Recent Posts

Pages: [1] 2 3 ... 10
1
Project Progress / Re: K'nex 3D printer
« Last post by Callistemon on September 21, 2020, 05:44:03 am »
Do you have an approximate piece count? I was wanting to try some design concepts on this, but it is extremely advanced. Would it be possible to combine a 2D printer into the same unit?

The injection molded K'nex pieces would need to be heated to 360 degrees to melt it into a base plate. It would be much easier to place the base plate's mold under the extruder, but then the base plate would have the same melting point as the filament. Polypropylene also has a high melting point (can also be boiled), but would be more than 100 degrees less.

Yellow 5-way connectors sliding along each other would not be very smooth, as the tops of connectors are usually not flat. It would be smoother to slide along a long rod through a connector. For the design in image 5, if the yellow rod the wheels spin around can be anchored with a 1-way connector that allows free rotation and clips to a rod at the center of the yellow connector, that would reduce the resistance. The motor can be 12 or 24 volts, just depends on the power supply.
2
Site Feedback and Questions / Re: Bug: Cannot post in forum
« Last post by Callistemon on September 21, 2020, 04:52:24 am »
Same thing happened when I tried publishing a completed build. It had an error, even though the size of the images was below 65536 kilobytes, and it is stuck as unfinished (orange in the list), and cannot even be deleted. Another time when uploading images to a poll, there were no images afterwards, even though they were uploaded and were less than 64 megabytes.
3
Project Progress / Re: K'nex 3D printer
« Last post by Linkin_J_Knex on September 19, 2020, 11:49:25 am »
More
4
Site Feedback and Questions / Re: Bug: Cannot post in forum
« Last post by Linkin_J_Knex on September 19, 2020, 11:47:57 am »
May be that I'm uploading too many at once. Going to upload them a few at a time
5
Project Progress / Re: K'nex 3D printer
« Last post by Linkin_J_Knex on September 19, 2020, 11:47:17 am »
Here are some photos
6
Site Feedback and Questions / Re: Bug: Cannot post in forum
« Last post by Sorunome on September 19, 2020, 11:47:02 am »
How large are the photos? They might be too large
7
Project Progress / K'nex 3D printer
« Last post by Linkin_J_Knex on September 19, 2020, 11:46:10 am »
Upoading as per the request of Callistemon. Will not be continuing, however feel free to continue development!
8
Site Feedback and Questions / Bug: Cannot post in forum
« Last post by Linkin_J_Knex on September 19, 2020, 11:45:32 am »
Tried uploading photos of my K'nex 3D printer project however the "post" button returns me to a blank "start a new topic".
9
Project Progress / Re: Back with my FEL trash truck
« Last post by Callistemon on September 03, 2020, 05:48:27 am »
That's almost complete! Where the yellow gear turns the axle gear, it should also turn another gear on the opposite side of the input gear, and the two halves of that axle should be decoupled. That would incorporate a differential system.
10
Misc / Interior Trusswork
« Last post by Callistemon on September 02, 2020, 05:37:17 am »
Interior Trusswork
--> View Model



This is a new and different method of reinforcing cubic towers with trusses. Instead of the four sides being filled with trusses, the truss beams cross through the center, and the two perpendicular beams intersect in the very center to form a plus shape (when viewing from above). Unless you have a large supply of orange peg clips, this can only be assembled using blue 3D connectors in the center. If there were white rods running horizontally between the yellow connectors, equilateral triangles would be formed, but that requires many peg clips.

At the top of the truss section, the white rods should be angled outward in all directions, and an X can be added. This requires 6 peg clips if you are alternating in a checkerboard pattern between gray 3D connectors and red connectors along the vertical running corners of the tower. As long as all four connectors on the top and bottom edges are gray 3D connectors, the tower cannot lengthen and shorten from rods sliding through the red connectors.

With exterior truss, even if there are available blue rods between X units, adding a solid connector railing requires a blue rod to clip onto at every green unit, and connectors cannot clip onto a green rod beside a white connector. Interior trusses retain robust structural strength while allowing there to be blue rods on every single horizon. The trusses do connect to the edges by looping yellow connectors through the blue rods, but that does not interfere with adding railing unless there will be less than 1 connector-width (6mm) between the rails.

Instructions will be coming soon (hopefully).
Pages: [1] 2 3 ... 10