Search found 9 matches

by manisteinn
12 Jul 2019, 23:24
Forum: Workshop
Topic: Low profile Beamspring project
Replies: 22
Views: 1537

Re: Low profile Beamspring project

Can I ask what kind of program are you using? I have some switches to design too. As photekq pointed out I'm using FreeCAD, an open source cross-platform parametric solid modeler. It's similar to commercial alternatives but there are definitely limitations and annoyances as vvp pointed out. It is r...
by manisteinn
10 Jul 2019, 23:58
Forum: Workshop
Topic: Low profile Beamspring project
Replies: 22
Views: 1537

Re: Low profile Beamspring project

A long overdue update... Repo update: - Toolpath examples - Housing lid added to assembly Capplate mold I've done two test casts using my existing mold: First: 2ml resin and 4g iron powder. There was an air pocket in a corner, I cut a separate injection channel in the opposite corner for the next at...
by manisteinn
20 Jun 2019, 22:54
Forum: Workshop
Topic: Low profile Beamspring project
Replies: 22
Views: 1537

Re: Low profile Beamspring project

Repo update: - Updated moldtest spreadsheet to display actual volumes ( screenshot ), multiple recomputes (F5) required after changes (dependency issue). - Hook sheet slightly modified and fully constrained, exported dxf and gerber (3360 total holes) Casting supplies are on the way, I should have so...
by manisteinn
13 Jun 2019, 00:20
Forum: Workshop
Topic: Low profile Beamspring project
Replies: 22
Views: 1537

Re: Low profile Beamspring project

A very delayed update: I milled the plate as planned with a minor adjustment; I separated the diagonal "spring catcher bar" cavity part, attaching from the rear with an M2 screw (orange part in pictures). It allows me to experiment with dampened versions without affecting the plate, filing the tiny ...
by manisteinn
30 May 2019, 23:54
Forum: Workshop
Topic: Low profile Beamspring project
Replies: 22
Views: 1537

Re: Low profile Beamspring project

Forgot to mention I added a rough drawing in hook_sheet last commit, made in TechDraw workbench (included with FreeCAD). Decided to try it out after watching this series (excellent channel!), I've previously used Drawing Dimensioning but both have limitations. Still haven't completed the sheet, I'll...
by manisteinn
29 May 2019, 07:18
Forum: Workshop
Topic: Low profile Beamspring project
Replies: 22
Views: 1537

Re: Low profile Beamspring project

Oh man, tell me this will be mass produced. I love the beamspring switches so much that after two days of using a model F 122 I had to go back to my 3101. Do you think your design will have important differences in feel? I would definitely build my endgame keyboard with them if not. I can relate to...
by manisteinn
29 May 2019, 00:13
Forum: Workshop
Topic: Low profile Beamspring project
Replies: 22
Views: 1537

Re: Low profile Beamspring project

Did you cast resin? I am looking to get into that as my clear PLA 3d printed ones are not the best quality and obviously scratchy. I will be printing some in ABS this week and using acetone to smooth them out. I have never cast anything in resin and yours look super good. I would be interested in k...
by manisteinn
28 May 2019, 07:19
Forum: Workshop
Topic: Low profile Beamspring project
Replies: 22
Views: 1537

Re: Low profile Beamspring project

The mount for the Selectric keycaps seems potentially fragile if it's going to be make of plastic. MX mount example you made seems super solid, though. Absolutely, I'll save those for casting. I fully expected the MX one to break during the abuse, I was surprised. Whoa! This is really cool and a ne...
by manisteinn
28 May 2019, 00:23
Forum: Workshop
Topic: Low profile Beamspring project
Replies: 22
Views: 1537

Low profile Beamspring project

https://i.imgur.com/jdvPIj5.png After getting a 3278 last year I wanted a more portable version, while it does fit in my backpack it's not ideal for travelling. :) My goals - 1:1 reproduction of the mechanism (excluding the large coil spring) - No reliance on existing parts - Low profile (different...

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