HP41 keyboard overlay model for 3d printer

[Astro3D]

Hello

I have designed a keyboard overlay model for a HP41 calculator:

https://www.thingiverse.com/thing:3215428

[burkhard]

(11-14-2018 10:51 AM)Astro3D Wrote:  Hello

I have designed a keyboard overlay model for a HP41 calculator:

https://www.thingiverse.com/thing:3215428

Neat! Have you made any yet? How does the thickness compare to the original?

[rprosperi]

With a couple very minor tweaks to the layout, you can make it reversible, so both sides can be used.

Required mods:

1. Remove the vertical bar between the 2 rightmost holes in the 4th row down.

2. Slightly enlarge the horizontal width on the right edge of the leftmost 3 columns of the bottom 4 rows. Though not apparent with casual use, it is easily seen (just turn one over to check fit) that the number keys are not spaced uniformly due to the larger size of the digit keys.

[Astro3D]

(11-14-2018 03:17 PM)burkhard Wrote:  Neat! Have you made any yet? How does the thickness compare to the original?

Yes, I made it: You have a couple of pictures in thingsverse: https://www.thingiverse.com/thing:3215428 and I enclosed one picture here.

(11-14-2018 03:17 PM)burkhard Wrote:  Neat! Have you made any yet? How does the thickness compare to the original?

The thickness is something bigger than the original but the fit in the calculator is great !!!

[Harald]

Nice! But how do you label it?

[Astro3D]

(11-15-2018 10:22 AM)Harald Wrote:  Nice! But how do you label it?

I use adhesive labels. I think you could also use a permanent marker