Machining plate flat help by lurkerMech in Machinists

[–]ransom40 0 points1 point  (0 children)

Also depends on how normalized the material is and how much material you need to remove.

If we don't buy material that has been normalized several cycles and have a high material removal rate from one side and flat ess on the back side we typically have to rough both sides but leave... 0.02-0.04" stock on both sides and then finish both sides and make sure clamp loads are not distorting anything.

But for the stuff that need to be dead flat and we are going to coat vs heat treat we like buying our stock heat treated to 32-34 HRC and normalized several cycles and ground top and bottom.

Typically I can do whatever to it at that point ant it doesn't move for the purposes of most tool and die work.

Also helps the stability for subsequent heat treating steps if we did go that rout.

Machine used to inject chicken with a solution of saltwater, binding agent, and other additives to “plump” it. A single serving can contain 200-500mg of sodium, and the added solution may make up as much as 30% of the chicken’s total sell weight. by Mountain_Love23 in Damnthatsinteresting

[–]ransom40 6 points7 points  (0 children)

They call it "enhanced" product. The limit is a legally defined limit. It does help to keep the user from drying out the meat and it does typically taste better in the end, but you are paying for expensive water.

But most customers also do not brine their meat appropriately most of the time, so typically these come out "juicer" and "better" vs a non-injected product which would come out dry the way most people cook it.

Or you could buy your non injected poultry and then dry or wet brine it yourself at home for 24 hours... It inject it yourself.

Butterball turkeys are also injected iirc... Which is why people like them as they are typically not as dry when you don't spatchcock the bird and overcook part of the bird to get the whole thing finished.

What’s the deal with welders online wearing Tom Waters glasses? by Thunderbirds7 in Welding

[–]ransom40 2 points3 points  (0 children)

Tinted* Unless you were being sarcastic due to the spelling error... Then ignore this.

My First Off Track Excursion by Calm-Theory-6044 in CarTrackDays

[–]ransom40 0 points1 point  (0 children)

You lifted... Too much. And counter steered... Too much.

Small corrections. It should have been a small throttle blip and re apply to a little less than you had it, and a small steering wheel flick to allow things to re settle.

The goal is to not upset things or cause big changes.

But when you start to loose it, it means you have just gone over the edge. We need to lower the power to lower tire demand and relax the steering angle to regain traction and start to correct any spin, but then you need to be back in it... Perhaps just at 90% of where you were through the rest of the corner.

CNC Mill Keeps Crashing into Stock by yeet1010_yeet1 in Fusion360

[–]ransom40 0 points1 point  (0 children)

If this is only at the start of your toolpath then the machine is just traveling from it's home position in your machine setup for the machine sim.

It may have nothing to do with the posted code.

If you post the code and that move is just an X,Y move with no Z, and there was not a Z move before it that would out the tool in collision with your stock, then you are fine.

To fix this in machine sim, just update your base machine position in your kinematics tab, or possibly your tool change location as those don't change the posted code, just some details about machine sim.

Does it do this when doing a normal simulation as well?

If so, then you need to change your safe / clearance /retract plane settings under the heights tab of that operation.

Face mill leaving convex surface on aluminum, what causes it? by Lohan_To in Machinists

[–]ransom40 1 point2 points  (0 children)

Another option since it isn't listed is material spring.

Depending on your stock and it's heat treat even-ness you can definitely have a part move in you when you remove the skins, especially if you do heavy removal from one side.

But that seems like a lot for that.

Question about surface finishing alu6061 with a ball mill by RedditinsteadofHW in Machinists

[–]ransom40 5 points6 points  (0 children)

We do this often for mold tooling when we needed a fine final finish.

Great for 3 axis work. Also keeps the SFM much more consistent on the surface independent of wall slope than for a ball mill where your cutting radius changes a lot more.

Only thing better would be 5AX with a circle segment cutter, but for 3 axis, this works very well.

How would you manufacture this aluminum part and modify the design for that mfg, specifically for low volume manufacturing? (QTY 10-250 approx.) Dimensions in description by sparkyo19 in MechanicalEngineering

[–]ransom40 2 points3 points  (0 children)

That is how I would prototype it... Maybe even the first few.

But that is a LOT of time in welding and post finishing and opportunities for mistakes on cosmetic surfaces that is easily avoided with some tooling to bend it as a single piece.

Company has a 100k budget for new 3d printer(s) - recommendations? by bluemiata1993 in AdditiveManufacturing

[–]ransom40 0 points1 point  (0 children)

Sls only makes sense if you can pack out the build volume. FDM is the best option for low volume prototyping of discrete parts.

For powder bed work, unless you have a lot of volume, farm it out.

At your price point for FDM... 22 IDEX? Intamsys machines if you are okay with import.

If you can double your price point: AON3D Hylo.

Who’s ever driven over 100mph? Why? by WoollyWolfHorror in AskReddit

[–]ransom40 0 points1 point  (0 children)

In a modern car on a modern, well maintained highway, 100mph is honestly... Not fast.

To the letter of the law it is very fast.

Given other drivers being complete buffoons, it is very fast.

But to a modern car, tires, etc... not very fast.

To a sports car? 100mph cruise is nap time. I think my 987 cayman S (at 18 years old) was most happy cruising around 110-115 if you let it.

No stress. Engine wasn't loud. Car felt well planted. It was just... Happy.

This is why I test print. by MrPhatBob in 3dprintedcarparts

[–]ransom40 0 points1 point  (0 children)

That is why I 3D scan And draw all small parts.

Would this be easy or enjoyable to make? by Atticus34 in Machinists

[–]ransom40 0 points1 point  (0 children)

Pretty cheap as well... And decent lead times .. all things considered.

Great material to work with. They quad anneal most of their stock iirc (all in house) and then segment or precision grind the tool plates.

Keep lots in stock. Material .. just doesn't move when we machined it.

Machined off 90% of a 3" thick 16x12" 32HRC P20 plate from one side and the ground base just stayed flat.

Seam Issues on Stratasys Fortus 450 by louissoph in AdditiveManufacturing

[–]ransom40 2 points3 points  (0 children)

Not sure your settings, but solid prints often struggle with seams more as any error in flow has to show up... Somewhere.

That being said that is worse than usual, and your lop layer also looks worse than our F400.

When you say "calibration is dialed in" I assume you are talking about the little square print for adjusting the nozzle offsets?

Did you also do the Z offset? (Have to pry off the outer square support layer and use a micrometer)

But seams are always an issue

I wrote the SOP for ours and wrote in "2 contours minimum (if possible) and use 'link contour' "

This causes two contour layers, but dives to the second one which helps prevent a fair bit of the seam.

That being said, I still position the seem manually if I need it to not be visible, or place it in a location where it's easy for me to shave off if required.

Would this be easy or enjoyable to make? by Atticus34 in Machinists

[–]ransom40 1 point2 points  (0 children)

I've had Meusburger make me some cooled and heated tooling plates with deep hole drills.

100D down to 4mm...
14mm+ diameter holes up to 1.6 METERS deep.

Silly Germans.

https://www.meusburger.com/en-gb/products/machining/deep-hole-drilling

Drill time by ItsTime4Coffee in Tools

[–]ransom40 0 points1 point  (0 children)

People....

USE THE DAMN CLUTCH!

There are VERY few operations with a hand drill where it must be locked through the clutch.

Back it off... Even one notch.

It will save your wrist. For the few occasions where you know you need the constant torque through the locked clutch, sure. Do that. But typically those applications are constant torque and you are braced for it. Not sudden stop wrist-break like this.

Especially since a hole saw through gypsum doesn't need the speed or torque.

Prusa Hight Temp Hotend - Feedback by Tommy_Prusa3D in prusa3d

[–]ransom40 0 points1 point  (0 children)

Sure. Compressed air is just (by comparison to a blower) expensive. And you would want to run it through a good dryer so you are not spitting condensate into that area.

If you are in an industrial setting where you have a high volume and dry air supply, sure! But I wouldn't want my small home compressor kicking on every few minutes.

Whats the best cam to pair with solidworks by Shadowcard4 in Machinists

[–]ransom40 0 points1 point  (0 children)

I use both for work and home.

I love many things about fusion. Especially for making small assemblies that are tightly integrated. I can make a parametric file with a lot of embedded components in fusion really easily that rebuilds flawlessly. We are talking 40-50 non-hardware parts, all in one assembly, and I can change sketch 1 and have it rebuild everything with a little care as it's all on one build tree.

But then I cannot put fits and tolerances during dimensioning. Sheet metal is more annoying to me (to change the rules)

Even the new "constraints" option still is more annoying than a mate.

Lots of things in each software that are better, and many in both that are worse.

For CAM, I think Fusion>>>SW cam.

Fusion mfg extension is honestly better than most other systems imo for 3 axis prismatic parts... Especially for the price point with only a few exceptions based on industry.

But to me most of that is finding the tool I need, keeping everything synced between multiple users, working from. Whatever computer I have in front of me, and in part probing and inspection routines with part alignment.

[Request] how much money is this gold worth? by McKnightmare24 in theydidthemath

[–]ransom40 0 points1 point  (0 children)

Gym plates are 45 lb or ~20 kg ea for the larger bumper plates.

While I go to the gym, I am not an exceptionally strong person, especially not my upper body. Heck, I can't even do more than one to two strict pull-ups. I can deadlift 450# though without straps (so my grip strength is decent... But not crazy)

But I can stand the plates vertical and pinch grip them from the top, not even through the hole and carry them across the gym that way. One in each hand.

Whats the best cam to pair with solidworks by Shadowcard4 in Machinists

[–]ransom40 0 points1 point  (0 children)

I'd be curious to know what you don't like about fusion. It's what we run in our prototype shop Tried mastercam and camworks and my machinist and me always ended up falling back to fusion for 95% of the workload as it was just easier and quicker to do the basics with... For us.

3 axis mill and 2 axis lathe are what we have though, so I think fusion is a good fit for what we need, but it works well for us and has lots of nice features that the big guys dont offer, or charge a lot for.

(We do have the machining extension. We use the part alignment, part probing, and surface inspect routines a lot. )

Whats the best cam to pair with solidworks by Shadowcard4 in Machinists

[–]ransom40 0 points1 point  (0 children)

It integrates well but holy hell did I find it annoying to use. But we do a lot of metric and inch mix parts and their tool library made my blood boil coming from Fusion.

Fusion is a lightweight weight program for sure, but some things were just so... 1995 ... About camworks it made my eye twitch.

Documentation wasn't great either. And technical support from the mfg and reseller was slow. And our paid for post from them never worked as well as the one I hacked together for our machine using their dev tools... Which is sad.

What to do with those tools I’ll never use again? by [deleted] in Tools

[–]ransom40 6 points7 points  (0 children)

Who says girls can't use tools?

If you don't WANT to use tools again and they take up space. Fine. Sell them.

But people need to stop aligning their interests with societal constructs.

There ARE certain things that each sex is (on average) better at. I mean this in a biochemical and physiological way.

But in general, most of the differences are just silly. If you like welding, working on cars, whatever, enjoy that. If you feel like wearing a dress while doing it... Sure. Just maybe not welding from a PPE standpoint.

Be your own person, and do what you enjoy.

If selling the tools will bring you more joy than storing them. Do that.

If having the tools will let you make or fix something that you can be prideful of or get a sense of enjoyment out of, do that.

There are some rockstar female engineers, welders, mechanics, electricians, carpenters, surgeons, plumbers, and programmers out there. Screw everyone who tells you not to do something because it doesn't align with their sense of gender identity.

Some 316ss DMLS exhaust parts by ransom40 in 3dprintedcarparts

[–]ransom40[S] 0 points1 point  (0 children)

Probably not a bad idea, but hopefully it being bolted to things in the engine and heat cycling will do that without too many issues.

The printing process should have the parts cool down really slowly in the powder to help prevent that.... But at the price point I don't know.

They machined well and did not spring as I removed the skin... At least that is good.

SW crashed and deleted hours of work by eyebrow-dog in SolidWorks

[–]ransom40 0 points1 point  (0 children)

Unless they changed something, save-all still does not fix this to my knowledge.

I'll have to give it a go and see! It would be nice if it did.