September 15th, 2015 by otto_pjm
I’ve had some questions on how to set the parameters in ImagetoGcode, an application built into LinuxCNC, the control software used for some (soon to be all ) CNC routers at the Hack Factory. There are lots of ways you can do this, and your material, application, and bit size all play a role in getting the settings correct. I’ve been cutting a series of lithophanes on my router over the last month or so, so I’ll be going over how I determine what settings to use for them.
For these lithophanes I have a set finish size in mind which is 5″ tall max, and a format of ethier 5″ x 5″ or 5″ x 7″. I know from experience that in Corian, I want to have about an 1/8″ or a little less of depth variation for the images, and I want to use a pixel size of about .005, which is the same size as my bit.
Here’s the ImagetoGcode screen with the settings for one of the planet lithophanes I’ve created.
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June 16th, 2015 by otto_pjm
The CNC Interest Group meet-up will happen again this Sunday 6/21/2015 2:00 PM at the Hack Factory. It is open to everyone, but machine use requires membership. If you have been wanting to get a project cut on a CNC or get checked out on the CNC machines, this is where you want to be to get the process started. Hope to see a good group of folks Sunday.
June 5th, 2015 by otto_pjm
We will be having the first, of what I hope will be many, CNC Interest Group meet-ups this Sunday 6/7/2015 2:00 PM at the Hack Factory. It is open to everyone, but machine use requires membership. The agenda is rather loose, but will likely include, updates on the CNC area, the status of the 4 CNC routers at the Hack Factory. Information on how you can get checked out to use the CNC Routers.
We’ll also be plodding through some of the lovely features of Autodesk Fusion 360s CAM module, and have some cutting demos.
If you have been wanting to get a project cut on a CNC or get checked out on the CNC machines, this is where you want to be to get the process started. Hope to see a good group of folks Sunday.
3D Carving the TC Maker Logo
June 20th, 2014 by danbackslide
If you haven’t heard yet, the kind folks at Inventables have donated a Shapeoko desktop CNC kit to Twin Cities Maker. The kit arrived Thursday afternoon — time to put it together!
We’ll be starting out at 5pm tomorrow, Saturday 6/21. If you’re interested in helping out, please come on by. There will be something for everyone to do. Of course if you just want to hang out, that’s cool too. The more the merrier!