4 votes
Accepted

What's the term for 2 Dimensional tracks similar to the ones used on 3D printers?

That is called a gantry robot.
  • 4,346
3 votes
Accepted

What is the best way to attach a 3D printed part to a servo for robotics use?

Sounds more like a material/mechanics of materials problem to me. I'm assuming this is an FDM part, and the M3 nut is metal? The nut will have no trouble stripping this. FDM parts are far from 'full ...
3 votes
Accepted

Cost of material to 3D print

This depends on what you mean by "cost". If you've got your own (or access to a) 3D printer and you're just paying for raw material then you can calculate the raw material cost per cubic distance (...
  • 15k
2 votes
Accepted

3D scanner from Phone Camera

Creating 3D models with this method is very compute intensive, 123d uses many pictures (at least 20), and examines them for feature points that are common in several pictures and by examining how they ...
  • 1,909
2 votes
Accepted

Recommended building materials for building a robot WITHOUT 3D printer?

With consideration cheap, strong enough, not ugly and easy to shape, then my recommendation is you can use clipboard. I have seen people win international robotic competition with robot made using ...
2 votes

Polylactic acid - Can I drill into it?

Usually 3D printed objects are not 100% infill, you can easily drill PLA, however it can delaminate if you push too hard and go fluffy when hot, producing a rough surface and poor quality finish. 3D ...
  • 66
1 vote

MG996R issues with Arduino

tl;dr: use 6 V Those rascals are rated for 6 volts, not the nominal 7.4 V from 2S LiPos. You could imagine a Shenzhen manufacturer's design/value engineer zealously shaving a penny cost per unit by ...
  • 1,226
1 vote

Recommended building materials for building a robot WITHOUT 3D printer?

0.5mm 1x2m^2 sheet metal @ your local hardware store ~ 2EUR metal cutting pliers ~ 4EUR being able to cut it, fold it, punch* it for ventilation - priceless * use a nail and hammer/stone; rest on a ...
  • 137
1 vote

Recommended building materials for building a robot WITHOUT 3D printer?

Cardboard on top of a cheap robot chassis can be quite effective. See this version of Openbot that does not use a 3d printer: https://custom-build-robots.com/raspberry-pi-robot-cars/openbot-your-...
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1 vote

Recommended building materials for building a robot WITHOUT 3D printer?

If you want to build a robot with lots of moving parts, or just a dedicated, aluminum building medium, and dont have a tight budget, you can use Actobotics building parts, from servo city.com (https://...
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1 vote

Recommended building materials for building a robot WITHOUT 3D printer?

Consider things like food storage containers, dishpans, and household storage bins. Some (HDPE?) ones are reasonably stiff yet compliant, and you can readily cut them. Beware the beautiful, crystal-...
  • 1,226
1 vote

Can I simulate/test the model of a robot I am designing to be 3d printed?

You can do something like what you describe in at least 2 softwares: Matlab/Simulink with the Simscape Multibody toolbox https://mathworks.com/help/sl3d/link-to-simulink-and-simmechanics-models.html ...
  • 1,337
1 vote

What's the term for 2 Dimensional tracks similar to the ones used on 3D printers?

Your picture is of linear bearings on what looks to me to be stainless steel shafting. You can also use guide rails, which use a more specialized shaft than just a rod.
  • 15k
1 vote

What's the term for 2 Dimensional tracks similar to the ones used on 3D printers?

By the word "tracks" I would assume you meant the guide rails on which the 3D printers extruder is placed on.The rods which support the movement of the extruder are smooth linear shafts. They are ...
1 vote

Rostock Delta Robot 3D Printer Degrees of Freedom (DOF)

The end-effector of the structure can do 3 translations X Y and Z translations. However more then 1 motor has to be moved in order to execute a pure translation. This means that the desired motions in ...
  • 6,487
1 vote

Turning an epilog laser into a 3d printer?

Anything's possible in the world of fabrication and computers, the question is how much time, effort, and money it will cost you. If you haven't built a 3D printer from scratch before, then it might ...
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1 vote

How a 3d printer moves the header vertically in a MakerBot printer

The printing head does not move in z. The table an the printed model are moving.
  • 1,335
1 vote
Accepted

Is Venetian mirror possible in Autodesk Inventor?

Surface properties like that are really only for cosmetic purposes so it is unlikely any CAD program has that option. However, you may be able to get the appropriate effect by assigning particular ...
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