Cherry picked Planet Reprap - A RepRap blog aggregator

August 22, 2017

Thingiverse - Newest Things

Cayde 6 Mask


This is a re-upload of the Cayde 6 Mask, it was modeled using 123D design and is from the videogame Destiny.

by DamaskProps at August 22, 2017 03:31 AM

Simple ring


This is a simple ring I modeled to hold in place my wedding band

You can scale it in your slicer to fit your finger

by iaga84 at August 22, 2017 03:30 AM

Thingiverse - Newest Derivatives

20700 bottom feed box no logo


this is a sqonker box remix i didn't like the logos on the original so he told me to model my own so i remixed his he did a great job the logo for me was just personal preference

by Lynnch21 at August 22, 2017 01:40 AM

Spacer for Fan duct 40mm CTC prusa i3


This is a small plastic spacer that goes between the mount points. This piece helps keep the hinge tight so that the fan assembly stays in place.

by jesse at August 22, 2017 01:14 AM

August 20, 2017

La Grotte Du Barbu

Trempe, recuit et ponçage de mon super couteau en acier XC75 – Ep195 – CouteauDeuze

Et oui, cette semaine, je continu mon projet de couteau fabriqué à partir d’un morceau d’acier XC75, avec cette fois l’étape critique de trempe et l’étape chiante mais indispensable du ponçage…

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Pour nous contacter
l’email – lagrottedubarbu@gmail.com
twitter – https://twitter.com/lagrottedubarbu
facebook – http://on.fb.me/1S38d3i
instragram – http://ift.tt/2tJeXxi
La wishlist Amazon – http://ift.tt/2sqyLSr

Abonnez vous à la chaîne et faites passer la barbitude autour de vous

Inspirez vous, faites des trucs et que la barbitude soit avec vous

Flattr this!

by babozor at August 20, 2017 07:58 PM

August 19, 2017

New reprap images on Photobucket

DIY 3D Printer and Reprap

Best 3d printer_zpsuoctq7hr.jpg
DIY 3D Printer and Reprap - Best 3d printer_zpsuoctq7hr.jpg

We are one stop destination for cheap 3D printer, 3D printer kit, Reprap printers and DIY 3D printer. Read latest reviews and buy DIY 3D printer and kits.

by star133 at August 19, 2017 04:12 PM

August 18, 2017

Buildlog.Net Blog

The Polar Coaster – A Drink Coaster Drawing Machine

I designed this machine to draw custom, round drink coasters. I already have a laser cutter for square coasters and I wanted to try something unique for round coaster.

The Base

The base of the machine has two stacked 5mm bearings in the center for the bed to rotate on. There are (3) 3mm bearings on the bed perimeter that provide support and keep it level. They have little shafts that snap into the base.

The Bed

The bed is  a 156 tooth GT2 pulley. It has little springy fingers that grip the coaster when it is on the bed. The bed connects to the motor pulley with a closed loop belt.

The Radial Arm.

This is a belt driven, cantilevered arm that uses 6mm shafts and linear bearings. The belt is a cut pieces with the ends clamped at the carriage. It has a slotted mounting hole that lets the arm rotate. The pen must be adjustable to get to the exact center of the coaster or the drawing will be distorted. There is a limit switch on the top.  This is the only axis that needs to be homed. To setup the machine you home it and jog the pen until it is exactly over the center of the bed. You then set the work zero for X (Gcode: “G10 L20 P0 X0”). This only needs to be done once. If you use different types of pens, the center should be rechecked.

The Z Axis

The Z axis uses a micro servo and a cam to control the height of the pen. The firmware is setup to only have (2) Z positions, pen up and pen down. It uses 3mm rods and tiny little 3mm linear bearings.  There is a compression spring on one of the rods that applies a little pressure to the pen, and allows the pen to float a little on uneven coasters.

The Controller

I used my Grbl HAT controller. It is a bit overkill for this project but works perfectly.  It is attached to a Raspberry Pi in this photo, but I have not been using the Pi in this project yet. I just connect directly via USB.

Kinematics and Pre-Processin

See this blog post on how it was done. The pre-processor is written in C#, but it is rather simple and you could probably read the source file and convert if you cannot deal with C# on Windows.

Firmware

I use a modified version of Grbl 1.1f.  Grbl does not support servos, so I needed to hack that in.  I used the PWM that is normally used for the spindle speed to control the servo. I turned off the variable speed spindle option and streamlined the spindle functions to the bare minimum I thought Grbl needed.  I adjusted the PWM parameters for use with a servo and added pen_up() and pen_down() functions. I tried to put as much of the custom code into one file spindle_control.c. I had to add a few lines in stepper.c to look at the current machine Z height and apply the correct pen up/down function.

CAM

You can use anything to generate the gcode that works with Grbl. The pen will go up when the Z is above zero and down when it is below zero. Therefore, you want the Z movement as short as possible to speed up the drawing and not have the pen dwell on the material and bleed.  I make the depth of cut 1mm and the z clearance 3mm.

CAD Files.

The design was done using PTC CREO 3.0.  A STEP version of the design is linked at the end of the post.

Performance

It does a great job. Here a recent coaster. This was done from a rasterized bitmap image found online (searched: circular Celtic braid).

Here is a Fat Tire beer themed coaster.

Coasters are made to be super absorbent, so larger tipped felt pens tend to bleed a little too much. I like to sketch with Micron pens and the thinner ones really work well on this machine.

Build You Own?

The build is not difficult, but covers a lot of areas. You should know how to work with STEP files and compile firmware.

The design is open source with no commercial restrictions, so feel free to use any part of my work. I found most of the parts on Amazon and eBay. I bought the belt from Stock Drive Products. The polar motor pulley is 36 tooth and the arm pulley is 20 tooth.  Cutting the shafts requires an abrasive cutoff wheel.

Please post any questions in the comments section and I will try to address them.

Links

 

 

 

 

 

by bdring at August 18, 2017 06:50 PM

Recent Uploads tagged reprap

Oh, Hello

RiFt97 posted a photo:

Oh, Hello

It's been 4 years, 1 month, and 6 days since I've uploaded to this photostream. A lot has happened since, and I'm sad to say many of the people whose content I followed and enjoyed have left Flickr. I was pretty sure that was going to be me as well, until last year I came into possession of this 3D printer, an Original Prusa i3. I've been doing a lot of projects since then, and the urge has resurfaced to seek a bit of attention and show off my creations to the world.
I'll probably leave my old minifig/PMG creations up, since they're fun to look back on. I doubt I'll do much, if anything with Lego from now on, unless something motivates me to. But I'm shifting the focus of this photostream to my 3D printing/electronic creations, with maybe some guitar stuff thrown in here or there.
Hopefully, as my schedule permits, I'll have some good content coming very shortly. I've already completed several projects that have been a blast, and have many more on the way.
Unfortunately, since I'm currently studying away from home, I don't have access to a nice camera to take really solid pictures of the creations. So for now, my cell phone camera will have to do. Perhaps in the future I'll replace the pictures with better ones, but I'd rather get the content out there now and worry about that later.
I hope you guys enjoy the new stuff! I'm looking forward to feedback and discussion of the projects, 3D printing, or pretty much anything. It's good to be back!

by RiFt97 at August 18, 2017 04:44 AM

August 17, 2017

La Grotte Du Barbu

BarbuNawak – Commentaires, monétisation et Facebook

Dans cet épisode “update” on discute commentaires, pognon, vidéos natives Facebook, et pleins d’autres trucs…

****************************************************

Pour nous contacter
l’email – lagrottedubarbu@gmail.com
twitter – https://twitter.com/lagrottedubarbu
facebook – http://on.fb.me/1S38d3i
instragram – http://ift.tt/2tJeXxi
La wishlist Amazon – http://ift.tt/2sqyLSr

Abonnez vous à la chaîne et faites passer la barbitude autour de vous

Inspirez vous, faites des trucs et que la barbitude soit avec vous

Flattr this!

by babozor at August 17, 2017 09:13 PM