McHenry Forum - Crash Reconstruction & Simulation

Nov 29: some additional questions have come in from potential users so we add them and our answers here: Q: I've watched several of the tutorial videos linked to your website and I like what I see. When you start a new project and you need a roadway you will say "let me select the two lane inte...

We've received additional information on the 2017 PA State Police tests and so will start adding additional videos soon. This first video is a HOW TO bring in a DXF file and scale and synch a bitmap (overhead picture or Google earth pic) to the measurements in the DXF file How to Scale a bitmap to a...

Q: (rcd from email) I would be interested in seeing an overview of the software and its strengths/weaknesses for simulating collisions. We’ve been using PC-Crash for years and I’m not aware of anyone using msmac in our neck of the woods. I would be interested in seeing how msmac can add value to a c...

The following is a section from our 2008 McHenry Accident Reconstruction book on the Drag of a vehicle during spin out:

• Vehicle Spinout on flat surface

Q: I was reading your response on INCR and following your references on your web site. You mentioned in those posts you had more to say about using Monte Carlo analysis. I couldn’t find any more on your site. Can you point me to that info? A: In a post we have on Some Momentum Misconceptions we spok...

Hi George, There are a couple ways we model external forces in msmac3D. First our snag impulsive option allows modeling things like pole impacts or interactions with objects on the road The nodes (aka hardpoints) allow interaction of the vehicle structure with the terrain (bottoming out, barriers, b...

Questions on Cloud scans: we support xyz and e57 and are expanding and enhancing our capabilities.

Nov 2017: Since this question comes up frequently this comment is to bring it up to the top of the forum

Update Mar 2021: Please see our new Subscription/Lease Pricing post! 2021: We NOW have LEASE pricing! See msmac3D Subscription/Lease Pricing information We've changed our pricing structure to Subscription/Lease pricing, see below for information on pricing for other crash reconstruction software pr...

https://www.youtube.com/watch?v=Ia1eQRuz_OE HOW TO: How we quickly setup the Preliminary PA State Police Crash test After seeing a video of a crash test run today at 2017 PA State Police Crash Conference we set up a project to provide a general reconstruction comparison. This video is a HOW TO step...