Tag: edit-later

Power, lathes, wings

Reprap prototype PSU is done and ready for the stepper controllers to arrive now. All boxed up nicely. If memory serves, it didn’t have a fan when it was in the fax machine, so should be fine in the enclosure. At worse I might have to drill it some extra air holes.
Mains lamp, some (vintage) terminal posts, switch and IEC C14 socket.

Even took the engraver to the front panel to mark out the various terminals and added a couple of ferrite beads to the lines to be on the safe side, and used some cable wrap to keep the wires tidy.

Today I also finally removed the piston and cam off the old compressor pump, and filed down a pully to fit. I’ve hooked this up to the 3rd party headstock from the Black and Decker extruded aluminium wood lathe I found last year. It’s meant to be run by a type of drill they no longer make, so the compressor motor should be easily powerful enough. Currently getting a head speed of about 3200rpm, so it’s currently about twice as fast as it needs to be. Will see about swapping the headstock pully for something larger (I have one, but getting the old one off will be a pain).
It’s not urgent, but it’s sitting around and there’s a friend who should be able to use it once it’s basically working.
Also made a control box for it, currently a simple latching safety power switch (see background of first image) from a broken garden shredder and an old RS project box. If I find a spare suitably rated rheostat I may add a limited speed controller.

Also the sewing for the set of “Navi” wings was mostly done today, but one of the blue plastic rods snapped while trying to flex it into it’s “pocket”.
After some considerable swearing and therapeutic angle-grinder time (see above compressor pump), I will tomorrow attempt to construct a coupler out of clear perspex rod and use it to join the two broken ends, as the stress on them will likely be more than any other repair would take. this may mean purposefully breaking and repairing the opposite wing to match.

[20/06/2010: Amalgamating old posts from “Dreamwidth Creative Blog” into sci-fi-fox.com to re-purpose DW blog account.]

PSU Wiring

Some progress with inventory today, but got a bit sidelined into working on the old fax machine PSU, which puts out 5v and 24v, and should be powerful enough to run the stepper control circuits.

Boxing it up is fairly important, especially if there’s the chance of metal filings wandering around.

Using an old comms relay box of some sort and making a new front panel out of some aluminium plate from some Dell drive tray blanks.

[20/06/2010: Amalgamating old posts from “Dreamwidth Creative Blog” into sci-fi-fox.com to re-purpose DW blog account.]

Three things

Once again, things have been busy here! I’m currently processing orders, albeit with a small delay (manifold broke off the degassing chamber and I’m waiting for the glue to set).

There have been two major developments however.

UKFur
I’ve now purchased the UKFur merchandise shop from previous owner Tigerfire, who’s no longer as involved in the Furry scene as he once was.
In the next couple of days I should receive the first batch of new stock, to get a small number of the most in-demand shirts and sizes.

The three designs of shirt

It’s out of stock of the lanyards, but I’m looking around for a supplier that will provide them in minimum orders of less than £200.

However still have large numbers of vinyl stickers and silicone wristbands.

Confuzzled is just a month away now, so have no fear, you will be able to get your UKFur merch!

In the meantime though, wristbands are £1.50, stickers are 50p each.
B&W shirts are £10 in Small to XL sizes, and £11 in XXL and XXXL.
Blue shirts are £12 in Small to XL sizes, and £13 in XXL and XXXL.
£2 for postage, and I still take paypal.

If I’m out of stock, let me know the size you’re after so I can get more in and I’ll let you know when I do.

Chest sizes: S – 35/37″ M – 38/40″ L – 41/43″ XL – 44/46″ XXL – 47/49″ 3XL – 50/52″

Reprap
Shortly after buying the UKFur shop I also acquired a lot of 2000 surplus stepper motors.

All boxes full of motors (ignore the SEM bits)

I strongly believe the future is in 3D printers, but there’s a big supply issue. Even the home-made machines tend to require you to already have a 3D printer to make parts for it.
The way around this is to make a bootstrapping machine to make the initial parts. A rep-strap.

The motors I have are smaller than those advised in the Reprap project, but I have my own take on it. I’m developing a small, semi-portable 3D printer, that should be fairly cheap and easy to modify. I’m looking at a sale price in the £200 range, and a quantity of around 500 machines.
Because of the small size of these printers, I’m dubbing it the Bonsai Repstrap.

It’s an ambitious project I know! But if you want to follow how things are going with it, take a look at..

The Creative Blog
I’ve set up a journal over at Dreamwidth as a stand-alone creative blog. While this won’t be strictly business related, it will include and business creations and day-to-day activities as well as my personal works.
Dreamwidth incorporates RSS feeds into the blogs, so you don’t have to sign up to follow it. It also accepts OpenID logins, so you can comment if you like.

[20/06/2010: Amalgamating old posts from “Dreamwidth Creative Blog” into sci-fi-fox.com to re-purpose DW blog account.]

More macro shots

Another batch of pads is packed up and ready to go.

First took the opportunity to re-photograph them all in macro mode properly though. Here’s the winning shots so far, cropped and resized to 75%.

About to go upload them to my DA and FA accounts.

More will be cast tomorrow before I head out to Dorkbot London in the evening. Means next order will ship friday, most likely.
Will also be casting up 12 reprap-Mendel frame brackets for the Bonsai Repstrap prototype. And I’ll get photos of the new colour mix.

Still no word from resins supplier. Will be phoning them tomorrow to get this Shore-80 situation sorted out.

[20/06/2010: Amalgamating old posts from “Dreamwidth Creative Blog” into sci-fi-fox.com to re-purpose DW blog account.]

Cleaning, casting and picture-taking

Some photos of a wax seal and some notes on casting.

Straight to the workshop this morning, and finally managed to dig out the custom wax seal I made for Ash!
I had to modify it because last time I wasn’t happy with my own piss-poor engraving and due to the fact I didn’t reverse the text or images. So the stamped text came out backwards! D’oh!

It polished up pretty well with rotary tool and felt wheel though.

Also checked on the paw-pad castings. Was a bit worried since the part-A had settled out and I used a portion of the surface fluid by itself on the first run.
I’ve since scrawled “SHAKE BEFORE USE” on the side of the heated cabinet.
Regardless the elastomer seems to have set and cured pretty well. No areas of unmixed dye, and a glossy surface finish. I’m still going to give them another 24hrs before they go in the post though, just to be on the safe side. They should be fully hardened at 7 days, but they can be used an manipulated as-is.
Texture’s good too. Feels very natural.

Bit miffed that TOMPS haven’t gotten back to me yet regarding the order cockup, where they sent me Shore-60 instead of 80. I had intended to make up the “tire-tough” footpads with the new 4″ wide velcro embedded in them, and strap them to the bottoms of my shoes to test them at tomorrows LondonFur meet.
Really I should have checked the order contents when it arrives, but I assumed that they were correct because I’d been told the 80 was in a larger set than the 40, due to new suppliers. There were two sizes in there, so I assumed. I should have asked for the product numbers, rather than the descriptions.
It’ll get sorted eventually.

So, spent a little while here, setting up the ghetto Ikea light-box, and getting some much improved publicity shots of my works.
I really need some bigger, brighter lights though. Maybe my welding halogen..
Also depth-of-field is a bit messed up in some. Should be resolved with more light and using Macro shots, rather than regular with zoom.

Some unedited, resized shots below cut..
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