Probes

From Shopbot Wiki

(Difference between revisions)
m
m
Line 5: Line 5:
One of the most straightforward and least expensive approaches to digitizing is to use a contact probe, which signals each contact with an object so that the location of the probe at that point can be recorded to define a point on the surface or edge of the object. The mechanism can be as simple as a sensitive switch that is triggered by slight motion of the probe.
One of the most straightforward and least expensive approaches to digitizing is to use a contact probe, which signals each contact with an object so that the location of the probe at that point can be recorded to define a point on the surface or edge of the object. The mechanism can be as simple as a sensitive switch that is triggered by slight motion of the probe.
-
 
+
[[Image:probe01.jpg|frame|ShopBot Digitizing Probe]]The ""ShopBot Digitizing Probe"" allows you to use your ShopBot to map the 3D shape of an object or to record the object’s outline. The probe is chucked up in the collet of your router or spindle. It works by moving towards and just contacting the part with its stylus. At contact, an internal switch is triggered. The switch signals the software to record the 3D location of the contact point and move on to the next point. The internal switch in this digitizing probe is optical and highly reliable.
-
[[Image:probe01.jpg|frame|Wikipedia Encyclopedia]]The ShopBot Digitizing Probe allows you to use your ShopBot to map the 3D shape of an object or to record the object’s outline. The probe is chucked up in the collet of your router or spindle. It works by moving towards and just contacting the part with its stylus. At contact, an internal switch is triggered. The switch signals the software to record the 3D location of the contact point and move on to the next point. The internal switch in this digitizing probe is optical and highly reliable.
+

Revision as of 18:01, 24 June 2007

Contents

Introduction to Digitizing

The controlled motion capabilities of a CNC tool make it possible to use the tool to digitally sample or scan an object in order to record the shape of the object. The data from the sampling can be used to cut a new version of the part, or can be imported into a design program for further work. An object can be scanned in many ways, and the digital sampling can involve contact with a probe, or may be a non-contact process based on optical or imaging technology. In all cases, the final data are coordinate points representing either the outline of the object (2D) or its shape (3D).

One of the most straightforward and least expensive approaches to digitizing is to use a contact probe, which signals each contact with an object so that the location of the probe at that point can be recorded to define a point on the surface or edge of the object. The mechanism can be as simple as a sensitive switch that is triggered by slight motion of the probe.

ShopBot Digitizing Probe
ShopBot Digitizing Probe
The ""ShopBot Digitizing Probe"" allows you to use your ShopBot to map the 3D shape of an object or to record the object’s outline. The probe is chucked up in the collet of your router or spindle. It works by moving towards and just contacting the part with its stylus. At contact, an internal switch is triggered. The switch signals the software to record the 3D location of the contact point and move on to the next point. The internal switch in this digitizing probe is optical and highly reliable.


The first step is to mount the indexer so that it's firmly attached to the ShopBot and accurately aligned with the ShopBot's movement. Next it needs to be connected to the control box and the correct software values entered. Finally it's movement needs to be tested to make sure that everything is moving correctly.


Hooking Up Your ShopBot Digitizing Probe


Probe Operation


The Copy Machine

  • Creating Indexer files manually
  • Other software


Doing "Outlines" with the Probe

  • Manual Indexing and multisided cutting


Probing without a Probe

  • Manual Indexing and multisided cutting

Contributors
Ted, Martin2Reid
Personal tools