Last Night We started the build of another one of these box-modded MendelMax printers. With extra hands we got the whole frame, the feet, all the motors, and a large number of brackets mounted and aligned in just a few hours. Even Morfin was surprised how quickly it all came together.

This design has already led to the design of the first printable upgrade: Compact Y-Rod holders. As you can see, this part was derived from MendelMax 1.0, 1.5, and some awesome rod clamps by Jonas Kuehling.

Now the build volume actually surpasses a MendelMax, sitting at 265x247x220 mm. And see how flat those 0.4mm printed layers are? That’s because this aluminum bot is super rigid, giving fast and accurate prints. Sweet!

If you can come up with a good name for this bot, I’d definitely appreciate it. Post in the comments if you feel inspired.

 

Monday РMMMM  Microcontroller Madness

Tuesday – DIY Music Night

Wednesday – Open House

Thursday – Game Night Featuring Tetris Arm Wrestling Tournament

Friday – PTW Gala demonstration (offsite)

Events at Hive76 Monday through Thursday start at 7pm and 

ARE OPEN TO THE PUBLIC.

Friday Gala Ticketing information available here.

 

We got Matt Wettergreen’s MendelMax up and printing in two days. Thanks to all those at Hive76 who helped out with the build, especially Chris, PJ, Brendan, and Rob! Here’s a timelapse from the first day:

Below is a video of the finished bot printing with the latest Marlin firmware (smooth acceleration and fast travel times)! It turns out PLA sticks to a heated aluminum bed provided in the MendelMax kit. Wow. Completely Awesome. I couldn’t believe how little of the heat from the aluminum bed actually radiates away (you can only barely feel the heat an inch off the bed at 75 degrees celsius). That’s a huge feature.

Congrats to the Mike Payson and the MendelMax Team on their inspired Mendel remix. It’s a fantastic RepRap 3D Printer.

 

We the People


High Resolution 2D Pen Plotting with a RepRap. Happy Leap Year.

 

This Saturday we’ll have Matthew Wettergreen here from Rice University to learn together how to build a MendelMax 3D RepRap printer.

MendelMax is the new rapid-to-assemble Mendel variant based on an extruded aluminum frame. Very rigid, very nice looking. Stop on by to check it out!

11 am – 8 pm
Saturday March 3rd @ Hive76

 

My Blade mCP X Mods

She ain't pretty, but she flies great

I’m a noob when it comes to RC helicopters. I got a Syma S107 for about $30 a year or two ago and it is incredibly stable while being ridiculously bulletproof. I can fly it into walls, and I’ve never replaced a part. If it’s laying on its side on the floor, I can often get it to right itself by just gunning the throttle. (Do I recommend it? No. Do I do it? Sometimes.) A wire fatigued off the board once but that was the only thing I’ve had to fix. It’s a hell of a bargain and it’s treated me great, but being so stable and easy to fly, it has some inherent performance limitations. So I decided to step up a few levels.

I heard about the Blade mCP X helicopter, the first “real” helicopter of its size that came stock with 3-axis attitude-holding stabilization electronics. It weighs maybe double what my S107 does but its performance is amazing. It can do inverted flight, flips, all sorts of crazy stuff. That is, when supplied with an appropriately-skilled pilot, which I certainly am not. But I can fly it in my backyard in 30 mph winds, and this little beast can take it — pretty impressive for something that weighs the same as a good quality 9V battery. Being such a noob, I crash constantly, but I can usually patch things up without needing to buy replacement parts. Here is the list of mods I’ve performed on my helo so far, mostly out of necessity:

  • Grommet mod – tightens up the swash, reduces vibration (not my idea). Works great
  • Tail boom from mCP X2 – comes with a more aggressive tail rotor which helps with yaw authority
  • Created a simple tool to speed up resetting the main gear after crashes – just remove the battery and push this drilled-out rod over the gear hub to click it back in place, no need to remove the canopy or landing gear. I keep it zip-tied to my transmitter since I crash a lot :)
  • Lengthened tail boom – added perhaps 1/2″, seems to help with yaw authority
  • Added magnetic breakaway tail boom mount – after a crash the tail boom pops off instead of breaking, can be reset by simply moving it back in place and letting the magnets lock it down. Works very well, but be careful because if you have too much slack then with the right kind of crash the tail motor wires can get wrapped around the head. I’m sure I’ll keep experimenting with this one
  • Masking tape holding my canopy together? Classy
  • Hot glue holding my landing gear together? Not perfect by any means, but it keeps me flying until I buy a spare

Aluminum piece presses into the helo frame like a stock tail boom, but has an embedded magnet. Tail boom is hot-glued to a piece of bamboo skewer that fits into the channel, and has a magnet glued to it using CA and baking soda. Rubberbands or o-rings might be better

 

The GPSd Project

Eric S. Raymond has recently asked for some help from Philadelphia’s DIY and engineering community with an exciting project. Amongst many other interesting projects, ESR is the lead developer on GPSd, a “service daemon that monitors one or more GPSes…”. He needs help building a cheap GPS repeater to forward the RF data from his roof antenna to his test rack in his office. For any student or hobbiest electrical engineers looking to make a name for themselves, this could be an excellent opportunity.

 
Option 1) Lasercut, Laser engrave, and LED-light-up your very own Snowflake

Option 1) Lasercut, Laser engrave, and LED-light-up your very own Snowflake

Join us on TUESDAY, December 20th, 7 pm – Midnight

Meet-and-Make, Hive76 and NextFab Studio Members
@ http://NextFabStudio.com/ @ 3711 Market Street

This “Maker Collider” event will be a great opportunity to make awesome stuff.

We had proposed these projects:
All details are here on the Wiki

After reviewing the projects here and those proposed by NextFab members it sounds like we will be doing some form of the Chess boards, the snowflakes, some robotics, and a bunch of laser-engraving. But what if you don’t like those? Come by anyway and you can rally troops for helping you on your own project(s).

NextFab Studio will have these staff members on hand throughout the event:
Chrinstine : Textile and Industrial Design ( fabric knowledge, product design,cad, sewing )
Ian : Electronics (pcb design/fabrication, coding, wiring, soldering, etc.)
Seth : Mechanical Engineer (handtools, cad, product design)
Brandon : Multi-Media Designer ( 3d printing, graphic design, product design, cinematography, cad)

Anything you want to do, you can do. AWESOME.

Check out all their equipment.

Oh, and there will be food too. Be there at 7 pm!!

To Join in on the Discussion, please join our mailing list

 

Tech101: Make an ethernet cable

I didn’t know how to use an RJ45 crimper at all, so after bugging my fellow members, I just grabbed the crimper and started destroying a patch cable. A few mistakes and pairs of plugs later, I had my own working ethernet cable. ethernet cable

That makes me confident enough to teach you!

Saturday, 12/17 @10am

Come join us for a bit of cable making and Hive76 infrastructure upgrading.

  • $10 gets you some cable to take home and and a few pairs of RJ45 plugs.
  • For $18 more, we’ll pick you up a crimper for you as well.

Click below to get some tickets or just RSVP for free and say you’re coming.

 

We are excited to announce a very hacking winter-time Hive76 open-house hosted by NextFabStudio:

Hive76 Open House
December 20th, 7pm – Midnight
@ http://NextFabStudio.com/ @ 3711 Market Street

This Hack-tacular event will be at NextFabStudio and will get us free access for the night to some of their most awesome tools, such as: CNC plasma, CNC embroidery, e-textiles, electronics, 3D printers, shop bots… Check out all their equipment.

There will be food too.

So Awesome.

Now we need to brainstorm project ideas, let’s start things off in this email thread. Please reply-all so the proper NextFab people (cc’ed above) can tell us if this is possible and, if so, the logistics for how to make it happen.

All details are here on the Wiki

I’m proposing the first project (we can have many of them!!)…

A double-set of Hive76 chess pieces and boards. This will make use of their lasercutters, embroidery equipment, and possibly the electronics and 3D printers too. I really want a double-set (4 different colors) so we can play Bughouse Chess (You will love this game)

If we get really creative maybe some magnetics and electronics could be enabled as well.

Let’s get hacking!

To Join in on the Discussion, please join our mailing list