New feature coming to FSWizard - the ability to save your tools (and later cutting parameters) online for re-use later.

It is now a feature in development, but the online app already has it enabled: https://app.fswizard.com.

Take it for a spin!

This was initially planned only for the HSMAdvisor app. But since it is easier to develop for FSWizard, I decided to implement it there first. Iron out all the kinks and the flow and then roll it out for HSMAdvisor as well.

Yes, that's right. You will be able to share tools between FSWizard and HSMAdvisor!

Cheers!

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

In my days machining blow molds there were lots of parts where I had to make a completely through hole. Sometimes those were up to 4 inches deep and I had to go from both sides!

The trick to machining cores like that is to leave about 0.05" on skin all around AND pick milling direction and start point such that when the last bit is milled through, the core gently pushed away from the cutter instead of jumping out.

Small stripper plate. 1.75" high Big stripper plate. Also 1.75" high

On the heels of the previous post.

YouTuber Breaking Taps has just published another of his interesting videos:

In it he is testing various High-Speed Machining techniques on his benchtop CNC router.

Also it is mentioned that HSMAdvisor does not seem to like those small high-feed cutters: at some point some calculated values become negative.

This is a legitimate criticism and it actually happens because default cutting depth of 0.024" becomes too large for the 0.24" Lakeshore high feed and mill and an actual Flute length of 0.015" must be entered in order to get proper values:

With actual 0.015" flute length entered the recommended speed and feed values are now in the safe end of the ballpark suggested by the manufacturer.

Task added to the issue tracker!

Just found a very good video of testing a table-top gantry router cutting mild steel.

YouTuber named "Breaking Taps" used speeds and feeds generated by HSMAdvisor to get a starting point.

To see where exactly he was in the calculations I decided to reproduce all of cuts in HSMAdvisor.

A couple of assumptions i made:

1. Tool Type: Solid End Mill. It is not recommended to use the HP/Roughing tool type on such light machines, so i assumed this is the tool BT used.
2. Tool Stick-out looked like about 3/4" so I used that number.
3. Material was set to A36 Hot rolled steel.

Test 1) Minute 4:52

Good, slow and very safe starting point.

Test 2) Minute 6:20

Twice as aggressive as before, but we can still push it further.

Test 3) Minute 7:10

Here we can see the lack of machine rigidity starting to show. But at 65% feed rate it is still alive.

Test 4) Minute 8:30

This last test did not go well at all.

The machine has finally hit its limit and the endmill broke at all S&F overrides at about 100%

Was this fault of the software? Not really!

If that were a heavier machine, the last cut would not even be considered that difficult.

Here is a full slotting cut on a Matsuura VMC:

And here is the calculation that was done using HP/Roughing End Mill tool type:

If i were using the "Solid End Mill" tool definition, i would have to dial the feed override to 176% to match the 45ipm feed rate!

So what can users of light machines do in order to not break taps end mills?

First of all make sure the spindle torque curve is built and enabled in your machine profile settings.

The easiest solution is to de-rate the spindle. There is "Warning at" level in machine profile settings. Set that to 50% for starters and it should save you from exceeding the machine's capabilities.

Overall this was a great test of this little machine's capabilities and of the great help that software like HSMAdviasor can lend in discovering them.

Please head over to Breaking Taps YouTube account and subscribe.

After more than a year in development and having its entire code base rewritten FSWizard Android app has finally been released to production!

The main goal of the initial production release was to not drop the ball. So the number of new features is relatively small.

The biggest visible improvement is the new design that conforms to the mobile UI standards.

We also support more materials in the lite version of the app than ever:

For HSMAdvisor customers all the available materials will be downloaded after the Login.

Another improvement is the sliding Speed and Feed overrides that are now located not only on the usual Overrides panel, but also on the Result panel:

This allows you to see the effect your changes make in the real time.

The new version of the app also allows to push immediate updates and hot fixes.
So expect a lot of new features delivered to you faster.

As you might have guessed I did not re-design the whole app just to add a couple of new sliders and a new design.

My plans is to fully integrate FSWizard with HSMAdvisor having them exchange tool libraries and cutting data.
Ant the core design changes that i made will allow for this work to proceed forward.

New FSWizard. Check it out if you have not already!

PS. for now the update is only available for Lite Android version of the app. FSWizard PRO Android and all version for iOS are still sporting old version. But I expect to update them within a week as well.

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 have many helpful articles over at HSMAdvisor Help portal. But beacuse of that very reason not many website visitors actually read any of them.
It is a pitty that most advanced users will never actually visit the help section, because they already know how to operate HSMAdvisor.

And this particular one, I believe, is too useful (I just updated it to include more info) for my customers and other machinists to keep it burried in some help section that few ever read.

So here you go:

Read More 

Before we start milling away our stock we first need to get down to the required depth.

This is not a problem with external features when we can plunge outside.

When machining closed pockets, however, we need to find a way to get down to the machining depth first.

As usual there are several ways to get the job done. The plunging methods listed here are not ordered by their preference.

For various machining operations on different materials some may be more preferable than others.

Straight Plunging into a larger Pre-Drilled hole

This is one the best ones in my opinion.
Very few machining modes can compete in effectiveness with drilling and this method will get you the best combined tool life on most materials and (in case of many deep pockets) the least machining time, even when tool change time is factored in.

Read More 

Hello everybody!

I have not made many blog posts here lately because i have been working a lot on new features and simply did not have much time for anything.
So I decided i'd make a little report on how we are doing and where the project is.

First things first.

I just released an update to HSMAdvisor v1.503

• Drilling tools now consider Shank Diameter when calculating maximum allowed torque on the tool.
  This will lead to more safety when using, say 1" tool with a 0.5" shank.
• Thread Milling tools have been immensely improved.
  Shank diameter is now included into the calculations.
  Default Length is now 2.5 diameters
  Improved suggested cutting speeds and feeds

Our Multiple Language Translation Program is chugging along nicely

Several people messaged me about intentions to build translations so far.

At this point we have people working on translations for the following languages:

• Croatian
• Serbian
• Portuguese
• Perhaps Polish (I see someone uploading translations, but the person have not contacted me about it)

Mobile FSWizard app is due for major improvements

Major visual re-design is under way and we are working on making FSWizard Mobile accessible on more devices in more ways.
It is going to be a fully fledged WEB app, that can be run on any internet-connected device. Even on a desktop.

Integration with HSMAdvisor Machine Profiles and Tool Libraries is also planned.

Perhaps we are going to drop native support for Google Play and iOS stores. I am sick of them charging us 30% for their services.