Misc parts & components for donation/sale

[Byron Collier]

Hi all

I've recently come to realise that I really don't do any electronics work at all any more and the stuff I have here is just gathering dust. I started putting together a home lab/workshop of sorts earlier this year, but these days I rarely use any of this kit.

I wanted to see whether you'd be interested in taking any of this off my hands? I'm sure the hackspace can make far better use of it than I can.

Most of the components I've accumulated over the years I'll happily donate to the hackspace for free, but there are a couple of larger things which I'd like to get some money back on - if you guys are interested, that is (whether for your own personal use or for the hackspace).

Free stuff:

• Raspberry Pi Compute Module with carrier/IO board & camera adaptor board (no power supply though, sorry) - the IO board should be compatible with the Compute Module 3, if/when it's ever released
  
• Fotek SSR-25 DA solid state relay - a reflow toaster oven that never happened...
  
• 3.5" Composite LCD, modified to work from 5V - one of those "reversing camera" LCDs you see all over fleaBay/Amazon
  
• Through hole tactile switches: ~20x regular switches, 3x 5-way "joystick"-style switches - a Raspberry Pi handheld that never happened...
  
• RGB illuminated rotary encoder
  
• Nokia 5110 LCD - I'll never remember why I bought this...
  
• E sky EK2-0422 4-channel RC receiver - has a 27.045MHz FM module installed, but I don't have a matching TX module/unit
  
• 0.1" pitch header pins
  
• Misc through hole resistors, 60 different values, unknown quantity
  
• Misc through hole electrolytic caps, unknown values, unknown quantity
  
• Through hole ceramic caps, 14 different values - unopened pack of 224 caps
  
• 1x 8xAA battery holder
  
• 2x 2xAAA battery holders
  
• 32x IR LED array - pretty sure it needs a 12V supply
  
• Hitachi HD44780 LCD - I think it's 20x2 characters
  
• Arduino Duemilanove - Early model, but it's an ATMega328P so it should still work just fine
  
• 4x HC-SR04 ultrasonic sensors
  
• 3x Sharp GP2Y0D810Z0F IR sensor modules (mounted on Pololu carrier boards)
  
• 3x 8-DIP TI OPA2132PA OpAmps - made a few headphone amps using these.
  
• 5x TI TPA2008D2 3W Stereo Class-D amp ICs
  
• 5x TI TPA6030A4 3W Stereo Class-AB power amp ICs
  

I've uploaded some pics here: https://i.imgur.com/osybYac.jpg https://i.imgur.com/9b8Qxo4.jpg https://i.imgur.com/3aMNzQo.jpg.

The next two are not so free, I'm afraid.

I have a Tenma 72-10480 30V/3A digital bench power supply which I've powered up a grand total of 3 times in 7 months; apparently according to this article it's a rebranded Korad KA3003D. These go for around £55-£70 new (incl. VAT), but I'd be happy to let it go for £25. Pic here: https://i.imgur.com/wbovyds.jpg

And finally, I think it's time to part with my 3D printer... Officially it's a HICTOP 3DP-11 - basically it's a Prusa i3 design with an aluminium frame instead of acrylic. It uses a heated aluminium build plate which does unfortunately have a few marks/imperfections, but if you're using tape as a bed liner you won't notice this. The controller board is labelled as "MKS Base v1.4", which appears to be a clone of the RAMPS board - they're compatible with RAMPS and I've loaded Marlin 1.1.0 RC5 on mine. It uses lead screws instead of threaded rods for the Z-axis and I printed some brackets for the Z-axis guide rods to help stabilise things (originally the guide rods mounted into a ~2mm metal plate, so they were prone to coming loose). I spent a long... long time calibrating this thing and getting it working *just* right, but I really don't use this as much as I thought I would. My calibrations are saved in EEPROM but could easily be input into the Marlin config files and flashed directly into the firmware.

This printer works really well for a cheap kit printer, but from what I can gather it's not too dissimilar from many other self-built low-cost 3D printers: it can be a bit fussy and it needs babysitting in case anything goes wrong. The only major issue I noticed is that the print bed is ever so slightly warped. It's less than 0.5mm out, so it's going to be really easy to fix: the bed is aluminium, it'll bend back into shape really easily - worst case scenario, a new heated bed won't cost all that much. But if you're trying to precisely level the bed then it is noticeable - if you fully level the bed in all four corners and then move either the X or Y carriages you will see the nozzle make contact with the bed.

I've no idea how to price this. I originally paid just shy of £300 for the kit, so how does £220 sound? People are more than welcome to pop round to see it working before hand - transporting it may cause some parts to need adjustment, so if you're going to buy it from me I'd rather you see it in its current working state. Unfortunately I lost the original assembly instructions during a hard drive crash; if you ever need to disassemble anything then make sure you take measurements.

Photos:

Printer: https://i.imgur.com/CPxMMwb.jpg

First ever test prints (original firmware): https://i.imgur.com/HXz04qC.jpg

Companion Cube (original firmware): https://i.imgur.com/1Kz2yEm.jpg

Netrunner tokens (original firmware): https://i.imgur.com/VeFFEFG.jpg

More Netrunner tokens (original firmware): https://i.imgur.com/4k3prFp.jpg

Custom Z-axis guide rod braces: https://i.imgur.com/43zhba3.jpg

"3DBenchy" Test piece (current firmware): https://i.imgur.com/ODDdM3P.jpg

Yarn bowl (current firmware): https://i.imgur.com/5t0T9N6.jpg

[Bob]

Hi  all

I am not a member of the hackspace but I am on there mail list , and I have restarted doing some electronics with 3 juniors and 1 others and we have entered Pi wars next year,  we would love to have the electronic bits and the power supply we would like to give you £40 for the lot and give £10 to the hackspace. I allready have 3D prints (2 not working work in hand). Thank you in advance if we are lucky.

Bob Love

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[Bob]

Hi Byron

That's fine good luck with what you are doing, I know what it's like it's taken me number of years to get back into doing some building, even though I am now retired I have less time than when I was working. But I am doing things I like doing.

Bob Love

On 18 Nov 2016, at 14:16, Byron Collier <byronl...@gmail.com> wrote:

Afternoon Bob (and others)

I decided to do one final project before getting rid of all my kit, and I am having something of a change of heart. I think I need a bit of time to make sure I don't make any rash decisions which I'd regret!

Sorry if I've messed anyone about.

I mentioned to Pete in a separate email that I'll still pop down on Tuesday evening; it's been a long long time since I visited the first space.

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Regards,

Byron Collier

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[Byron Collier]

Afternoon Bob (and others)

I decided to do one final project before getting rid of all my kit, and I am having something of a change of heart. I think I need a bit of time to make sure I don't make any rash decisions which I'd regret!

Sorry if I've messed anyone about.

I mentioned to Pete in a separate email that I'll still pop down on Tuesday evening; it's been a long long time since I visited the first space.

On 18 November 2016 at 08:43, Bob <3dbits...@gmail.com> wrote:

To unsubscribe from this group and stop receiving emails from it, send an email to hackspacecardiff+unsubscribe@googlegroups.com.

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[Peter Tangney]

Sorry - that last email got stuck in the spam filter for some reason.

Peter