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OpenBuilds MiniMill CNC - Build and Review
#16
(11-Sep-2017, 12:15 PM)sloscotty Wrote: It also taught me a bit about the CAM tool I am starting with, which is a Sketchup plugin called "SketchUCam".  It was written by the guys at OpenBuilds.

I was wondering if there was a sketchup plugin for this kind of work, I thought that CAD being the only option was a kind of 'pricing' the uninitiated 'out of the market.' A bit like a printer that will print images from photoshop but not from paint!
Windless fields and smokeless builds
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#17
way cool, I have a CNC mill that I built from a mini mill, lots of fun.

I can highly recommend using Fusion 360 for the modelling and CAM (and the student copy is free)

there are a number of pre-configured mill profiles that can easily be edit to meet and special needs
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#18
I've begun learning Fusion 360.  I had to use something different than SketchUp, because after the trial expired, I could no longer import DXF files (and I'm not gonna pay $700 just to use SketchUCam!).  The CAM part of F360 is very easy to use.

I used it to prepare a part for cutting from aluminum.  After pulling my hair out for a few days, I was finally successful.  I was having the problem of the mill just stopping partway through a cut.  I finally tracked it down to excessive EMI from the router (which was not grounded).  After grounding the router and rerouting the wires to reduce interference, I was able to cut the plate shown in the photos below (a part to modify my 3D printer).



I'm very happy.  Now, I'm about to expand the cut capacity of the MiniMill.  The current cut area is 4.6" x 5.75".  I'm taking it to 10" x 24".  The parts arrived yesterday, so stay tuned....Big Grin
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#19
The initial conversion of the MiniMill into the MMXL is complete.


The build (with more photos) is documented over at OpenBuilds: https://openbuilds.com/builds/mmxl-a-min...sion.5813/

In this configuration, the build area is 10.25" x 16". Next is to mill a custom plate to extend the build area to it's final length (24"). Big Grin
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#20
Been awhile since I posted an update on this....

The expanded MiniMill is working great.  It has gotten a lot of use over the holidays.

I decided to add a laser engraver/cutter to it, so I cut an aluminum mounting plate to affix it to the regular spindle mount.  This is cut from 1/8" 6061 aluminum.

    

I used the laser to engrave a grid on my spoil board to help with lining up items to be milled or engraved.


I also used the laser to make several Christmas gifts.  Here is a example test piece of a raster engraving on Maple.


After Christmas, I decided to complete the laser adapter with an acrylic laser shield.  This is 3/16" acrylic intended to shield laser light up to 500nm (with a shielding OD of >4+).  I had hoped to cut this with my 2.3W laser, but not enough oomph, so I put the router back in and cut it with that.  It came out great!

    

Here is a short video of the engraver with shielding in action.  (Turn down the volume.)  Near the end, I point the camera through the slots so you can see the difference.  (I was laser engraving denim at only 25% power.)  Before the shielding box, I was using cheap green laser glasses....


Here is the result of that denim test after washing.


I will get back to my quads.  I fully intend to cut (mill) some parts out of aluminum, carbon fiber, and acrylic for some of my quad designs.  I am very confident that this machine can handle everything that I want to do.  Now that the holidays are over, and my mill is working great (and I've figured out how to use it better),  I hope to have some stuff to post soon in other sections of the forum... Wink
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#21
That's a really flexible tool you've made there, nice work!
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#22
I want one'a them! The perfect thing to blur the line between tool and toy!
Windless fields and smokeless builds
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#23
(07-Jan-2018, 06:39 PM)Tom BD Bad Wrote: I want one'a them! The perfect thing to blur the line between tool and toy!

I'd really like to see you define that line Tom.

Wink
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#24
Will you be laser engraving FAA number plates for the community? Something I had thought about doing that but I'd have to do it at work and am unsure of the legalities of it.
That is definitely one of the best tools/toys one could have!
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#25
(08-Jan-2018, 01:06 AM)unseen Wrote: I'd really like to see you define that line Tom.

Wink

Tool -



Toy - 

Windless fields and smokeless builds
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#26
(08-Jan-2018, 01:48 AM)JukeJoint Wrote: Will you be laser engraving FAA number plates for the community? Something I had thought about doing that but I'd have to do it at work and am unsure of the legalities of it.
That is definitely one of the best tools/toys one could have!

Probably not - but that's a great idea! Could probably be a real money-maker. OpenBuilds actually has a very inexpensive, purpose-built laser engraver/cutter kit: http://openbuildspartstore.com/openbuilds-acro-system/

(08-Jan-2018, 01:06 AM)unseen Wrote: I'd really like to see you define that line Tom.

For me, most of my tools are toys (until I have to use one to immediately fix something that broke). Oh, and my lawn mower and plumbing tools are never toys...
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#27
Hi @sloscotty are u UK based???

Regards
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#28
(10-Jan-2018, 10:54 AM)Darozas Wrote: Hi @sloscotty  are u UK based???

Regards

Click on his name to view his profile.
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#29
(10-Jan-2018, 10:54 AM)Darozas Wrote: Hi @sloscotty  are u UK based???

Regards

Nope, in the USA.  If you are interested in OpenBuilds parts though, Ooznest is a very reputable distributer in the UK: http://ooznest.co.uk/Openbuilds

Their WorkBee CNC machine is very popular.
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#30
No im not intrested in Open build at all sorry.

All I trying to do is found some one to machine me couple parts for my new gimbal im working on.

Don't want so spend fortune on thing.

And don't want to build CNC either. I get no use of It all.

Got 3d printer laser thing but not using much att all. 3d printer is used only if I brake part on my quad or my kids want to waste some filament lol.

Thanks anyway !!!

Regards
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