[chbot] Robotics Group meeting, Monday 15 June 2020, 6:30pm, 5 Idris Road

[Hartley, Robin (Nokia - NZ/Wellington)]

Hi Brindsley,

I also have an Ender-3 which I’m very happy with.
I did an auto-level conversion but in hind sight now that I have a greater understanding of what it does I’m thinking of removing it.
I got the optional glass bed which removes many of the issue people have with the bed being curved.

However I would recommend that if you have the plastic filament feed assembly look at getting a CNC aluminum  replacement assembly, only a few $ from Ali Express.
The tension arm has a habit of cracking and loosing tension but it’s not obvious. Happened to me on a 25 hour print and took several attempts before I found the problem.

Regards,
Robin

From: Chchrobotics <chchrobotics-bounces at lists.ourshack.com> On Behalf Of Brindsley Archer
Sent: Tuesday, June 16, 2020 8:41 AM
To: Christchurch Robotics <chchrobotics at lists.ourshack.com>
Subject: Re: [chbot] Robotics Group meeting, Monday 15 June 2020, 6:30pm, 5 Idris Road

To those who were interested in the Creality Ender 3 3D Printer, I decided to buy this on the advise of Geoff Irons' post of 23 March 2020:
"Because of NZ's poor exchange rate at the moment, for that price you can buy one locally - and a known/popular brand in the hobbyist sector: https://kiwi3d.co.nz/product/ender-3-pro/
The aliexpress one has a few more features (power off behaviour, autoleveling), but ender-3-pro is ranked as the best 3d printer in it's price bracket at the moment (https://all3dp.com/1/best-3d-printer-reviews-top-3d-printers-home-3-d-printer-3d/), is one of the suggested ones to most people on the 3d printing reddit: (https://www.reddit.com/r/3Dprinting/comments/fbpnri/purchase_advice_megathread_what_to_buy_who_to_buy/), and has a whole community with knowledge about it if you have issues (plus the local support). "

As a complete beginner, I found it easy to set up and get my first design printed using Tinker CAD and the supplied slicer program with default settings.

On Mon, Jun 15, 2020 at 10:10 PM Mark Atherton <markaren1 at xtra.co.nz<mailto:markaren1 at xtra.co.nz>> wrote:
Hello everyone,

Several new faces this evening; welcome.

Good turnout with 22 attendees, and lots of huddles-of tech-talk. $18 +
change (in gold, and flat-money) collected and transferred into the
robotics loose-change jar (for later banking).

Quick reminder: equipment donations are welcome for the trading table,
but no CRT based product, printers, toner or items that are likely to be
a disposal burden. All sales from the trading table should go into the
brown box on the wall, and are directly for the benefit of our host
club, NZART Branch 05.

With thanks on behalf of the group, it's good to be able to meet again
in person.

Mark Atherton

============

Graham Christie talked about his design and implementation for a novel
ventilator which he created during the April 2020 virus lockdown. This
was a long and interesting project, and much was learned.

Andy talked about some Ali-express failures, including a 5mW laser that
turned out to have in the order of 350mW optical output - not very
suitable for use in a public space as part of a beam sensing project !

Steven Graham brought a Misty II robot along to discuss. Quite a modern
unit, with lots of sensors and plenty of connectivity, all programmable
in java-script. One of our sneaky members hiding at the back of the
audience managed to hijack it by Bluetooth, and drive it around the room :)

William demonstrated his home-made modular 200mm seven-segment clock. He
also touched on the issues of getting the Chinese PCB manufacturer to
also assemble the boards.

Andrew talked about his 3D printed home automation projects, and
associated smarts.

Robin Gilks talked about Google Meetings, and related monitor sharing
issues. He also talked about his latest Blue Pill STM32 environmental
monitor project.

Brindsley Archer brought in his Creality Ender 3, 3D Printer. This seems
like an excellent entry level machine with stock held in NZ, and a
delivered price of around NZ$600.



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