Reddit mentions of GENERAL TOOLS, 837, CONTOUR GAGE, 6-Inch

Countour Gage - $18.

Or what looks like this exact one, $9.

I guess you could use a contour copier in segments. You'd need to establish some kind of baseline to measure off of, but that's how amateur hour right here would do it.

It's a contour gauge. For transferring a contour to a work piece.

Like this:

https://www.amazon.com/General-Tools-Contour-Duplicator-6-Inch/dp/B00004T7RA

It's for copying the profile of moulding.

Edit: This specific one is a General Tools 837 Contour Gauge Duplicator

https://www.amazon.com/General-Tools-Contour-Duplicator-6-Inch/dp/B00004T7RA

You could use a contour guage to copy the outline exactly onto paper and then scan that onto your computer. Then use that to create a vector and import that into your 3D software.

If you need any more precise details on how to do that just ask!

If you do any tiling, I also use the hell out of this:

General Tools 837 Metal Contour Gauge, Profile Gauge, Shape Duplicator, 6-Inch (152mm), Stainless Steel Pins, Precisely Copy Irregular Shapes For Perfect Fit and Easy Cutting https://www.amazon.com/dp/B00004T7RA/ref=cm_sw_r_cp_api_i_v14UCb2S9WJW1

General Tools 837 Contour Gauge Duplicator, 6-Inch https://www.amazon.com/dp/B00004T7RA/ref=cm_sw_r_cp_api_jUNCzbW4CSXA1

An oscillating multi-tool with a cutting head and then judicious use of a chisel/screwdriver and hammer would let you cut a little into the jamb, letting the new flooring go under it a bit to hide the ugly cuts. (the same thing could be accomplished with a flush-cut saw if manual is your style)

You could also get a profile/contour gauge and use that to duplicate the jamb shape exactly and transfer it onto the tile and very, very carefully cut out the shape using a sharp knife. This method will be harder, of course.

I think I would skip the 3D scanner and work with measurements instead.

I would buy a $10 tool to measure contours like this: https://www.amazon.com/General-Tools-Contour-Duplicator-6-Inch/dp/B00004T7RA

I would also buy a small dry erase board to capture notes in the background of photographs. My dry erase board would have messages such as "cross section #1" next to the contour measurement tool so you can keep your contour measurements organized.

Lastly, I would buy graph paper with your preferred square spacing, I would transfer the captured cross-section contours onto known coordinates on the graph paper. The measurements from the graph paper captures can be converted to splines in your favorite CAD software and then converted to sweeps or lofts.

Marking Gauge

Contour Gauge

Pull Saw

There's a shaping thing I see advertised a lot on the WoodWorkWeb Youtube channel, except today when I want to find it. But it's a bunch of straight edges that are held together with wing nuts and you use to to replicate odd shapes for cutting to fit.

https://www.amazon.com/General-Tools-Contour-Duplicator-6-Inch/dp/B00004T7RA

Like this?

Here you go!
https://www.amazon.com/dp/B00004T7RA/ref=cm_sw_r_cp_apa_i_Bz5wCbKK4YN5W

You could use a contour duplicator like this. Then just take a good photo of it on a contrasting background and use it as a reference to create your curve

https://www.amazon.com/General-Tools-Contour-Duplicator-6-Inch/dp/B00004T7RA/ref=pd_aw_fbt_469_img_2?_encoding=UTF8&pd_rd_i=B00004T7RA&pd_rd_r=dbd773db-b16a-11e8-a8ea-092258445276&pd_rd_w=EAGxj&pd_rd_wg=ogXXZ&pf_rd_i=mobile-dp-sims&pf_rd_m=ATVPDKIKX0DER&pf_rd_p=dd8a995f-8b57-442f-a55e-88872c7ccc7b&pf_rd_r=DST0T5R1GWF3XSA0G4KB&pf_rd_s=mobile-dp-sims&pf_rd_t=40701&psc=1&refRID=DST0T5R1GWF3XSA0G4KB

• Use this...
  
  
• Copy the design onto your material
  
  
• Cut it out
  
  
• Profit

A profile guage.

This will really help, plus a coping saw and some caulk.

https://www.amazon.com/gp/product/B00004T7RA

this is a contour gauge

For complex shapes, I prefer one of these

http://www.amazon.com/General-Tools-6-Inch-Contour-Duplication/dp/B00004T7RA/ref=sr_1_1?ie=UTF8&qid=1368369782&sr=8-1&keywords=contour+tool

They are fantastic for transferring those shapes to wood, metal etc.

I would suggest snapping a chalk line on your existing countertop, about an inch away from the wall. That way you know you are keeping the contour gauge at a consistent distance from your target shape.

Or this will work as well

Use one of these. It'll be painstaking and you should watch a couple videos on how to do it but you should be able to get almost exactly what you're looking for.

https://www.amazon.com/General-Tools-Contour-Duplicator-6-Inch/dp/B00004T7RA

Contour Gauge Duplicator
https://www.amazon.com/General-Tools-Contour-Duplicator-6-Inch/dp/B00004T7RA

I see this one rated highest and this is the one I personally own for auto body....


General Tools 837 Metal Contour Gauge, Profile Gauge, Shape Duplicator, 6-Inch (152mm), Stainless Steel Pins, Precisely Copy Irregular Shapes For Perfect Fit and Easy Cutting https://www.amazon.com/dp/B00004T7RA/ref=cm_sw_r_cp_api_i_uFFnDb3HJF6P9

Agreed.