HSMAdvisor/FSWizard got featured on DIY Engineering!
It seems like HSMAdvisor's machine profile settings and power compensation work just fine even for as small of a CNC machines as Nomad Carbide 3D:
Great news for our many Fusion 360 users!
Starting with HSMAdvisor v2.1.0, you can import HSMWorks hsmlib files into the HSMAdvisor database.
Holder import is not yet supported, but I will add it in one of the next updates.
Please have Fusion export the tool library in HSMWorks .hsmlib format
Not sure what to do with allowing HSMAdvisor to export tools into F360...
Please let me know if you are interested in this functionality, and I will work on it.
Take it for a ride and let me know if there are any issues with it!
https://hsmadvisor.com/?page=Download
Cheers!
I just uploaded a new standalone and Mastercam 2021 hook version of HSMAdvisor Machinist Calculator.
In it fixed the issue with the loading of older database files and updating DB UI.
Also from this point on HSMAdvisor will switch to Semantic Versioning in the following format: major.minor.build
Check out the latest version here: https://hsmadvisor.com/?page=Download
Have an enjoyable and safe weekend, everybody!
In version 2 we tried to keep the familiar layout of HSMAdvisor.
HSMAdvisor 2 is currently at the "Release Candidate" stage.
Every month I will be publishing an update that will reset its trial counter, so people can use it for free until it is finally production-ready.
The best thing of all is HSMAdvisor 2 license is completely compatible with its predecessor!
Download HSMAdvisor 2 from here!
Centerdrill Calculator added in FSWizard 1.7.9!
Check it out at https://fswizard.com
Calculator shows reference for Imperial and Metric centerdrills and allows to calculate the depth of the drilled hole based on the countersink hole diameter and vise-versa.
Also this new version features better support for wide screens.
The input fields are now stacked in 3 columns when screen width is large enough to fit them.
If you want to sign up for the beta test, please read here: https://zero-divide.net/?shell_id=151&article_id=5271_free-fswizard-pro-for-everybody
Cheers!
Often times CNC programming tutorials only teach you how to create the tool-paths and not enough attention is paid on showing how to properly hold parts being machined.
At the same time efficient workholding is an art in it self and mastering it could drastically improve shop productivity and accuracy.
Without further ado let's jump into the workflow.
We would have to look at the drawing, tolerances and the CAD model to develop the machining strategy.
This particular part has tight (+/- 0.001) tolerances between the features located on the top and the bottom sides. In addition to that it has a 2.5 degree draft angle on external walls.
Thus I decided to not use the soft jaws approach and machine it in a fixture. Soft jaws are generally OK for tolerances down to +/-0.001" but because of the draft angle the part would always want to pop out of the jaws.
2. First Op: Before
2. First Op. After
3. Machined Fixture
4. Second Op: Bearing Seat
5. Third Op: Finished Part
Due to the current situation with lack of N95 masks in the stores I resorted to 3D print a pair for me and my wife.
I also made the designs freely available on thingiverse: https://www.thingiverse.com/thing:4264883
Here is the description of the project:
High airflow Respirator mask in 3 sizes: Large, Medium and Small.
Large works for a large male face. 125mm height*
Medium for a smaller male face. 115 mm
Small works for a female or a 10 y/o kid face. 105mm height.
*I measure face height from chin to the centre of the nose bridge.)
Designed to take 1 or 2 55mm cotton pads into each of 3 filter housings.
Install filter medium into the bottom of the cap and screw on to the mask body.
Make sure to print 3 caps for each mask as well. Caps are the same for all mask sizes.
Used white window insulation sticky cord on the inside to add cushion and improve insulation.
Had to also use a file and fine sanding paper to make sure the mating surfaces on the mask body are smooth and do not have any air gaps.
Disclaimer: I designed and printed this for me and my family. It has not been tested, and although I designed with safety in mind, I do not claim it can prevent any infections or viruses. Use at your own risk. PLEASE be careful when testing: different cotton pad brands have different density and 2 pads per filter may cause difficulty breathing! Please make sure to remove the filters and sanitize the mask and caps after each use.
The models are designed in Fusion 360.
Parts printed on Creality Ender 3S Printer with the following settings:
1 mask plus 3 caps takes about 14 hours to print at: 75mm/s.
Please wash your hands and stay safe.
We will get through this!
Large Mask
Medium Mask
Small Mask
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.
Good, slow and very safe starting point.
Twice as aggressive as before, but we can still push it further.
Here we can see the lack of machine rigidity starting to show. But at 65% feed rate it is still alive.
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!
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.
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