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Intern
Posts: 35
Member Since: ‎06-25-2017
Message 1 of 8 (514 Views)

3D Scan Alignment Failure

Product Name: HP 3D Scan Pro 5
Operating System: Microsoft Windows 7 (64-bit)

Dear Sirs,

 

Can you please help me with this problem?

I also have a complaint about the HP 3D Scan Pro 5 software.

 

1. When trying to align 2 scans the process fails after over a minute of trying.

The scans are 2 sides of a fish.

The overlap is the edge all around the fish.

The flat bottm (base) has a large area that's flat, and the overlap is complete between the 2 scans.

I align the 2 scans manuall as close as possible, yet the software still can't align the scans.

I tried using both kinds of Free alignment: with Contact Pair Selection checked and unchecked.

Both failed.

This would NOT have happened in David 2.6 or 3.

 

2. Here's my complaint:

When using David 2.6, the software was simple and easy to use for aligning scans.

It allowed you to pick point-pairs more than once for aligning various scans.

You picked the first pair, and the scan IMMEDIATELY came together at that point-pair.

Then you picked another set point-pair, and the scans IMMEDIATELY came together.

You could do that repeately until the scan was aligned nicely.

Then you picked the Align button and the scans aligned.

RARELY did the alignment fail.

Also, the overlap didn't need to be a large % to work right.

 

The HP 5 scan software allows ONLY ONE PAIR OF PICK-POINTS.

THIS IS A VERY BAD "enhancement" to the software.

Someone made a BAD BUREAUCRATIC DECISION to have this done.

 

3. I now request that you RETURN TO THE SOFTWARE TO THE ORIGINAL DAVID METHOD OF MANUAL ALIGNMENT.

 

If there's a remedy during the interim, I would be very grateful for someone to tell me what it is.

 

Thanx ... Chris

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Grad Student
Posts: 316
Member Since: ‎10-31-2016
Message 2 of 8 (479 Views)

Re: 3D Scan Alignment Failure

Hi Chris,

 

I will forward your complaints and requests to developer team.

Meanwhile, for better alignment try to have enough overlap between scans, avoid plain surfaces for alignment, use surface feature option.

I am an HP Employee

Original David Team Member
Intern
Posts: 35
Member Since: ‎06-25-2017
Message 3 of 8 (471 Views)

Re: 3D Scan Alignment Failure

Hi drndadoo,

 

Thanx for your reply.

How much overlap is required?

I already tried running the Alignment with all the various options, but the program failed to align the scans.

 

However, I then tried Aligning the pieces in another program, and it works fine.

That tells me the change that the developers made actually DOWNGRADED the program by introducing a defect into it.

This type of thing doesn't make any sense to a reasonable person.

We have a saying in the industry: "Don't fix it if it ain't broke".

So I ask the question: WHY DID THEY CHANGE A PERFECTLY GOOD WORKING FUNCTION IN THE PROGRAM?

 

Cheers ... Chris

 

Grad Student
Posts: 316
Member Since: ‎10-31-2016
Message 4 of 8 (466 Views)

Re: 3D Scan Alignment Failure

How much overlap is required?

 

Hard to say, depends on the object. If the object have rich geometry it is easy to align scans if geometry is plain you will need some tricks to get it done. The trick I use is to scan 2 objects, that are similar in size, together. I recommend 30% overlap between scans and so I plan my scanning jobs.

I am an HP Employee

Original David Team Member
Intern
Posts: 35
Member Since: ‎06-25-2017
Message 5 of 8 (457 Views)

Re: 3D Scan Alignment Failure

Thanx for the 30% overlap 'tip'.

 

But I must say, 30% is quite a lot of overlap.

 

I remember when only a little overlap was needed in David 2.6.

That's what I expected w/this "upgraded" version of David (= HP 3D Scan Pro 5).

 

Most of the objects I scan are very thin or not wide.

See attached pic, relevant to this discsussion.

I scanned both broad sides including the edge all around on both scans.

Then attempted to Align.

There was more than enough data to do the align.

Apparently there is a weakness in the "upgraded" version of this David HP software.

Like I said before, I had no problems aligning this type of scan set in version 2.6.

 

Do you remember how well Align worked in David 2.6?

 

Fish-BadHoleFill1a.jpg

 

 

Intern
Posts: 35
Member Since: ‎06-25-2017
Message 6 of 8 (431 Views)

Re: 3D Scan Alignment Failure

[ Edited ]

dr,

What response did you get from the HP developer team?

I have worked with various CAD software programs since the last 80's.

if there's one thing I discovered, it's the developers are controlled by the investors.

The investors dont' give a rat's arse about their customers' needs.

So my question to you, as the MEDIATOR of this communication, between ME and the CRIMINALS at HP is:

WHAT DO THEY PLAN ON DOING TO FIX THIS DEFECT, AND WHEN WILL THE FIX OCCUR?

i'm asking for LOGISTICS and DATES.

[Content Removed].

Also notice how LONG it took them to produce and post on the internt a decent introductory set of videos explaining how to setup and use the scan system?

Doesn't take a rocket scientist to see what's going on.

So let me know what they have decided ON MY ISSUE.

I want to know.

That way I can make a decision whether to keep this sysetm or to cast it aside.

Maybe that's what they want? For their customers to dump their 3d scan system?

It sure does seem like it!

Thanx ... Chris

Grad Student
Posts: 316
Member Since: ‎10-31-2016
Message 7 of 8 (402 Views)

Re: 3D Scan Alignment Failure

No need for  bad words I just want to help. Check your inbox.

I am an HP Employee

Original David Team Member
Intern
Posts: 35
Member Since: ‎06-25-2017
Message 8 of 8 (388 Views)

Re: 3D Scan Alignment Failure

dr,

Please note that my "bad words" are not directed at you.

You have done a very good job of offering tech help.

Thank you for your assistance.

My gripe is with the "decision-makers" at HP.

Cheers ... Chris

† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation