[OpenTRV-dev] intro

[Adrian Godwin]

The hackspace-owned ones have been mostly kit-built, and suffered from
inadequate care and over-enthusiastic fixing. It's quite a big hackspace
and not very easy to enforce good practice. The most reliable,
mechanically, was an old Stratasys but the extruder died and a replacement
(based on reprap components) seems to be taking a while to get completed.

We've recently got a lulzbot that hasn't broken yet, but I wouldn't want to
rely on that indefinitely!

Agreed about temperature measurement at the ceiling. Unfortunately it's
also the best place for a movement sensor.


On Mon, Sep 30, 2013 at 10:42 AM, Bo Herrmannsen
<EMAIL ADDRESS HIDDEN>wrote:

>   Hi
>
> are the 3d printers homebrew? i was thinking that and bad build... or that
> people does not take enough care of them?
>
> anyways i got access to 3 3d printers... on top of that a pick&place...
> reflow oven as soon boards to control my toaster oven is here... last bit
> yet to order in a bit is a solder paste dispenser
>
> tried stencils but the setup time is prop more than it would be doing it
> manual... also the paste got smeared out under the stencil
>
>
>
> i know damon is playing with a sensor to detect occupancy.... but i would
> not place the stuff at the ceiling.... all the hot air goes up there and it
> would be the wrong place to messure temp... a microwave sensor and then
> messure at more normal hight... say arround chest hight a bit away from
> radiators so you dont get false readings
>
> /bo
>
>
>
>  *From:* Adrian Godwin <EMAIL ADDRESS HIDDEN>
> *Sent:* Friday, September 27, 2013 12:27 PM
> *To:* EMAIL ADDRESS HIDDEN
> *Subject:* [OpenTRV-dev] intro
>
>     Hi,
>
> I've just sent a join request to the list admin after seeing Damon's pitch
> at the Connecting Homes event. I've been looking through some of the list
> archives and have probably missed a few things, but am wondering if I can
> help out with some parts.
>
> I'm a member of London hackspace and have access to the tools there. Items
> that may be useful are an envronmental chamber, a laser cutter, a 3d
> printer and a reflow oven.
>
> It's fairly common for the 3d printer to be broken, but there's also a
> group based near reading who have well-developed printers, the thames
> valley reprap group. These might be a useful resource for getting small
> quantities of prints made. Given how much effort seems to be involved in
> keeping 3d printers working, this might be more efficient than buying the
> Maplin machine.
>
> I've personally got some SMD equipment - small irons, hot tweezers, hot
> air, microscope. I don't have reflow or paste equipment yet, though. There
> are a couple of people at the hackspace who have done more with stencils
> and dispensers.
>
>
> I was at the Connecting Homes even in connection with an energy-managed
> house project. This also requires good occupancy sensors and we're looking
> at a crude thermal imaging camera. We think there might be a case for
> making a ceiling-mounted occupancy sensor with light and temperature
> sensors and I'm wondering if this could share some development with your
> plans.
>
> -adrian
>
>
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