My Scan Projects

[greenskynet]

a quick scan for reverse engineering .
it is a drive gear wheel for an excavator.

[greenskynet]

my new Reverse Engineering case .
it is an Aluminum part with huge corrosion.
I redesign it for making patterns for AL casting.

[Rudd]

Somebody who can scan one of my works? https://www.atelierinbeeld.be/sites/def ... k=iD2WNWIZ. It's about 110x70x60 cm.. Price? In fact, I have more works but want to start with one:-) 0488/707569.Kindly,r.

[greenskynet]

My new scan, a double suction impeller
450mm diameter

This was one of the best impeller I've scanned so far. Very accurate machining and very beautiful casting.
all deep areas are captured successfully and the reverse engineering was satisfying.

I scanned it from about 1.2 meter distance, and you can see the surface details on my scan.

and let's take a look on the accuracy on this scan

on the original part, I read this diameter for about 264.98 on one side and 264.99 on the other side, using my digital caliper.
and you can see the related numbers on my scan. The difference is less than 0.01mm~0.02mm.
and this is not accidental numbers. If it was accidental, it should not been repeated in the diameter of both sides.

[greenskynet]

New Reverse Engineering project
it is a gearbox cap.

I got excellent accuracy on this part. 0.01mm on machined diameters and also for positioning pins.

this is scan data, in modified version of FlexScan3D

and this is the CAD design and also the CNC milling part, for casting pattern (casting mold)

[greenskynet]

New Reverse Engineering project
it is a gearbox cap.

I got excellent accuracy on this part. 0.01mm on machined diameters and also for positioning pins.


GearBox scan FlexScan3D_1A.jpg
this is scan data, in modified version of FlexScan3D

GearBox scan FlexScan3D_2A.jpg
and this is the CAD design and also the CNC milling part, for casting pattern (casting mold)

You can download the related files (Scan Data and CAD files) from the following link on my thingiversechannel:
https://www.thingiverse.com/thing:6593744

[greenskynet]

New scan and Reverse Engineering: Oil cartel
This is big 1.3 meter Aluminum item, it was corroded heavily.

its surface was so dirty and greasy, and there was no time to clean it.
I only applied talcum powder on it (+ small amount of ethanol).
but I needed accurate position of the hole on this part. so before scanning, the holes were cleaned perfectly.

This was a big object and my cameras are high resolution, so if I scan it at max resolution, then the PC get slow and the final mesh will be so heavy.
in this case, I used CameraResolutionDecimation option in the software to reduce pixel density of the cameras. This option reduce Cameras pixel density, almost without losing any of the details on the scans and increase processing speed. so by using this option, I scanned the object very quickly, and it saved all scans details and holes position for me.

Scanned in Modified version of FlexScan3D and Reverse Engineered in CATIA
Cameras: Daheng 6.3MP (with Decimated Resolution down to 50%)
Projector: Casio Laser Projector HD resolution
Total Scan time: less than 25 minutes

[greenskynet]

Cloning a dead impeller to a new functional one. My new Reverse Engineering case

Scanned with 6.3MP cameras and HD projector.

[greenskynet]

2.2 meter impeller 3D Scan + Reverse Engineering .
There is no limit to the dimensions and size of the object for our DIY Scanners. We scan a wide range of objects with the same setup, from 1 mm to several meters.

This impeller is one of the big objects I've scanned. the diameter is 2.2 meter and it weights about 1000kg.
the interesting thing about this impeller is that it had a heavy crash; when it was spinning at high speed, on a tall tower, the support shaft broke and the spinning impeller fell down from a height of 43 meter, and caused a lot of damage to the nearby facilities.

I scanned this impeller for two purpose:
1: check deformations on it and if it is possible, we can repair it. because the company didn't have any pieces of it in stock.
2: Reverse Engineering, and preparing manufacturing drawings and technology. so we can make some pieces of it and keep them is stoke.

I scanned it section by section and software automatically aligned scans by the markers. the scan process took about 2.5 hours.
I used my 6.3MP Daheng cameras and a laser projector. so I easily scanned it under normal ambient light and I achieved very nice accuracy on this scan; The max error on the center bore is less than 0.06mm.

in this video, I recorded some part of the scan process and then the final result after Reverse Engineering: https://www.youtube.com/watch?v=fm-WT8g8_k0

https://www.youtube.com/watch?v=fm-WT8g8_k0

[greenskynet]

New scan: Excavator Tooth

all internal and external surfaces have been scanned, and finally a Reverse Engineering CAD model was created based on the scan data.

The scan was done in modified version of FlexScan3D and using my DIY Scanner. Then I redesigned this part in CATIA based on the scan data, and finally I designed casting pattern (casting mold).

For the first sample of casting pattern, we make it with wood (HDF), and then we can make an Aluminum casting pattern for mass production.

I uploaded scan data (.stl file), you can download it and use it as an exercise for Reverse Engineering:
https://www.thingiverse.com/thing:6814060