As a software developer, I am always looking for quality feedback on my software and ideas.
Sometimes it is useless like "speeds and feeds are wrong" or "my cutters are breaking" without explaining what they think is wrong. 
However, the feedback is often thorough and helps propel HSMAdvisor development by miles ahead in a very short time frame.

Here is the HSMAdvisor workflow step-though by our user Jake. He posted on the support forums as an answer to another user's question. And I thought it was so good, I asked his permission to post it on the HSMAdvisor website Help section:

I've been using HMSA for about 3 years now (maybe more) and have running it down to a pretty quick science.

If I need to create a new tool I do the following:

Press reset, select tool type and fill in all parameters as accurately as possible. I click the DOC and WOC labels to set them back to default then I press the "Add Tool" button. This will bring the naming/inventory box up. I only ever fill in the the "Comment" field as this is what the tool database uses to search for tools. Once this is done I click the save button. I use multiple databases (Flat End Mills, Radius End Mills, Jobber Drills, etc) to keep thing a little more organized in my head, however this is absolutely NOT necessary...you can have 1 giant library if you want. I never delete a tool once it is defined. This makes it SUPER fast to toss a tool into a holder and get some quick feeds/speeds by just searching for the tool. It also allows me to go back and search for a tool that I have used in the past. If it is in my HSMA library, it is most likely in one of the many places tools end up hiding in my shop.

If you have the tool saved it is as simple as pressing the "Load Tool/Cut" button. Once your tool database has popped up you can simply start typing and it will find any tools with a "Comment" that matches what you have entered. It's really fast and works really well once you get used to the steps...I can type in "3/8" and get every 3/8 endmill I've ever run to come up on the screen. To make this easier on myself I always include the decimal size as well (I run quite a few regrinds) so I can type in "0.3425" and it will bring up that particular end mill instantly.

Now that your tool is defined and saved you are ready to get some cutting data. If you pick the materials list drop-down you are able to type your material in to do a quick search. I work with 6061, 7075, A2, D2, some CPM, and some plastics. All of them have come up without fail by just starting to type the material designation into the drop-down bar. Once your material is selected you can start entering cutting parameters. I pretty much always enter a DOC and then click the label for WOC to get the recommended width for the depth I am taking. I can then take this WOC value and tweak it until I max out my MRR using a combination of HSM and Chip Thinning. If I need to helix into a pocket I bring up the Circle/Ramp calculator. It is rather self-explanatory, however, you need to make sure you enter your ramp angle every time. It doesn't save a default and can give you a wonky plunge rate if you aren't careful to get the right data entered. If your pocket is going to be larger than 2xD of your tool I just enter the diameter that it will cut during the ramp. Something like 195% of the tool diameter so as to not leave a nub in the center. I also lock the spindle speed and plunge spindle speed so they are the same. I used to use different speeds for them however my machine has a gearbox that doesn't shift from low to high reliably while running a program.

Next, I verify all the green/red bars are in the "safe zones." I leave the deflection/torque sliders at the default of 70%. With long end-mills, I tend to back down the deflection limit and lower the speed slider significantly.

Finally, I can take the calculated values from the top right box and enter them into Mastercam. I tried to set up the integration between HSM and MCAM years ago but it kinda shoehorned the functionality of HSMA from my standpoint. I use 2 monitors and leave HSM on one and MCAM on the other so I can bounce back and forth. If you only have 1 monitor there is a button for a "Floating Feed/Speed" window that will stay on top of MCAM and allow you to get the data moved without tons of switching programs on a single screen.

So that's the basic workflow I use for HSMA and MasterCam. It is not a perfect system but it is really quick. I can grab a tool I have defined in the past, select material, type in DOC, and have workable numbers to start from. It takes about 10 seconds....this program works exactly like my brain does.... it's almost weird how natural it feels.

Sorry if this is an overwhelming post on a necro thread, it is so much harder to explain how to use the software than it is to just....use the software. lol.

Jake

Did some testing for HSMAdvisor in A36

Tool: 3/16" 4 FL 0.25" LOC 0.7 Stickout

RPM: 5000 Feed: 32.0ipm

Original engagement DOC:  0.25, WOC: 0.083

Was successful and sounded nice, but the TTS holder started to pull out. Had to half both DOC and WOC for the video:

After almost one month of waiting for parts, tracing wires, testing, soldering, and assembling. Here is the finished product!

Milling case hardened t-slot nuts:

Quick Tool change action with Tormach TTS holders:

I came across a very educational post on Practical Machinist.

The topic-starter used over-aggressive speeds and feeds for his tiny BT30-taper machine and the retention knob (a.k.a Pull Stud) snapped causing the holder to drop lower, disengage from drive lugs and mess up the spindle bore in the process.

Just in case you don't know. Retention Knob looks like this and is used to pull the tool holder in to the spindle bore, thus holding it in place:

(Retention knob is the detail on the right)

This whole article is to remind everyone the importance of proper tool holder and retention knob maintenance.

Retention Knob Tips

• Retention knobs (according to HAAS) have service life of about 6000-8000 hours.
  That means that if a tool holder is used 3 hours a day, you should replace the knob after 8 years in service.
  For smaller BT30 knobs, you should probably replace them every 4 years.
• Retention knobs should be lightly oiled or greased (if TSC is used) once a month to lubricate the draw bar.
• There should be no visible damage or rust on the knobs.
  
• Do not exceed the maximum cutting force recommended by your machine manufacturer.
  Some of those high-helix end mills create large down-force that could in certain cases cause the knob to snap!
• Also retention knobs should be torqued to manufacturer specs and the tightness should be regularly checked. Overtightened knobs may lead to taper of the tool deforming and causing uneven contact with the spindle bore.

Tool Holder Maintenance Tips

• Keep Tool Holders clean. Especially the taper part that is matching to the spindle bore.
  Wipe them with a clean cloth. 
• Do not use sand paper to clean tool holders! Soft Scotch-brite is acceptable to clean very dirty ones.
• Repair dings and notches on the taper.
  Even an aluminum chip will cause a ding, that will create a high spot around it.
• Replace worn-out tool holders with new ones.
  Signs of ageing is uneven contact with the spindle bore and fretting (blackening of taper in certain spots)
• It is also a good idea to re-grind the spindle as well when replacing the tool holders - there are lot's of services that do that for very reasonable price.
• Like wise when a new machine is purchased, only new holders and retention knobs should be used. Using old worn out holders on a new spindle bore will lead to its premature wear and even damage.

Those are all the things I could think of at the moment.
Let me know if there is anything missing.

Have a safe and productive week!

We all know what the CNC Milling Machine spindle is used for - to hold the tool. But it is old and boring. Everybody does that.

Here are the 6 interesting and maybe less common ways to utilize machine spindle, increase productivity and solve some problems you never thought you had.

Use your Spindle as a fan to blow chips and coolant off of your work-piece, table and fixturing.

I saw this little gadget at a local IMTS show and it was quite cool. It is installed into a tool holder like a regular cutting tool would be and at the end of the program you can call the it up and run a little table-cleaning program to make your work a lot cleaner!

Read More 

I would like to thank everyone who has helped with the development of our software by investing your time and money, making suggestions, reporting bugs, recommending our software on various professional online message boards and to your colleagues.

Every bit of money I charge for our software goes back to development.

Unlike most other software developers, who often hold back on features to not allow their products to compete with each-other, every useful feature available on mobile FSWizard goes to the desktop-based HSMAdvisor and vise-versa. Even if it ends up hurting overall sales.

I was the first developer who was able to bring a speed and feed calculator as complex as FSWizard to the mobile platform and I have just uploaded another update to FSWizard Mobile app, that makes it even more powerful. Almost as powerful in fact as HSMAdvisor.

Why bother? Why create a competing product that does almost as much, but costs almost 3 times cheaper?

Because I know that most of our mobile users are not only unable to buy a more expensive desktop product, but they are also often younger, less experienced and hold machinist positions without access to desktop computers.

These users deserve every help they need to grow skills and their careers.

And when they grow to be CNC Programmers and get to sit in the office, they would need something more convenient and more powerful.

I hope they then remember that the same guy who develops FSWizard:Mobile also develops an even cooler desktop application called HSMAdvisor, that will certainly help keep their bosses even happier than before!

Once again, thank you, guys. Please have a Safe and Prosperous New Year.

Here is the list of recent changes to FWizard:Mobile v1.38

Read More 

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Lately there have been a lot of really interesting HSM topics on PracticalMachinist forums.

In one of them a guy who owns his own resharpening business posted a video of his endmill milling a block of D2 hardened to over 60 RC.
The forum topic is located here First try on D2 62Rc(video)

Here is his post so you know what we are talking about:

In the ensuing discussion i posted my own take on how and why HSM works

HSM works in many ways.

1) Reduced cutting time per edge per revolution allows it to cool down more.
2) Chip thinning allows to increase chipload (advancement per tooth per revolution)
3) Increased depth of cut combined with shallow radial positively affects deflection. Tool bends less as it is more rigid towards the tool holder.
4) Higher cutting speed actually reduces cutting forces as heat generated in the cutting zone makes it easier to shear off a layer of metal. Yet because the time of contact is so small, most of the heat is carried away with the chip.
5) Higher RPM also allows to get rid of hot chips faster thus further reducing heat transferred to the tool.
6) Higher feedrate actually reduces relative cutting speed.
7) At high axial engagements more than one flute is in contact with the workpiece at different points along the axis of the tool. This too helps combat vibrations and chatter.
8) You are using more of the tool than just its tip, so technically you can do more work with one tool before it gets dull.
9) lastly it looks cool as hell and is very impressive. Whenever we know visitors or bosses are coming we try to make sure some HSM is going on even if application does not merit that
I am not sure if the air that is moved by the endmill is doing much, but i suspect he didn't mean exactly that.

I have been asked to create a tutorial on how to work with the tool library, so here it is.

myCut Tool Database is quite a unique thing.

It not only contains all of your tools, but also each and every tool can have multiple operations or "Cuts" attached to it.

Everything is very simple.

Database contains Libraries

Libraries contain Tools

And Tools contain Cuts

Each entity behaves according to specific rules and "knows" specific kind of data.

Please read more to learn how it all works.Read More 

Shrink fit holders and extensions often come with a big through hole.

Its primary use is to allow the shank be knoked out from he back should the tool ever snap off. It is also used to supply coolant for CTS machines.

Unfortunately said hole affects rigidity of the holder making it more likely to chatter leaving bad surface finish and badly affecting tool life.

There is however an old trick to prevent or minimize the chatter.

All you have to do is pack that hole with some thick grease.

Don't forget to cap off the oppening so that grease does not escape when the tool is spinning.

Here are several photos of surface finish before and after grease application. All cutting parameters were exactly the same in both cases.

before. deep chatter marks after. surface finish is ideal tool in extension holder showing capped hole

We all have manufacturer speed & feed charts and have used their recommendations.

But sometimes those charts just don't apply.

For example manufacturer charts assume you are using their endmills at a certain stickout length, flute length and at a certain depth of cut.

But in the real life you rarely match all these conditions.
Sometimes you need to use longer endmill. Sometimes your flute is longer than what manufacturer gave you speeds and feed for.

What i am trying to say is that whenever your real life conditions differ from "normal" you "need to adjust accordingly".
In fact this is what is printed below many charts.

Too bad not many sources tell you how and what to adjust.

While failure to adjust cutting parameters often leads to chatter, poor surface finish and even tool breakage, one of the biggest mistakes people do when machining is Read More