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But I’m not sure if I’ve understood your question correctly.
Actually, you only need to drop the DXF file onto the graphics screen using drag & drop, for example. Then the max. diameter of the workpiece plus a little safety should automatically be displayed at the bottom left in the “Start diameter” input.
By clicking on the little up/down arrows of the input, the value changes and the green tool path is updated with a slight delay.
If this does not work, please save the project file and make it available to me here.
Then I can better understand the problem.
One more question - is there a way to limit the max depth of cut when threading?
I am finding that the first few passes are a bit too deep for my setup, and have to increase the number of passes quite drastically to avoid stalling the stepper the first couple passes.
I have recently been working on the manufacture of wings for airplane models. It took some time and has resulted in a new function for cutting polystyrene with a 4-axis foam cutter machine. I hope to be able to present a video about it here soon.
After that I would like to get back now to milling and turning. In this context, I noticed a video that I would like to recommend to all people who are interested in my free program. In my opinion, it gives a very good overview of the basic structure of the program and how to use it.
The documentation of the ‘Foam Cutter’ function has become a little longer than originally planned. I have therefore decided to split everything into several short videos.
The first part deals with the settings and basic operation of the 3D model, I would like to present to you today.
The second video will deal with the cutting out of letters and symbols, while the third part will finally describe how to make the airfoils.
The documentation of the ‘Foam Cutter’ function has become a little longer than originally planned. I have therefore decided to split everything into several short videos.
The first part deals with the settings and basic operation of the 3D model, I would like to present to you today.
The second video will deal with the cutting out of letters and symbols, while the third part will finally describe how to make the airfoils.
The documentation for the “Letter” mode has now also been completed.
The video describes how to cut out letters and simple symbols from polystyrene.
To be honest, I underestimated the possibilities at first. This may be because I am not a model maker myself and therefore don’t own a polystyrene cutting machine.
However, while making the video, I came up with so many possible applications that I am now thinking about building myself such a machine.
In my opinion, polystyrene cutters are highly recommended for people who are always looking for new and original ideas for advertising, presentations, shop window decorations, birthdays, weddings, anniversaries, etc.
Once again there are 2 good new videos about GrblGru from “Embellished Turnings” that I would like to recommend to you.
This time the focus is on the lathe and thus on the GrblGruLathe program.
The first video deals with the basics of Lathe functions such as the production of a component from a DXF file. The 2nd video describes how to cut threads.
From the new version v6.0, GrblGru now also offers the option of creating simple geometry objects such as circles, arcs, rectangles and polylines.
In the video I briefly introduce the various functions.
Hi GrblGru,
First, I want to sincerely thank you for your incredible hard work in supporting CNC hobbyists with this amazing free CAM program.
I’ve been working on a tangential knife CNC, but I couldn’t find it listed in the Tools. Is this a bug, or am I overlooking something?
Thank you The tangental function is a little hidden. You can create a normal cut job. Then select the TANGETIAL_BLADE tool instead of a spindle.
Please download the latest beta V6.1 version. I have just fixed another bug.
Sorry, that was my mistake. I have only now got round to fixing the bug. Please download the new beta version V6.2.
It certainly makes sense to create a template for this operating mode. Please make sure that you assign a suitable value to the ‘Activation Angle’ parameter. Otherwise the blade will always lift off when the angle changes.
Another video in German, which also illustrates without text how to machine turned parts on the milling machine. It also shows how you can use your milling machine as a lathe.
As a supplement to my last, more theoretical video, today I would like to show you milling turning in practice. I have chosen a chess piece as a test object, which is intended to represent a possible area of application. Based on the experience gained in the tests, I had to make significant changes to the entire process. (V6.10)
Although milling turning is certainly no real competition for turning on a lathe, I am pleasantly surprised by how well it works. There are a lot of small turned parts, such as game pieces, handles, furniture knobs, etc., that can be produced very well with this method.
In addition to the familiar possibilities of a turning axis, milling turning thus offers another convincing argument for sensibly expanding the range of applications of a conventional 3-axis milling machine.
Unfortunately, the video is only available with German subtitles. I would be very happy if someone would try out milling turning and perhaps even make a video of it. Maybe even in English.
Recently, I had a few small projects where workpieces had to be machined from two sides. Until now, I had always solved this problem using the familiar method with dowel pins.
However, since there were several fairly small parts that could not be milled on a common plate, I decided to use a different manufacturing method.
This requires a centering vise, which has the great feature that the center between the clamping jaws always remains in the same position.
So if you can set the reference point in the Y direction to this position, all you need is a stop in the X direction. This will determine the center of the component.
I don’t know if everyone is already familiar with this method. That’s why I would like to briefly introduce it in the video. Unfortunately, I forgot to mention a possible correction to the Y position of the reference point in the video.
If a constant offset is always visible on the finished workpiece, the Y axis can be moved in the correct direction by this amount and the reference point can be reapplied.
I used a new system to create this video. It should be possible to select the language of the subtitles. Please let me know if this does not work.
