Picked up a new lathe on Craigslist yesterday to which I will strap stepper motors and CNC-ize. It’s small enough that I can carry it around the house when neccesary (chuck pic below, tool holder pic here)
Went to the junkyard and Home Depot today - got all the big parts we need other than sensors and whatever display/microcontroller we’re going to end up using. Below is a test of the cooling and lubrication system - originally a power steering pump and a transmission cooler. The pump makes 10psi with very little […]
February 5th, 2010 in Aircraft Etc, News.
Last weekend we drove up to visit the ice runway at Alton Bay Seaport, B18. Lake Winnipesaukee is a seaplane base most of the year, but in the winter it freezes and the townspeople plow out a 3000′ runway on it. It was wicked cold, but saw some cute planes and helos. Landing on ice is […]
I’ve managed to summon some extra motivation and find time recently to do some things I’ve been meaning to do for a long time. For one, I got a new driver for the mill that will run the larger motors. I got it set up and everything works beautifully, I’m just waiting until I have parts that […]
February 18th, 2009 in News.
As you can see below, I spent a huge amount of time last year getting to know different virtualization setups. I got quite good at it in fact… and I came to realize that I could run a Virtual Private Machine service better and cheaper than what’s currently out there. I totally need more to […]
August 8th, 2008 in News.
Recently I’ve gotten back into my routing craze… since I can’t get IPv4 space anywhere, I got two 6over4 tunnels and a /48 from Hurricane Electric. My Cisco 7500 is linked up and serves up tunnels to all of my boxes, splitting up the (enormous) address space and doing intelligent routing with BGP in places […]
Today I did a lot of math regarding the lift of a non-airfoil wing. From the math and review of the videos, my best bet is that we aren’t properly maintaining the right angle of attack during takeoff. The leading edges aren’t near strong enough either, but that’s something I can’t fix (if anyone knows […]
February 28th, 2008 in News.
I got my pretty new radio a few days ago. My Motorola XTS 2500 is quite nice, I have to say. It’s the second to most epic handheld Motorola makes. In addition to the things my HT1250 does like MDC signalling and whatnot, the XTS series supports APCO Project 25. This standard, P25 for short, […]
January 25th, 2008 in News.
In an effort to promote radio and space to other WPI students and staff, Theo, KC2RMJ and I (KB1OZL) put together an event with WPI Wireless to talk to the International Space Station during a particularly good pass last November. I found the pictures of the event and thought they were nice.
I put together one […]
August 5th, 2007 in News.
Being an ECE student has it’s perks… The head of the department, Prof. Looft, sponsors a newbie gliding event every year with the gliding club he belongs to. There were about 25 random WPI kids out there, and we all flew. Very epic!
July 3rd, 2007 in News.
This August I moved into a school-owned apartment while I work for the Manufacturing Eng department designing and building prototypes for outside companies. It’s handy because I’ll be living there next year so I won’t move twice. I appear to have accrued a large amount of computing and routing equipment over the last year… Take […]
April 9th, 2007 in News.
Over the past few days I’ve been working on a z80 computer. It’s on breadboards, and includes 2M flash, 32k static ram, and 3 IO ports. It’s quite interesting, and is clearing up lots of my low-level computing knowledge. More on that in a few days.
Today I put much larger motors on the X and […]
April 3rd, 2007 in News.
Tonight I finally got around to putting on a new Z-axis motor. It’s about 5x the torque of the previous, plus 4 times as many steps per revolution (so 4 times as accurate). Since there is more torque, the rapid in the Z-axis is now 11 ipm, up from about 1.5 ipm with the previous […]
March 26th, 2007 in News.
I’ve been using the mill succesfully for a few weeks now making several PCBs. It’s really been great being able to design a board and have it in my hand within an hour. Unfortunatly, the Z-axis motor appears to have bit the dust. I came back from the other side of the shop to some […]
I’ve been working on my CNC mill over the past month. It’s based on a small manual mill made by Proxxon. I have 3 nice unipolar stepper motors, one on each axis. The motors are controlled by 3 L297s from ST Micro (these are REALLY amazing by the way…) to 12 TIP102 transistors used as […]
You are currently browsing the CREPinc.com weblog archives for the 'News' category.