HSMAdvisor has got a brand new CAD/CAM integration profiles manager.

It is now possible to import/export profiles to and from HSMAdvisor.

For now i only had time to add SurfCAM 5.2 to the list. MasterCAM x2 is coming a little later.

While using Capture Wizard yields very satisfactory results in most cases, it does not take a long time to set up either.
The whole procedure of creating a brand new profile takes just about 30 minutes.

If you created your own profile for a CAM system that is not already in the lest, please send it to my e-mail address: cnc@zero-divide.net or create a thread on the support forums. There you can upload XML files directly.

I would like to add it to the next release for everyone to enjoy.

Very good things happen to those who contribute!

If you need any help figuring out CAD/CAM integration. please refer to "HSMAdvisor Tutorials" category of this site, create a thread on support forums, or send me an email!

In this tutorial we are going to explore different options and techniques when programming cutter movement.

Lets begin with a simple part shown in a drawing below.

Basically it is a rectangular piece 4.00x2.00
For the purpose of simplicity lets make the depth of our profile (z- dimention) 0.75"

We are going to use a 0.5" dia endmill, again because it is a very common size and is easy to do basic math with.

I took a liberty of puting locations for our part/toolpath, so it is easy to extract numbers from the drawing just by looking at it.

Notice the green rectangle. This rectangle represents the path that the center of the tool will have to take to produce the part with required dimentions.
The thing is: because endmills have certain diameter, the center of the tool must be always offset by its radius.

There are two ways of doing that.

Another week another update!

A few days ago a topic popped up in CNCZone's BobCad-CAM forums regarding why speeds and feeds in above mentioned BobCAM were so crazy and unworkable.

Users were complaining and raving about such a "simple" thing like a good speed/feed calculator being missing from there.

This is actually a trend in pretty much any other CAM software package.

They sell tool to create toolpaths.
Many give tools to create 2D geometry and even real solids.

But very few CAM packages offer anything that even remotely resembles working starting cutting parameters.

It does seem bizarre and strange. But every CAM program "knows" type of material being worked on. It knows type of tool, its diameter and length.
It even knows flute length, cutting depth, width, ramp angle... pretty much everything.

But given all that they are unable to combine all this data and produce Speed and Feed that would not either break the cutter or melt it into the work-piece!

Anyway. Back to the topic.

Someone on that forum thread mentioned my old FSWizard.
It sparked quite a lot of interest, and i popped in and dropped a link to the latest version of HSMAdvisor, so that they actually try and see what a good calc can do.

As a result i have received a ton of emails filled with suggestions and thank-yous.

Apparently many did not even know anything about it and were surprised how well it worked for them.
One guy who just bought a license even said that his copy already paid for itself several times over within the first couple of days of using it!

To thank for enthusiasm, i quickly implemented some of those suggestions and i am now releasing them in this version 0.710

New thing are

• Adjustable font size and style. (in Settings) Allows to adjust global application font.
• Adjustable default values for Speed&Feed Overrides, Tool Productivity, Deflection and Torque Limits. (in Settings) You can now set values to which overrides reset by default.
• New Plunge Feedrate field shows up for milling tools.
  Non-Center cutting tools like Indexed endmills etc. will have plunge feed equal Zero.

Thanks everybody for support and suggestions!

As usual you can download the latest release on the Download page.

This is my first try at making a tutorial.

I wanted to show how to set up integration with you CAD/CAM program usi g drilling cycle as example.

In this release I have added CAD/CAM integration.

Please read the latest tutorial in HSMAdvisor Tutorials section here
This is a pretty Unique way of doing it.

It is still in the beta-mode.
But it is fully functional. I have tested it on MasterCAM and SurfCAM with great results.
While some functionality is not supported well on all cadcam packages, it is still much better than nothing.

Please send me your feedback on how it works with your CADCAM package.

I have also added a list of recently used materials.

Now material list will have 6 recently used items at the very top of it.
Later on i will allow user to enter whatever number of recent items he wants to see there. But for now its just 6.

New Computer ID and New License keys

Starting from this release i have changed how Computer ID keys are generated.
This was done to fix problems some of the users experienced when they added or removed additional hardware on their computers.

New Computer ID's mean License keys have been changed for all users as well.
Not to worry though, License keys will be automatically updated for all of our users, so no action from their side is required.

If you have active license. You will get a message telling you what happened and your license file will be updated automatically.

Some bugs got fixed as well.

All of them were pretty minor, nothing to write home about.

Material definitions got updated as well.

Added several materials, updated speeds and feeds for tool steels and stainless steels.

I still have to add some of the previously requested materials (like Weldox Graphite, etc) to the list.
And i am planning to add it in the next release.

Chiploads for micro-milling were changed as well.

Chiploads for micro-endmills (below 1/16 dia) were reduced significantly.

NOTE. THIS INTEGRATION MECHANISM HAS BEEN DEPRECIATED AND REMOVED FROM HSMADVISOR.

PLEASE CHECK OUT OUR MASTERCAM X9 AND MASTERCAM 2017 HOOKS FOR MASTERCAM

One of the most requested features in HSMAdvisor has long been integration with various CAD/CAM solutions available on the market.

There are two possible ways of achieving said task.

First way: using CAD/CAM API to create plugins to enable HSMAdvisor to "talk to" various software packages.
This road could produce the best results, however implementing it would be laborous and results not always very convinient to use.
Also developer(me) would have to create plugins for many dozens of cad/cam software packages. Muliply that by the fact that with each CADCAM release, a new version of plugin would need to be produced, tested and debugged. This work is for a whole software department and would call for a product far more expensive than what a lot of my customers could afford.

Second way: Grab tool, speed and feed data directly from the CAD/CAM window, process it and then update required information when the calculation is done.
This solution is easyer to implement and could prove to be the most convinient for user as well.

Need i tell you that i have chosen to go the easy way?

Without further delay let me introduce the first Speed and Feed calculator that can be integrated with a CAD/CAM solution by a user himself!

This is How it Works

Step One: User launches CAD/CAM solution. We will use MasterCAM x2 in our case.

A toolpath is programmed the usual way, a proper tool is selected and when it is time to enter your speed and feed data you launch HSMAdvisor.

On FSWizard page you first select

HEM is a relatively new term.

It means High Efficiency Milling. It only became available when constant tool engagement toolpahs became almost standard on most of the CAM software.

Unlike HSM that utilizes chip thinning effect, HEM relies on much larger widths of cut and thus chip thinning does not occur. What gives it its name is much higher material removal rate that would normally be possible.

When you are machining a pocket you are most often only milling at about 50% WOC. But nevertheless you need to calculate speeds and feeds based on the fact that the very first move and every corner will be full slotting action. Which means that the whole pocket needs to be machined at lower feedrate.

HEM uses constant engagement toolpths to make sure that this never happens and that Width of Cut remains optimal. Tool never needs to make a full slot so you can ramp up the feedrate as if you were doing outside profiling.

Here is a video of a 1/2" 3 flute endmill machining a 5/8" deep pocket in aluminum at full depth. Normally this pocket would have been machined in 2 steps at 150 inches per minute.

Using Constant Tool Engagement toolpaths we can go full depth at 0.175" stepover and 275 inches per minute.

The advantage of this method is obvious- Higher Productivity.

HEM is not ideal for all cases and each application merits its own method of machining, but its always nice to know more than one way to do your job.

Here is a video of a 3 flute Hi-performance endmill slotting aluminum 0.75" deep per pass.

Well, not entirely slottimg, more like pocketing, but the very first move is a full width slot.

Stepover is 0.4"

First i calculated the cut on HSMAdvisor.

Used 6061 aluminum as material and HP endmill at a tool type.

Tool torque and deflection limits were both set at 100% and performance slider was at maximum.

This is what it came up with:

S9127 RPM 125 IPM.

Full slot, 0.75" deep.

45 in^3/min mrr.

Looking at how easy it went i think i should allow for more load in my calculator.

If you have not yet tried HSMAdvisor, make sure you do.

You will be amazed at how much productivity you have been missing out on.

HSM or High Speed Machining is becoming more and more popular each day.
Many of us have seen those youtube videos where endmlls remove large amounts of material at high speeds/feeds.

While definitions of HSM may vary between tool manufacturers and even individual shops, the physics behind it remain the same.

In this article i would like to explore flat endmills.

HSM is not about ramping up your speed/feed overrides to 200% and puling out your smartphone to record another youtube-worth video.

What is HSM?

HSM is a complex of programming, machining and tooling techniques aimed at radical increase of productivity.

Programming

The cornerstone of HSM is low radial and high axial engagement of an endmill with the workpiece.

There are many CAD/CAM systems that allow you to create HSM tool-paths. Mastercam's Dynamic milling and SurfCAM's Truemill are some of them.

When radial cutter engagement with the material is smaller than the radius of the tool an interesting thing happens.
Chip load- the distance the tool advances per cutter revolution per tooth- does not equal the actual chip thickness anymore.
Chip thinning mainly happens at radial engagements below 30% of the diameter.

In order to get compensated chipload you need to multiply recommended by manufacturer chipload by the chip thinning factor.

Usual Radial Engagement for HSM toolpaths however is between 5 and 15%.

Axial depth of cut varies depending on geometry, but

Radial Chip Thinning HSMAdvisor Screenshot

Sevaral weeks ago i saw a post on CNCZone.

A HSMadvisor user Peter Neil used it to calculate cutting conditions for cutting a block of pre-hardened stainless steel.
His machine was Tormach.

Here is an exact copy-paste from that forum post:
_____________________________________________________________________________________

Did a test cut on the Tormach today using feeds & speeds from the latest version of the excellent HSM advisor.
To make it interesting, I did the cut using some 1.2085 pre-hard Stainless Steel as I have plenty of stock of it and have a job in mind for this, and wanted to see how it cut on the Tormach.
The material is like a stainless P20, at 16% Chrome/1% Nickel & 0.5% Sulphur (which makes it slightly free-er machining) and is hardened to around 33-35 Rockwell C, so I used the HSM advisor guidelines for machining P20 rather than Stainless. Cutter was a 10mm 4-flute Carbide TiAlN coated EM.

So...... ticking the HSM/Chip thinning option I got a speed of 5120 and feed of 2214mm/minute( 87 IPM). I used a DOC of 10mm and WOC of 0.5mm/0.020" - and turned off the flood cooling to machine it completely dry. The finish pass on the 1st level was 15mm DOC and 0.5mm WOC and slightly lower speeds/feeds.

Loaded up a 40mm x 63mm block , pressed the start button, and it went from this....





...to this!