How to change ramping in HSM

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When I make a pocket in Inventor, and then try to machine it with HSM, it takes forever to start cutting, and it swirls down into the part and moves very slowly. How do I get rid of this?

Thanks for the question Marianne!


CAUTION: The change below should only be done when machining soft materials like wax, Renshape, butterboard or styrofoam. If in doubt, Leave it alone!

This is put there automatically by the post processor when you chose a pocket and it is called a “helical ramping” operation. It does this automatically so that the tool engages the material very slowly, to decrease chip load and make it so the tool does not break. Notice that in this instance the tool is going all the way to the bottom of the pocket.

To change this in the pocketing operation, edit the operation, choose the linking tab, and scroll down to the ramp menu. If you wanted to speed up the helix in softer materials like renshape or machineable wax, you can just change the ramping angle to something greater to make it go faster. See below:

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DobotStudio: The Basics


How do I get started with DobotStudio? There really isn’t much info out there yet on how to use my Dobot Magician Robotic Arm.


Well, first off, here’s just the tip of the iceberg…. more to be added as I figure stuff out. This robot can be taught and record points quickly and easily, and is also the most accurate and affordable educational robot on the market. Here is a start to some basic ways to get going with a really incredible software/hardware combo that is DobotStudio/Dobot Magician. See the tutorials below… Most of them not much over one or two minutes… Use Control + F to find what your looking for!


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My DDP class (IED) could sure use some help with the train tutorials!  Any solutions?


Of course we do! Special thanks to Jason Hyatt from Cazenovia for doing all of these in Camtasia. After all DDP (IED)is the gateway to the coolest course of them all: CIM!

Below are nine tutorials that you can use in your DDP (IED) class!


Train Body: The focus of this tutorial is:- hole tool, tangent work surface, threaded hole, mirror tool (as 3d feature), offset work plane, tangent geometric constraint, trim tool, browser bar editing (moved fillet above holes to prevent holes from being rounded), fillet tool


Cow Catcher: The focus of this tutorial is:

– loft, offset work plane, project geometry, shell tool, offset tool, chamfer

 Hitch Magnet & Peg: The focus of this tutorial is:

– concentric circles & revolve


Link Arm & Link Pin: The focus of this tutorial is:

– define unique shapes using basic shapes, concentric referenced holes

– revolve align center mark of arc to ensure a perfectly rounded top (not noted in drawing besides SR note)


Train Stack: The focus of this tutorial is:

– revolve, counterbore hole, hole with drill point modified to be flat bottom, angular dimension, construction line, wireframe view

Axle Peg: The focus of this tutorial is:

– revolve, offset work plane, hexagon socket, thread – with offset, chamfer


Train Wheel: The focus of this tutorial is:

– using rectangles and cirlces to define unique shapes, fillet tool, revolve, circular pattern, angular dimension, trim tool, hole tool with concentric reference


Train Assembly: The focus of this tutorial is:

– how to assemble all of the parts in an assembly file


Exploded View: The focus of this tutorial is:

– how to make an exploded view

Inventor, rectangular pattern, circular, hole, revolve sketch plane tangent, trim, part, additive, subtractive, modelling, modeling, edit, dimensions

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