Cherry picked Planet Reprap - A RepRap blog aggregator

April 24, 2014

Thingiverse - Newest Things

M18 Milwaukee Battery Connector, Device Side / Battery Cover Remix


This is a remix of the M18 Milwaukee Battery Connector. I remixed this as part of a shop organization project. I wanted a bit more multi-tasker on this.

The battery connector can be used as a cover for when I throw batteries in my tool bag.

I wanted mount capable to make a wall hanging setup which has my batteries sorted and "gives them a home".

I have an older style Li-ion Milwaukee drill as well that was damaged via a drop and I'd like to fix it and update to be the same.

Changes:

I improved the slide action by increasing some tolerances.

I reduced the overall amount of plastic whilst still maintaining strength.

I added several "nubbs" to grab hold for tool bag retrieval. I also added several recessed holes for screws. You can use 6-32 panhead for a sloppy fit, 8-32 for a tight fit, or a wood screw with a flat head (like a deck screw) for screwing it into wood.

The base is a little thin for a pistol mount on a drill, so I may thicken that later for robustness.

by picodisaster at April 24, 2014 05:45 PM

High Tec Boxing Jump Rope


Hey guys,

this is my super high tec - low cost - jump rope!

Make one for you and you friend and get in shape for the beach, now!

;)

by JeanClaude at April 24, 2014 05:36 PM

MakerBot

Thingiverse | NYC Thingiverse Show and Tell Meetup

042214_ThingiverseMeetup
Calling all Thingiverse community members living in and around New York City! We’re hosting a Thingiverse meetup at the NYC MakerBot Retail Store.

We’ll start the evening with five of our favorite local Thingiverse users sharing their recent 3D printing projects. Then, community members can have time to meet each other, learn about what the rest of the group is up to, and have a great time.

If you’re a designer with a printer, bring the coolest thing you’ve made. If you’re not a designer, but have a printer, bring the coolest thing you’ve printed from Thingiverse lately. If you’re neither of those things, just bring yourself! We’ll provide the refreshments.

What: A New York City Thingiverse Meetup
Where: 298 Mulberry Street, New York, NY 10012
When: 7:30-9:30 p.m. EST, April 29th, 2014

RSVP here.

by Kate Hannum at April 24, 2014 04:12 PM

Thingiverse - Newest Derivatives

Laser Cut Dice - Many configurations and customizations available


I uploaded some dice last summer and was playing around with them.
Made it so you can out cut or engrave the numbers.

Instead of making a traditional "one", you can customize it with names, logos or anything imaginable. They'll make great gifts.

by TexasLaser at April 24, 2014 02:53 PM

8020 Limit Switch Mount for TEMCo CN0098


This mount is designed to allow the limit switch to sit either in an up or down position.

Uses 2 M4 Screws to secure limit switch to the mount.

Printed with 50% fill, Raft and Supports.

by bentreegecko at April 24, 2014 02:14 PM

April 23, 2014

BOLTS Development Blog

Beaming happily

It has been very quiet on this blog in the last weeks, but BOLTS is not dead and should see more activity again. There is a stable release coming up very soon, but more about that in another post. This post is about the amazing work of Bernd from the FreeCAD Forum, who added a huge number of steel beam profiles to BOLTS.

FreeCAD has had a Architecture workbench for quite some time, and has actually a pretty active group of architects that constantly improve its already impressive architectural capabilities.

The Arch workbench has a part type specifically for structural elements like beams, and also provides a few common profiles. The approach BOLTS takes for managing parts is also very well suited for the different kinds of profiles, so Bernd started to add a ton of them to BOLTS. And there are really a lot of different profiles. Most of them can be added both as a Arch structure or as a ordinary part.

Some of the steel profiles

During this effort we uncovered a fair amount of problems with BOLTS, like issues with names and standards and the BOLTS GUI in FreeCAD, that will have to be addressed. But that was somehow expected at this still quite early stage of develoment.

If you want to testdrive this, you can grab the latest development snapshot from the webpage. This will turn into a stable release unless problems are uncovered, so every bit of testing is appreciated.

April 23, 2014 05:25 PM

Tales of a modern life

Makibox: E3D hotend installed

    The modification

    I gave up waiting for the experimental Makibox hotend upgrade.
    So as planned, I finally got my new E3d hotend.
    Last weekend, during Easterhegg someone 3d printed me a mount for it.
    I pretty much followed these instructions.
    Except that I made a different modification to the Z endstop, that can be seen below.
    I wanted my endstop to be adjustable. (See the photo below)

    Endstops

     If you have the PrintRboard (first generation Makibox machines), you need to swap some cables after the firmware update:

    From the top down the end-stops are:
    * e-stop (move Y endstop cable here on the PrintRboard)
    * z endstop
    * y endstop (remove this cable)
    * x endstop

    Results


    The E3D version 5 bowden 1.75mm hotend works great!
    The Airtripper versioon 3 BSP extruder works great!
    The hotend mounting has about 2mm of play in Y.
    I'll replace it with a modified version that uses LM4UU linear ball bearings as soon as the bearings get here.
    The final line is: I CAN 3D PRINT AGAIN!!!!! :)



      by Marcus Wolschon (noreply@blogger.com) at April 23, 2014 04:27 PM

      Public RSS-Feed of Whosa whatsis. Created with the PIXELMECHANICS 'GPlusRSS-Webtool' at http://gplusrss.com

      Found this teardown of the MBI extruders via +Fabbaloo. I wasn't surprised by much based on what I had...

      Found this teardown of the MBI extruders via +Fabbaloo. I wasn't surprised by much based on what I had already seen/read/reasoned-out, but there were a couple of interesting things. First, a minor surprise was that the encoder wheel is optical rather than magnetic as I had assumed.

      Second, the nozzle actually moves up and down during retraction/recovery. This is an idea that I have been working on for a while. The idea is to get the benefits of Z lift without moving the Z axis by pulling the nozzle back slightly in its mounting. There are several types of actuators that could be used for this, but they're not necessary if you can get the nozzle pressure to push/pull the mechanism the way you want it. The normal back-pressure of the nozzle will push the nozzle down toward the platform when you are extruding, so you really just need counteract the weight of the nozzle to lift it (normal retraction will produce a negative pressure, but it may not be enough, and the weight will slowly pull it back down as the nozzle pressure equalizes after the retraction.

      The obvious solution to this is to use a spring, but a spring's force increases as it compresses so the spring will want to reach an equilibrium with the nozzle pressure that may not result in the spring being fully-compressed when the nozzle is under pressure, and the spring's force (at least if it's a weak enough one to ensure that the nozzle pressure will completely overcome it even at low speeds) is likely to drop off completely when the nozzle is fully raised. You want it to hold strongly in the raised position and only pull weakly (just enough to lift with no nozzle pressure). You need a bistable mechanism that will hold strongly in the down position when the nozzle is under pressure, and hold strongly in the up position when it is not, but will transition easily between the two with the rapid movement of retraction/recovery.

      The solution turns out to be a magnet, which pulls strongly when the assembly moves up and gets close to it, but the magnetic force drops off quickly as the metal moves away so that only a little nozzle pressure must be maintained to keep the assembly separated from the magnet. Apparently, $403 million in stock from Stratasys is enough for MBI to hire someone capable of figuring this out, rather than just staying two years behind everything the Reprap community has been doing.

      April 23, 2014 05:08 AM

      April 22, 2014

      Recent Uploads tagged reprap

      03 Simplify3D Duplicate models

      Creative Tools posted a photo:

      03 Simplify3D Duplicate models

      Superfast slicing and 3D print software which is compatible with most popular 3D printers.

      simplify3d.creativetools.se

      by Creative Tools at April 22, 2014 03:33 PM

      04 Simplify3D Model info

      Creative Tools posted a photo:

      04 Simplify3D Model info

      Superfast slicing and 3D print software which is compatible with most popular 3D printers.

      simplify3d.creativetools.se

      by Creative Tools at April 22, 2014 03:33 PM