Show your DIY Calibration board

Which equipment do you use for 3D-scanning?
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Oteck
Posts: 77
Joined: 11 Nov 2016, 21:21

Show your DIY Calibration board

Post by Oteck » 18 Dec 2016, 01:49

Much like my current setup this is modular, i've been saving up for a while to piece the extruded frames. Luckly 20/80 gave me a 15% off sale on black friday so i took advantage of it.

I need to do a proper alignment and trimming in the board as it's off center and the securing bolts protrudes far out that it prevent me from folding it so I have to be careful using a countersink bit

Ugh why are they upside down, stupid iphone
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Mongrel
Posts: 19
Joined: 30 Nov 2016, 01:10

Re: Show your DIY Calibration board

Post by Mongrel » 18 Dec 2016, 03:57

Hi Oteck,

These are my DIY calibration boards. The top and bottom brackets are CNC milled from a solid piece of aluminum, to give it a true 90 degree angle. The boards them-self are 6mm aluminum plate with a 45 degree angle on one edge, allowing the two plates to butt up to each other.

When I did my first test scan, I used a cube that was 100mm exactly. When I bought the STL file into Solidworks I measured it and was really happy to find that it measured 100.1 x 100.07 x 100.08mm.
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Curiousjeff
Posts: 123
Joined: 16 Nov 2016, 22:31

Re: Show your DIY Calibration board

Post by Curiousjeff » 18 Dec 2016, 16:55

Great topic !

Some questions:

How is the pattern printed ? On what kind of paper ?
Do you use different printing technique depending on size of panel

How is the print "glued" to the board ? How to have the pattern perfectly square to the panel ? How to have a perfectly flat surface (no bubbles, etc...).

Here is my small calibration panel. I really want to improve my panels.

3D printed brackets / Back of bathroom mirror tiles /Laser printer patterns on paper and glued.
Attachments
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Oteck
Posts: 77
Joined: 11 Nov 2016, 21:21

Re: Show your DIY Calibration board

Post by Oteck » 18 Dec 2016, 17:58

I had mine done at a sign shop printed on a aluminum composite panel of 1/8" thick with a layer of opaque/matt clear. this will remove any shine when scanning. To be accurate it's more like they printed a decal and line it up on the panel, the expensive part is the panel itself.

I wanted this setup to be sturdy, durable, and modular so i went with this over budget route. Already thought of making magnetic sheets that can be stuck on it when needed but i need those materials first

Mongrel
Posts: 19
Joined: 30 Nov 2016, 01:10

Re: Show your DIY Calibration board

Post by Mongrel » 18 Dec 2016, 20:33

Curiousjeff wrote:Great topic !

Some questions:

How is the pattern printed ? On what kind of paper ?
Do you use different printing technique depending on size of panel

How is the print "glued" to the board ? How to have the pattern perfectly square to the panel ? How to have a perfectly flat surface (no bubbles, etc...).

Here is my small calibration panel. I really want to improve my panels.

3D printed brackets / Back of bathroom mirror tiles /Laser printer patterns on paper and glued.

Hi Jeff,

My pattern was printed out on my A3 printer and then mat laminated. I used Elmers glue stick, applied to the aluminum plates and also to the laminated sheets. I "applied" the sheet to the plate using a credit card to to push out the bubbles as the sheet went down onto the plate.

Mongrel.

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