Archive for the ‘Final show stuff’ category

From pen to paper to computer to metal

June 20, 2010

I thought I’d do this post just for fun. It’s kind of cool to see all the stages of getting a pattern from the first stage to the last – in other words it’s proof of why it took so long:

Creating the pattern:

Creating pat7 from scratch

Creating pat7 from scratch

Using the pattern to cut mirror card:

Pat7 cut into mirror card

Pat7 cut into mirror card

Using pattern to create digital version in Adobe Photoshop:

Screenshot of building up the pattern in Photoshop

Screenshot of building up the pattern in Photoshop

Importing paths into illustrator and exporting as correct files for CAD machines:

Exporting as DXF from Illustrator

Exporting as DXF from Illustrator

Black and green image of imported file from waterjet cutting company:

Single tile of pattern

Single tile of pattern

Full tiled pattern

Full tiled pattern

Final cutting:

Waterjet cut pattern in aluminium

Waterjet cut pattern in aluminium

I’ll add one last image to this when the final stage of sculpting has been completed.

More MDF cut

June 16, 2010

So I finally got the MDF cut with the laser machine at college. It looks really nice, and for some reason I really like the smell of the burnt edges. It’s been a few hours and it still smells quite strong.

I also really like all the offcuts – they looked so cool when I pulled the whole main sheet away, and the shapes formed the pattern as they were still in place. I didn’t think to take a picture of them at that point and now wish I had. It would take ages to arrange them in formation again. But if I did it would make for a very interesting art piece me thinks.

Laser cutting machine

Laser cutting machine

Machine has finished cutting

Machine has finished cutting

Managed to get a shot of some pieces still in place

Managed to get a shot of some pieces still in place

The final cut mdf

The final cut MDF (3mm)

Two downsides are that firstly at this scale I can notice some inaccuracies in the pattern. Some of the shapes are wider apart than others. It slightly bugs me knowing this although I doubt the average person would notice it unless they looked really hard or if it was pointed out to them. Secondly the MDF sheet was slightly smaller than we thought so the edge of the tile was cut off.

All in all it’s still pretty impressive. I want to use it for the front of my plinth, if I can, but I’ve realised I may need to re-design the way I’m planning to make the plinth.

Originally I was going to just have solid panels to make all four sides but if I use this cut out then it needs to be attached to a strong and stable frame which has legs going all the way up the sides allowing the inside to be hollow and the holes to help ventilation of the hardware concealed inside.

Things are quite mad for me at the moment. There are a lot of family commitments coming too. And I just don’t have enough hours in the day to commit to the project as I would like.

Oh well, better just get on with it and finish that essay!

OpenCV with external camera – check

June 9, 2010

I’ve managed to get the external camera working with Processing and OpenCV on my mac. I thought it would be more difficult as I tried it about a month or so ago and it didn’t work. Oh well, it works now so I don’t care. I hope it just carries on working right up to the end of the show.

This image shows that the ‘index’ needs to be changed to indicate which camera input to work with when there is more than one available:

Screenshot from Processing interface indicating parameters

Screenshot from Processing interface indicating parameters

So this is one thing ticked off my To Do list.

I’ve also now been booked onto a slot for using the laser machine next week. If all goes to plan I’ll have a nice panel to use for my plinth which should then match with my sculpture as the same pattern will be cut into it. That way there is some correlation between the two and will be easier to identify that they are part of the same installation.

I’m also slightly concerned about how heavy the sculpture will be. It is meant to be wall mounted but the brackets I am thinking of using may not hold it up. Not to mention screwing the front (pattern cut) panel to the back (blank) panel.

I’ve just been reading that if drilling, a fixed or lathe drill is best for metal. For aluminium a fast speed rate but slow feed rate is best. Which means that the drill bit should be spinning really fast but should be pushing down through the material relatively slowly (I think). Handy info on drilling can be found here: http://www.diyfaq.org.uk/powertools/drillfaq.htm

Ideally it would be good to do this at the 3D resource center but then I’d have to leave the parts there through the week and won’t be able to do anything in between the Wednesdays. Not really an option.

There’s a DIY type shop at the corner of my road. I think I’ll pop in there to ask them what kind of stuff they can do. They might even be able to cut all my plinth parts for me and then I can assemble those at home and hopefully (if my car is fixed in time) drive it to uni when needed.  When it comes to this stuff I haven’t really got much experience. I’ve only ever really put some flat-packed wardrobes up. They came out well and are still standing so it’s a good sign I say. Oh and theres the random wood works I did when in school – that was fun. But back then it didn’t matter so much if things didn’t line up all that straight.

I’m also going to have a rifle through some of last year’s show plinths at uni. There might be something that can be recycled.

I think I should sleep now, I have a feeling tomorrow is going to be another looong day.

DXF formats and floor plans

May 20, 2010

Boring title I know but it’s late and I can’t think of anything better. Anyway…

I feel a little restless when I’m at work where I suddenly remember something that needs to be done for the project or I think of an idea that could help solve a certain issue with the practical work but I’m unable to do anything till I get home in the evening, by which time I’m usually too knackered or think of something else that also needs to be done. It is the first time since starting the course that I’ve really felt the disadvantage to being part-time.

Progress with materials: I was originally going to get some aluminium laser cut but that was going to be quite expensive. Then a very kind professional sculptor (Sahand Hesamiyan) advised me on the possibilities of having it water-jet cut instead. So far this appears a better and possibly cheaper option and without the potential to leave burnt edges where the shapes have been cut out.

I’ve prepared the pattern file in Illustrator, converted it to DXF (which is a CAD file) and have sent it off to find out how long the machine will take to cut the pattern which is where the cost starts to mount up. As it’s quite intricate compared to the kind of things they usually cut (like mechanical parts) the cost will probably be quite high (relatively speaking). But I’m hoping that even then it comes in at a reasonable price, compared to the laser cutting option. Will give an update once I find out.

———–

The full-timers on the course have speedily got into the organisers mode and got the cogs turning in terms of getting the show sorted. Not one to sit back and do nothing, I’ve contributed some time in measuring our exhibition spaces and drawing up the floor plans. These were sent to the group, and are especially important to the on-liners who are unable to come down (some being abroad) and who will need to have an idea of what the physical space will look like.

Floor plan for room which will be well lit and generally light

Floor plan of dark space (will be kept in darkness with only selective lighted areas)

It really makes me think about all that is involved for solo as well as group shows and this process makes you think about things from a different perspective. I’m totally more in tune with the importance of exhibition spaces being suitable and in a way I now have more refined ideas of what would be perfect and what isn’t but would do anyway. And also how to make the most of what you have. Now, what I’m actually hinting at is the fact that the space our group has been allotted in the MA show isn’t really as big as it should be (simply because we’re having to accommodate the space rather than accommodate our work. But compare this to how much space the other larger groups have to share and, well, we’re not as bad off.

Plus, if I get the sculpture looking good for this then I may have a better chance of getting this and bigger work shown at a local gallery.