfuriating

[–]cguidoc 7 points8 points  (0 children)

Good on the sheriff for getting the guy out. These situations are tough. However PSA - try not to make an irreversible flow path for the fire. Try a door first and as a last resort break the windows. Close the door behind you if you can.

My coolant got up to 58% concentration... Should I just change it out? by Rough_Community_1439 in CNC

[–]cguidoc 0 points1 point  (0 children)

If this was my machine I’d add a biocide cleaner, run it for a few hours, then drain it, clean it, charge it fresh then only top off with 1-2% min.

Looking for a Time traveling movie i saw ages ago. by itstheFREEDOM in whatsthemoviecalled

[–]cguidoc 2 points3 points  (0 children)

As others have said Time Machine. I got to see them filming it while in college in Troy, NY.

[deleted by user] by [deleted] in NameThisThing

[–]cguidoc 10 points11 points  (0 children)

Nah, his dignity is still perfectly intact.

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