#garfield Logs

Jan 17 2015

02:34 katsmeow-afk cept fordesk lamps
02:35 katsmeow-afk i had some 2ft ones
02:37 katsmeow-afk maybe they wre 18 inch
02:37 katsmeow-afk i might still have them even
03:47 rue_house T12
03:47 rue_house 12/8 of an inch
03:47 rue_house (thats what you said)
11:48 katsmeow-afk ok
15:20 rue_house printer is working agian
16:08 tsmeow-afk ponders programming an fpga with all the answers a 6502/z80 will ever come up with, so it never needs to calculate anything again, leading to the question: is it still a calcula
16:18 katsmeow-afk if it is, http://www.ebay.com/itm/251792614683
16:33 katsmeow-afk woah, a 512k ram chip that pulls 1.3 watts all by itself
16:35 tsmeow-afk ponders a "smart socket" that takes two regular mobo ram, and becomes a
16:39 tsmeow-afk ponders using those 256k drams as the core of a 10Mhz cpu, because that would be 1200 free cpus, if the cost of the pcb is ignored .... 12Ghz total cl
16:47 katsmeow-afk 250 rams at 10ns = 25Ghz
16:49 tsmeow-afk ponders the longest path (number of steps) a single risc instruction (that's not done with a lookup table) can possibly
16:49 katsmeow-afk the longest path that would take more than 10 nanoseconds
16:50 tsmeow-afk plugs the problem into rue's brain to see what comes
16:50 katsmeow-afk afk
17:30 katsmeow-afk i think it needs a 2megabyte ram, for two 8bit operands and 32 math-logic-bit operators
17:33 katsmeow-afk that's 16 pcs of 128k x 16 sram , and the sad part is only one is being used at any one time, how do you use more than one? glue on more i/o busses and call it a 16 core cpu?
18:35 tsmeow-afk ponders making the evaporator and condensors fit side by side over a double basin stainless steel sink, which costs ~$5 and might last forever , but is not all that terribly l
18:39 katsmeow-afk ok, bad idea, sloshing can mix the contents of the basins if they are connected
18:40 tsmeow-afk makes note to self to look for two separate deeeeeeeeeeeeeeeeeeeeeeep commercial s
18:42 tsmeow-afk lays the steps of an instruction out in hardware on a long skinny pcb, then rolls it up end to end in a
20:07 tsmeow-afk ponders 2 high speed high pressure flows of magnetorheological fluid thru a coil of wire each, then driving a hydraulic cylinder, which is hooked to a 4ft dia speaker cone, and driving the coils with a
20:15 rue_shop3 ok
20:15 rue_shop3 whats going on
20:15 katsmeow-afk i don't have enough supercharged budies to carry out all my ideas
20:16 katsmeow-afk bodies
20:16 rue_shop3 hmm
20:17 rue_shop3 a cpu with the state machines all made out of ram chips?
20:17 katsmeow-afk or, how to optomise 128,000 / 17,000 for highest speed, lowest chip count, smallest pcb
20:17 rue_shop3 and the alu?
20:17 katsmeow-afk yeas
20:18 rue_shop3 almost an fpga
20:18 katsmeow-afk one big dual port ram, and 4 registers total
20:18 rue_shop3 the 3d printer is working again, I'm worried I may never sleep again
20:18 katsmeow-afk and 2 counters
20:18 rue_shop3 hmm
20:18 rue_shop3 can the counters be state machines?
20:18 katsmeow-afk altho Cypress dual port rams have the addy counters and registers built in
20:20 tsmeow-afk ponders the addresses being made by a ram
20:21 katsmeow-afk i think the ram chip count, for cheap rams, will be excessive
20:21 rue_shop3 will you make me a drawing of it?
20:21 rue_shop3 I could use some good art to stare at
20:23 katsmeow-afk thinking a binary divider is one register, one shift register, anotehr register, a pile of eor gates
20:24 katsmeow-afk i dunno, i should be drilling holes in pipe, to make it leaky
20:24 katsmeow-afk i wonder if dinner ever finished cooking
20:26 katsmeow-afk i am having troubles with the idea of the numbers needing to be loaded into the math unit before they can be calculated,, why can't i calculate the answer before i get the numbers?
20:27 katsmeow-afk it's outrageous the waiting done to subtract 0.000000000001 from 1,000,000,000,000,000,000,000
20:28 katsmeow-afk even on a 32bit pentium, that takes a stupid amount of random memory accesses, and waiting
20:28 tsmeow-afk goes to check di
20:29 rue_shop3 time calc 1000000000000000000000-0.000000000001
20:29 rue_shop3 1000000000000000000000-0.000000000001 -->> 1e+21
20:29 rue_shop3 real 0m0.002s
20:29 rue_shop3 user 0m0.000s
20:29 rue_shop3 sys 0m0.000s
20:32 rue_shop3 calc "10000000000000000(ResultBase=16)"
20:32 rue_shop3 10000000000000000(ResultBase=16) -->> 0x6FC10000
20:32 rue_shop3 huh
21:13 katsmeow-afk so a Ghz pentium 32bit, it takes .002 sec? that's only 500 operations per sec
21:44 tsmeow-afk hasto wait on the duct tape to
21:47 rue_house gotta hate that
21:48 tsmeow-afk brought all the junk downstairs, in the last 2 hrs it's dropped
21:54 katsmeow-afk i don't understand the scrapping of aircraft carriers built in thelast 50 yrs, the usa is paying the scrap yard 1 cent to take it off their hands, why not pay them 2 cents to merely gut the hull for upgrades circa 2016?
21:54 katsmeow-afk or 3 cents
21:54 katsmeow-afk or a whole dime?
21:55 katsmeow-afk remove all the machinery, everything, down to the floor and bare walls and ceilings
21:56 katsmeow-afk the USS Ranger is due to be scrapped
21:58 katsmeow-afk surely the hull itself, and the floors and walls are intact as they have ever been
22:01 tsmeow-afk points out that 3 ww2 torpedoes will sink a carrier, and prolly only one modern torpedo, so it's bad economics to spend a fortune making a new hull while you have paid 1 cent to scrap another
22:03 tsmeow-afk boggles at http://www.ebay.com/itm/Yaskawa-Minertia-P09E-DN21-Electric-Disc-Armature-DC-Servo-Motor-P-Series-14-/151553006207
22:13 katsmeow-afk how much is current for the pwm signal for servos?
22:14 katsmeow-afk 2 milliamps? 100ma? 1/5 ma ?
22:14 katsmeow-afk 17/376 ma?
22:18 katsmeow-afk http://forum.arduino.cc/index.php?topic=50645.0 <<== ouch
22:19 katsmeow-afk <idiot> The supply I'm using is rated at 5.5V 750mA that I regulate to 5V using an LM7805 (rated at 1.5A), so I do not think over-current conditions is the issue here.
22:31 katsmeow-afk http://dr-iguana.com/prj_LightPipe/index.html
22:51 katsmeow-afk ok, even 1/2 inch of pressure is too much with a 1/16 hole
23:16 katsmeow-afk equalising the flow may be a rediculous problem
23:17 katsmeow-afk i wanna minimize how much water is moved, and the pressure, to save power
23:21 katsmeow-afk a meteorleft!
23:33 katsmeow-afk well, cuss words
23:34 katsmeow-afk the only things that *works* is to dunk the fabric in the water and lift it out
23:35 katsmeow-afk trying to run the water thru a slit the fabric goes thru doesn't work eitehr,, water tension i guess, the water doesn't slit, it forms a series of streams down the fabric
23:40 katsmeow-afk rue: http://www.ebay.com/itm/Electric-Solenoid-Valve-Magnetic-N-C-DC-24V-New-Water-Air-Inlet-Flow-Switch-1-2/251775467278 <<== $2.19 free s&h
23:47 katsmeow-afk i even washed the fabric in detergent to see if i could wash off any hydrophobic stuff if on it
23:54 katsmeow-afk rue, Tom, i need an url for lamp cord bushings
23:54 katsmeow-afk 18 awg
23:54 katsmeow-afk paid, zip cord
23:54 katsmeow-afk err, pair
23:56 katsmeow-afk the stuff they are calling lamp bushings on ebay could hold a feaking sj cord