CAM newbie (Versamill, dentmill, and PMMA)

[zellyen]

Hello all,

I am a complete novice when it comes to milling. I recently decided to volunteer at a university where they own a versamill. They want to get it up and running (as no one utilizes it!). Their milling software is Dentmill. Things are now up and running, however, I am running into a few issues.

When I try to mill PMMA provisionals (off of a scan of the prep),it always comes out loose (overmilled for some reason). Even when I minimize the cement spacer in exocad, it does not appear to help.

For anyone who owns the same hardware/software, is there a setting that I need to play around with? Is there an inherent setting for PMMA material?

Any insight is greatly appreciated.

Thank you

 

[CoolHandLuke]

you should probably get in contact with @brayks or @al morad at axsys. Dentmill was discontinued eons ago. dentmill 2015 was the last dental software publication.

 

[JMN]

Hello all,

I am a complete novice when it comes to milling. I recently decided to volunteer at a university where they own a versamill. They want to get it up and running (as no one utilizes it!). Their milling software is Dentmill. Things are now up and running, however, I am running into a few issues.

When I try to mill PMMA provisionals (off of a scan of the prep),it always comes out loose (overmilled for some reason). Even when I minimize the cement spacer in exocad, it does not appear to help.

For anyone who owns the same hardware/software, is there a setting that I need to play around with? Is there an inherent setting for PMMA material?

Any insight is greatly appreciated.

Thank you

Greetings Earthling! Welcome!

 

[brayks]

Spindle rpm, feed rates (ie cutting speed),number of flutes, tool diameter...etc. etc. all relate to each other. Changing one variable requires re-calculating the others. There are formulas to do that, when milling strategies are put together. Ask Steve from Axsys ( @brayks ),he could explain better than I can

you should probably get in contact with @brayks or @al morad at axsys. Dentmill was discontinued eons ago. dentmill 2015 was the last dental software publication.

For sure.
Please send me a message with your contact info (school name, your name, phone number and email address) and we will follow-up to get you sorted.
Best
Steve

 

[zellyen]

cannot seem to send a direct message. Do I have to have a certain post count or something?

 

[brayks]

cannot seem to send a direct message. Do I have to have a certain post count or something?

Not sue why. Please send me an email with your information and I will see you are contacted.
my email address is: [email protected].

 

[JMN]

cannot seem to send a direct message. Do I have to have a certain post count or something?

Not sue why. Please send me an email with your information and I will see you are contacted.
my email address is: [email protected].

5 posts minimum are required to post pictures or send private messsages. Keeps an uncouth sales weasel types from pming hundreds of users on first arriving.

 

[JayH]

Perhaps you have Dentmill treating the PMMA as if it were Zirconia and applying an enlargement factor?