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#251 2021-04-14 17:37:42

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,348

Re: 3D Printers

The local 3D printer meeting is in progress (virtual meeting on Gather.town)

One of the attendees just got this printer...

https://www.kickstarter.com/projects/3d … dprintmill

Pledge HK$ 325 or more
Just The Belt - Creality 3DPrintMill
Only $41?
By popular request from all the skilled hardware hackers in the community- just the print belt Creality has chosen to use on the 3DPrintMill. We'd love to see what you make with it.

This printer prints onto a moving belt so it can be used to print long objects such as a sword.

The link above shows several versions of the printer.  The presenter showed successful prints and an interesting failure, where the print head grabbed the object and dragged it a bit to the side, so the object was skewed to one side.  That kind of failure happens with regular X-Y-Z printers as well.

The text copied above appears to be from a side bar about a replacement belt for the printer.

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#252 2021-06-13 10:45:07

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,348

Re: 3D Printers

Here's another report of 3D Printing for housing ...

https://www.yahoo.com/news/habitat-huma … 00308.html

Source: Habitat for Humanity Central Arizona
Read the original article on Business Insider

The project is using German equipment and American workers.

The Yahoo version of the story includes a number of photograpns.

My initial impression is there are at least some walls that are printed with air space between them, which should be helpful for temperature control in Arizona, as well as for building strength. 

A nice additional touch would be foam insulation between the walls, but that expense might not be necessary in Arizona.

***
For Mars, I would see this construction technique as useful inside larger pressurized spaces, such as inside volcano tubes if there are any.

It would seem (to me at least) inappropriate for habitats on the surface directly exposed to the environment.

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#253 2021-06-13 20:34:02

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 23,122

Re: 3D Printers

Finally  for humanity article of which we have talked about its use on mars and on the moon but the issue for either is not only the material . I see that its no longer solid walled but more like a common construction with a gap to allow for pipes and electrical to go into....

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#254 2021-07-04 06:44:28

Mars_B4_Moon
Member
Registered: 2006-03-23
Posts: 885

Re: 3D Printers

First Fully Reusable Rocket That Can Be Entirely 3D-Printed In 60 Days
https://twitter.com/TheMarsSociety/stat … 3582586887

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#255 2021-09-08 18:31:42

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,348

Re: 3D Printers

This post is coming to the forum from a Virtual/Hybrid 3D Printer meeting.  The local group has returned to the regular meeting space, fully masked up, while the virtual attendees connect from their respective homes.

This particular group has never had a formal agenda .... it thrives on challenges presented by attendees, and exchange of news between attendees.  The view I am watching is of a 3D printer brought back to life from a near-death (ie, junk heap) experience.  There was some abrasion on a wire bundle, and the previous owner did not have the background or patience to attempt repair.

The meeting leader has both, but it ** still ** took many months for the printer to return to full operation, which I am privileged to witness thanks to the services of gather.town.  Gather.town is a service like Zoom, but designed for very large corporate meetings.  We are operating at the lowest possible level, so the service is free.

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#256 2021-09-10 11:10:08

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,348

Re: 3D Printers

This post is intended as an update on 3D Printing advances, and not necessarily an endorsement of the vendor ... however, I am a shop holder, so receive these updates...

Shapeways Offers Stainless Steel 17-4 PH for Metal 3D Printing

Metal 3D printing continues to trend upward at Shapeways, bolstered by continued expansion in advanced metal powders and technology. Stainless Steel 17-4 PH (natural finish) is a new offering, allowing Shapeways customers to continue innovating and designing like never before—but with the ability to create strong metal geometries that are also even more lightweight.

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#257 2021-09-15 16:09:13

Mars_B4_Moon
Member
Registered: 2006-03-23
Posts: 885

Re: 3D Printers

Oldest City in the Netherlands Boasts the World's Longest 3D Printed Concrete Bike Bridge
https://www.autoevolution.com/news/olde … 69117.html

World's Longest 3D Printed Concrete Bridge Unveiled in Nijmegen
https://3dprintingindustry.com/news/wor … en-195951/

Dentists and Teeth
https://www.news.com.au/best-of/money/3 … 4b717151fd

Another Bridge in China, 3D-printed polymer bridge has been unveiled in Yima River Park, Longquanyi District, Chengdu, Southwest China's Sichuan
https://www.globaltimes.cn/page/202109/1233465.shtml

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#258 2021-09-23 07:17:39

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,348

Re: 3D Printers

https://www.yahoo.com/news/ready-3d-pri … 00788.html


Are you ready for a 3D-printed house? They’re cheaper, stronger and long-lasting, developers say
David Lyons, South Florida Sun Sentinel
Wed, September 22, 2021 11:07 AM
TALLAHASSEE, Fla. — The three-bedroom, two-bath home has a corduroy-patterned exterior, rounded corners — and a cement pour that oozed from an industrial-sized toothpaste tube. And most intriguing of all, it comes from a 3D printer.

When the house is finished around November, Kyndra and James Light, a husband-wife development team, will be asking between $175,000 and $225,000 for the 1,440-square-foot dwelling.

The printed homes are said to be quicker to make, stronger, and resistant to such Florida hazards as mold, hurricanes and flooding. And most crucial of all: They seem poised to offer affordable housing in a state where many have forgotten there can be such a thing.

“While the technology is novel ... it’s still a little bit off for them to be commonly used throughout the tri-county region for hurricane reasons and the ability to build larger structures,” Poliakoff said.

But Kyndra Light said 3D homes can arrive on a mass scale faster if builders, developers, regulators and others act in concert to make them happen.

“If we can all lock arms and walk down the Yellow Brick Road, so to speak, that is what it will take,” she said.

If designed for Mars, these structures would need to hold pressure, so will likely be cylindrical, as shown in previous posts in this topic.

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