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Mary Daly
owner

Contest  - 
 
Enter to WIN AN OPENBUILDS T-SHIRT!
http://bit.ly/2jKFJh9
#contest
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Matt Miller's profile photoMary Daly's profile photo
2 comments
 
+Matt Miller Currently, t-shirts are available via giveaway only so be sure to enter!
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Mary Daly
owner

Discussion  - 
 
49,000 members on OpenBuilds.com!

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Mark Carew (OpenBuilds)
owner

Show and Tell  - 
 
OpenBuilds Member Larry_AK is rocking his OX Build with some great projects! Be sure to check out his media album with the lithophanes and frames he as be working on. #OpenBuilds   #cnc   #lithophane   #OX  
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Mary Daly
owner

Discussion  - 
 
VOTE: Black or Silver? Which camp are you in? Use the link below to VOTE!
http://bit.ly/2j08t4E #vslot
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PAULE VALENTINE's profile photoaeknarin tomcup's profile photo
7 comments
 
I like black 
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Mat Helm

Discussion  - 
 
Cool idea...
 
Hehe getting fancy with LED. Turns out the openbuild 2020 extrusion has a nook that is good not only for hiding gt2 belt but also LED strip :)
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Mary Daly's profile photo
 
+Step Cia​ where did you get those fans?
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James Lytle

Discussion  - 
 
Has anyone built a 1500mm by 1500mm CNC machine with 8mm lead screws? Just wondering, as that is the size I am drawing my plans up for. If I need to go larger lead screw, then I can, but wondering if using thrust bearings at the end of each screw to put tension on would be sufficient to mitigate whip.
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James Lytle's profile photoFranz Ebersbach's profile photo
17 comments
 
Look at this as an alternative belt drive, no belt stretching, its called bell everman belt drive.
https://lh3.googleusercontent.com/CgA5nANVh0orXfuQm4O6OffYbMlXk4zdd5cNtXSOAeNsHrUWCTD272lq9dEJzSktYw35G_7h4g
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Mary Daly
owner

Software  - 
 
Turn pics from your phone into .dxf with this handy app
http://bit.ly/2juI8iO
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Mark Leino

Show and Tell  - 
 
 
+Brandon Satterfield​ how does this look for a heavy duty R7 y-axis?

1500mm c beam
1500mm 1605 ball screw
400 something oz/in stepper from www.automationtechnologies.com

These plates were the first things I cut using planetcnc controller/software and I have to say it is absolutely amazing. The electronics setup is a little more expensive, but WOW it is everything you could want for cnc. Blows the open-source stuff out of the water.

I plan on doing a review of it here or on openbuilds once I get some more time in it. I was pretty skeptical about trying it since there is not many using it, and I ordered it directly from planet cnc- the other side of the world. 
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Mark Leino's profile photo
10 comments
 
And having instant feed rate override is amazing!
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Mary Daly
owner

Builds  - 
 
When it's too cold to go outside, you just gotta Build something! #WinterBuilds

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Mary Daly's profile photoKeith Davis's profile photo
9 comments
 
Violet is not just a ninja - she also carries a bag of cat food and feeds working cats at dairies she delivers mail to. She carried her baggy of food for my cats too through those drifts.
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Kim Stroman

Electronics  - 
 
I'm looking at downgrading from my DeWalt to a small air cooled DC spindle. I'm converting a particular machine to just cut wood and HDPE, and as I have this in my home office (no garage), the less noise the better. I'm trying to work out what I need other than a PSU. Can anyone tell me if this speed controller will work?

Spindle: https://www.amazon.com/gp/product/B015HK2L90
Speed control: https://www.amazon.com/gp/product/B01MDV1HIL/
And here is the PSU I already have on hand: https://www.amazon.com/gp/product/B00D7CWSCG/

Thanks!
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Jerry Fountain's profile photoTimothy Boss's profile photo
43 comments
 
+Jerry Fountain OL from both DC+/- to spindle. And yes the sleeve, as I call it, over the case of the spindle is nonmetallic. Probably an uncertafied safety feature item to go along with the controller.
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John A. Tamplin

Discussion  - 
 
I'm looking at building a CNC/3DP once my garage is expanded to have room, and I'm strongly considering OpenBuild parts for the core structure. For CNC, I will mostly be milling 6061 aluminum and HPDE/UHMW (occasionally I might do steel, but I'm ok with taking it really slow in that case). I will do CNC first, but design it such that I can swap out parts to do 3DP as well later.

There are trade-offs all around - for CNC I don't need much height (and don't want it to avoid extra leverage against the gantry) but need a variety of movement speeds, slow for metals and fast for plastics to keep from melting them and need to handle a fair amount of torque. For 3DP, I want it higher to have a larger build volume (~1' cube), but torque requirements are just for moving the machinery.

So, I was thinking of having C-Beams for the long rails, supported frequently to avoid deflection, and having the gantry mounted as close as possible to those supported by large plates just on the outside (due to the supports) with wheels both inside and outside the C-Beam. When I need extra height for 3DP, I can change out the supports or put them on something to raise them (and will have more range in the Z-axis to take advantage of the height).

From the C-Beam deflection worksheet, using a C-Beam for the gantry supported only at the ends and supporting 30lb (Z-axis components plus 2.2kW spindle) should have a maximum deflection of about 80 μm, which should be fine for my needs. Along the sideways axis of the gantry, deflection could be an issue when cutting heavier materials, but since those will be cut with a much slower feed rate I don't think it will be an issue - if it is, I could add another beam behind the gantry beam (though it does restrict Z-axis mounting options).

I'm a bit worried about using the T screws for the side rails, since the efficiency is pretty low and the gantry will be heavy and needing more torque for cutting metals. What experiences have people had with them or with larger diameter ballscrews (and is there clearance between the inside wheels for a 12mm ballscrew)?

I was thinking of an Azteeg X5 GT controller (up to 3A @ 50V per stepper motor), and NEMA23 steppers with holding torque of 400 oz-in @ 2.83A all running off 48V.

Thanks for reading, and I'd appreciate any advice or experience others have with similar approaches.
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Eric Lien's profile photoJulius Jahn's profile photo
31 comments
 
So buy the parts yourself and make your own BOM.
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Mary Daly
owner

Discussion  - 
 
WOW! Thanks to you, the OpenBuilds community, for making 2016 a huge success for builders around the planet.
#HappyNewYear #HereWeCome2017

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About this community

Welcome to the OpenBuilds machine and project sharing repository group! We are an open source group dedicated to bringing awesome builds and parts to the community. We believe that by helping one another, this community will better the world for us all. Its exciting to see open source design sharing and growing with such enthusiasm. Be sure to join in with the OpenBuilds.com community to share your builds and to be inspired by some of the best designers and builds in the community! Follow along with tons of great builds being posted @. OpenBuilds.com Please note: For Part Store questions/ comments please email the Part Store Team contact@openbuildspartstore.com Thank You OpenBuilds Team

Mary Daly
owner

Discussion  - 
 
Hmmm....maybe you need to build a laser engraver and sell things like this!
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Mary Daly
owner

Discussion  - 
 
Alex figured out how to beat the system. Lol
 
Playing around with different lists from Amazon to lump together items needed to complete projects when opensouce choices aren't available to offer a B.O.M. as a single URL and one of my favorite things is you can get +OpenBuilds​ parts from Amazon :) makes a great way to spend those Amazon Gift Cards that are burning a hole in your wallet 
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Jose A. S's profile photo
 
+Openbuilds Must provide FREE Shipping after certain amount spent on his webpage
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Here are just a few carved on my Openbuilds Area 51 CNC Parts F-117 CNC..

Gerald

You can check out my build here:

http://www.openbuilds.com/builds/area-51-cnc-parts-f-117-cnc-gear-rack-drive-system.1428/
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Alex Krause's profile photoGerald Prusinski's profile photo
11 comments
 
+Alex Krause Anytime !!

Gerald
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Mary Daly
owner

Discussion  - 
 
I know there are some awesome project makers out there. Post your favorite project!
 
Care to take a challenge? Please post your favorite project you completed this year... This can be a machine built with Openbuilds parts or something you created on a machine using open builds, let's think of this as a OpenBuilds Year in review. I will start off the challenge with a hashtag #OpenBuilds2016 and add that this was done on +Mark Carew​'s infamous Ox CNC 
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Mary Daly's profile photo
3 comments
 
NEW ALBUM: The Musk-Ox and things made by the OX!
openbuilds.com - Musk-OX | OpenBuilds

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Sorry for the lack of updates it's about 90% complete
 
Did a little work on the screen press today it's almost ready to print... Still need to figure out the spring retention 
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Anthony Bolgar's profile photoMark Carew (OpenBuilds)'s profile photo
4 comments
 
NICE!!!
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Mary Daly
owner

Show and Tell  - 
 
Check out the projects SBLabs is making on his CBeam XLarge Machine
http://bit.ly/2ijpWVs

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PAULE VALENTINE's profile photoSonny Lowe's profile photo
2 comments
 
That is sweet!!! 
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Mary Daly
owner

Builds  - 
 
XXLarge #CBeam Machine. Modified to move X Axis with fixed bed - plus a Cat ;>
http://bit.ly/2i72lXR
#opensourcehardware #cncmachine #makersmovement
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Todd Morrill's profile photoAlex Krause's profile photo
2 comments
 
Ohhhh... the new Cat-Beam machine :) 
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Mark Carew (OpenBuilds)
owner

Discussion  - 
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Keith Davis's profile photoRoberto Fernandez's profile photo
4 comments
 
Happy and constructive New Year.!
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