3d Printers South Africa

Park@82 said:
Impressive. Did you give it a reference image or anything?
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I have done that previously, but it was not necessary for this model. It was described in terms of two orthogonal views - the top and the side. The side view was described in terms of the inside mould line - the face contacting the battery and chassis and then the thickness simply went up and away from this line. The definition consisted of specifying the dimensions point by point from the origin.

In the past I have used software for measuring the xy points on an image. This is normally used for digitizing graphs. I have used these as inputs to CAD. It will be interesting to see what AI makes of this data.

Ultimately I would like to go deeper into photogrammetry to generate 3D models, but this will be a whole exploration on it's own.
 
garyc said:
I have done that previously, but it was not necessary for this model. It was described in terms of two orthogonal views - the top and the side. The side view was described in terms of the inside mould line - the face contacting the battery and chassis and then the thickness simply went up and away from this line. The definition consisted of specifying the dimensions point by point from the origin.

In the past I have used software for measuring the xy points on an image. This is normally used for digitizing graphs. I have used these as inputs to CAD. It will be interesting to see what AI makes of this data.

Ultimately I would like to go deeper into photogrammetry to generate 3D models, but this will be a whole exploration on it's own.
Click to expand...
My problem is that I don't really know the standard terminology. I've made some simple tings with Claude and Openscad but this looks more advanced. I'm not sure how to for example one would get the angles or little bumps for the screw holes.
 
Park@82 said:
My problem is that I don't really know the standard terminology. I've made some simple tings with Claude and Openscad but this looks more advanced. I'm not sure how to for example one would get the angles or little bumps for the screw holes.
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It is not necessary to get too technical, just to specify the dimensions rationally. Those bumps by the screw holes were described as cylinders, rather than the technical term of bosses. In it's reply to me Claude however referred to them as bosses, so it understands the word. Here is an intermediate prompt that I saved before pasting it into the browser. If I remember the only thing I updated from this one was how the thickness was specified (saying that it went up in a perpendicular direction to the IML):

"The UPS bracket is essentially a U shape which covers the battery and bolts to the case on either end. I will describe this in terms of two dimensional projections, one from the top (looking down into the UPS) and the other from the side (looking along the length of the UPS). The x direction is across the width of the UPS, and the y direction is along the length. The z direction is vertically in the UPS.
Top projection: The top projection is rectangular, 86 mm wide in the x direction and 30 mm deep in the y direction. There are four holes at the ends, two at each end. Each pair is at x=4.5mm and x=81.5mm. The y dimensions of each pair is 6mm and 24mm. The diameters of all holes is 3.5mm.

Side Projection. The description of the side projection is the inner mould line (IML) which contacts the battery and the case where it is bolted down. The thickness is arranged upwards from this line. Starting a x=0, the IML projects 9.7mm in the x direction. It then goes 3.6 mm in the x direction while simultaneously 50mm in the z direction. It then proceeds 62mm in the x direction with no change in the z direction. It then goes 3.6mm in x, while dropping 50mm in z. It then goes 9.7mm in x with no change in z. The final part should be symmetric.

The areas around the hole have cylindrical shaped reinforcing projecting 1mm above and below the final part.

Generate an OpenSCAD model of this. Make all dimensions parametric."
 
garyc said:
It is not necessary to get too technical, just to specify the dimensions rationally. Those bumps by the screw holes were described as cylinders, rather than the technical term of bosses. In it's reply to me Claude however referred to them as bosses, so it understands the word. Here is an intermediate prompt that I saved before pasting it into the browser. If I remember the only thing I updated from this one was how the thickness was specified (saying that it went up in a perpendicular direction to the IML):

"The UPS bracket is essentially a U shape which covers the battery and bolts to the case on either end. I will describe this in terms of two dimensional projections, one from the top (looking down into the UPS) and the other from the side (looking along the length of the UPS). The x direction is across the width of the UPS, and the y direction is along the length. The z direction is vertically in the UPS.
Top projection: The top projection is rectangular, 86 mm wide in the x direction and 30 mm deep in the y direction. There are four holes at the ends, two at each end. Each pair is at x=4.5mm and x=81.5mm. The y dimensions of each pair is 6mm and 24mm. The diameters of all holes is 3.5mm.

Side Projection. The description of the side projection is the inner mould line (IML) which contacts the battery and the case where it is bolted down. The thickness is arranged upwards from this line. Starting a x=0, the IML projects 9.7mm in the x direction. It then goes 3.6 mm in the x direction while simultaneously 50mm in the z direction. It then proceeds 62mm in the x direction with no change in the z direction. It then goes 3.6mm in x, while dropping 50mm in z. It then goes 9.7mm in x with no change in z. The final part should be symmetric.

The areas around the hole have cylindrical shaped reinforcing projecting 1mm above and below the final part.

Generate an OpenSCAD model of this. Make all dimensions parametric."
Click to expand...

This is helpful. Thank you.
 
_Jakes_ said:
Openscad model using antigravity, first tried deepseek 4.1 flash but it struggled with making precise adjustments.
View attachment 1939292View attachment 1939293
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I have used ChatGPT to generate scripts for Fusion 360 with success (after persistence). Nothing as fancy as this, but the plus side is that I didn't need to use work mode, as no files were generated/downloaded.
 
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