#2974518 - 03/11/10 02:23 PM
Re: . New Simpit build
[Re: PropNut]
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Joined: Jan 2004
Posts: 1,221
f15sim
More projects than sense!
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More projects than sense!
Member
Joined: Jan 2004
Posts: 1,221
Graham, WA
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Welcome to the Fraternity of Evil Geniuses. If you're going to cut aluminum, I was pointed to a pair of Onsrud 2 flue up-shear bits: 40-107 .25" and 40-101 .125". They're roughly $5 each. The ShopBot forum is down at the moment or I would let you know what the recommended feed & RPM is for cutting aluminum. (As soon as I get the info I'll update this message) The bits can be purchased from Ballew Tools - http://ballewsawandtool.com/If you want to get further into tips & such on exploiting your new Awesome Toy Creator, email me privately - no need to clog the forum with it. (Unless people want to see it?) g.
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#2974544 - 03/11/10 03:19 PM
Re: . New Simpit build
[Re: PropNut]
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Joined: Jan 2004
Posts: 1,221
f15sim
More projects than sense!
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More projects than sense!
Member
Joined: Jan 2004
Posts: 1,221
Graham, WA
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Using those bits I specified, use .8 IPS (inches per second) for x & y moves, and .5 IPS for z (plunge) moves. RPM should be 18,000. You'll get hot chips so it would be a good idea to set up an air cooler on the bit. I built a cooler that is fed directly from my air compressor. It uses a ball inflation needle as the output. The little side hole in the tip should be covered up as well. If you hit my YT page, you can see it in use when I was cutting some aluminum parts. I don't know what the right feed & speed would be for brass - you'll have to experiment. Also, do NOT take full depth passes! When cutting non-ferrous metals, I would recommend no more than .015" for the 1/8" bit and .100 for the 1/4" bit. The issue is machine deflection due to load. (that and without flood coolant you'll likely have chip re-weld issues and snap the cutter in half) cool case. g.
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#2974740 - 03/11/10 09:08 PM
Re: . New Simpit build
[Re: MudPuppy]
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Joined: Jun 2009
Posts: 792
PropNut
Member
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Member
Joined: Jun 2009
Posts: 792
Greenville, Michigan
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Here you go, some pictures I took during the build. I started on Sunday with boxes full of parts and yesterday I finished after running several test jobs. Today I made a pen attachment to use for my other addiction, R/C airplane building. I can lay out wide roll paper and use the table to draw plans, etc. I can then cut out those plans using the CNC, life is wonderful I decided to use my outfeed table as the CNC table. There is 9+ feet off the sawblade for clearance if I am cutting anything wider than 36", I can still go 12'+ to the wall for cutting Corian countertop material. (perhaps I will use the CNC to cut them for now on, muahahhahah!) You can see the rails (X-axis) attached to the table sides now. The gantry (Y axis) assembled and attatched to the X-axis rails. The Z-axis and spindle motor (Bosch 2.25 HP router head) attached. Note the chain drives on both the X and Y axis'. This works very well and is increadibly accurate (surprised me as I didnt expect pinpoint accuracy but I got it). The Z-axis showing the 12"x10tpi (teeth per inch) lead screw. I need to clean up the wiring an perhaps put a coat of paint on the raw wood. I am pretty sure I am going to design a prettier setup and use this machine to cut out the next version though, so maybe I will leave the wood as is. A cheap P4 2.2ghz all in one PC (Omnitech) from Ebay (79.99) completes the system. Parts: V-Groove roller bearings (3/8)for the slides (VBX.com). 1/8"x3/4"x8' Aluminium angle from Menards as slides. 3@10' #40 roller chain from Northern Tool Sprokets and idlers from Spacely Space Sprokets (ok, from McMaster Carr) ( tooth #40 main sproket) Gecko G540 breakout board and drivers Keling 387oz motors (1 for Z, 1 for Y and two for X) 48v power supply (also from Keling) lots of sweat, nuts, bolts...and...oh yeah, a bit of blood (darn MDF soaks it right up) Mach3 control software Design CAD for making pretty pictures to size.
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#2974767 - 03/11/10 10:26 PM
Re: . New Simpit build
[Re: PropNut]
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Joined: Aug 2006
Posts: 202
Valisk_61
Member
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Member
Joined: Aug 2006
Posts: 202
Widnes, UK
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Nice work PropNut I bought a small CNC to help with my backlit 'pit panels and small components. It's become a whole new hobby in itself. Here's a pic if anyone's interested: At $580 delivered, it's right at the bargain basement of CNC machines, but it's surprisingly capable. There's quite a learning curve, especially if you're new to 3D modelling
FS~Valisk 'Val' www.skiesoffire.org"I've never seen the Icarus story as a lesson about the limitations of humans. I see it as a lesson about the limitations of wax as an adhesive." - Randall Munroe
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#3018408 - 05/25/10 01:05 PM
Re: . New Simpit build
[Re: PropNut]
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Joined: Jan 2004
Posts: 1,221
f15sim
More projects than sense!
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More projects than sense!
Member
Joined: Jan 2004
Posts: 1,221
Graham, WA
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The thing about CNC is that you could have a multi-million dollar machine and still produce junk because the tool paths aren't any good. VCarve Pro has a HUGE number of post-processors that allow you to produce code for just about any CNC machine on the planet. The cool thing about Vectric is that not only is their documentation top notch, but you can download an evaluation copy that'll do everything except generate the CNC instructions. VCarve Pro has a "preview" mode that is so accurate that providing you don't make any mistakes setting up the machine, you'll end up with a part that matches the preview exactly. g.
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#3018506 - 05/25/10 03:54 PM
Re: . New Simpit build
[Re: f15sim]
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Joined: Aug 2006
Posts: 202
Valisk_61
Member
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Member
Joined: Aug 2006
Posts: 202
Widnes, UK
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Anything to make life easier. I was thinking of buying Vectric's Cut2D application - it seems very reasonably priced and judging by the information on the website, it should be able to generate the simple shapes I'm after.
FS~Valisk 'Val' www.skiesoffire.org"I've never seen the Icarus story as a lesson about the limitations of humans. I see it as a lesson about the limitations of wax as an adhesive." - Randall Munroe
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#3031651 - 06/15/10 06:00 AM
Re: . New Simpit build
[Re: PropNut]
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Joined: Jun 2009
Posts: 46
DarrylH
Junior Member
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Junior Member
Joined: Jun 2009
Posts: 46
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WOW..all I can say really. I've just read your entire thread David,great stuff!!
I like the "generic" aspect a lot. The only question is, when you redo your panel, will you be shifting some of the switches down onto side walls, or are you leaving them on the MIP?
I can probably get you good pictures of an SE5a panel if you wanted to recreate that as well as the shape.
Anyway, VERY jealous of your woodworking skills.
cheers
Darryl
PRU Spitfires..alone, fast and stealthy. In memory of Flt Lt Tony Hill who, on 5 December 1941, at the request of Doctor R V Jones, successfully photographed a small "Würzburg radar" at Bruneval on the French coast. This from a height of only 200 ft, at high speed, under fire and from a camera mounted obliquely behind the cockpit.
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#3031871 - 06/15/10 02:43 PM
Re: . New Simpit build
[Re: DarrylH]
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Joined: Mar 2007
Posts: 1,298
Reschke
Plankowner
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Plankowner
Member
Joined: Mar 2007
Posts: 1,298
Vestavia, AL
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Ok Propnut and Gene big question here just so I will know for the future.
What has been your total investment in building your own CNC machine versus buying a used one for the sizes you are working with?
I am asking because I just bought a house with a huge basement and the wife is ok with me putting in a small wood/machine shop to do home projects and a few "side" jobs to help keep me sane when the real paycheck job gets me down.
Last edited by Reschke; 06/15/10 02:43 PM.
Star Citizen Referal Code STAR-MP6J-VFH7
i7-13700K @ 3.40GHz 32GB RAM GeForce 3060RTX MSI MAG Z790 Tomahawk lots of SSD's and a good old fashioned 1TB HDD Samsung G9 Odyssey 49" TrackIR 5 with Track Clip Pro Windows 11 64bit Warthog #1397...compliments of SimHQ
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#3032043 - 06/15/10 06:06 PM
Re: . New Simpit build
[Re: PropNut]
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Joined: Mar 2007
Posts: 1,298
Reschke
Plankowner
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Plankowner
Member
Joined: Mar 2007
Posts: 1,298
Vestavia, AL
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Thanks for the information. This new house we just bought needs to have some cabinets built for our new ovens and cooktop and I really think I want to make an attempt to build my wife a barn plank kitchen table. I was able to get for free an old barn/cotton storage house a few years ago off my grandparents property and every once in a while I sell a few pieces to fund a couple of new projects.
Star Citizen Referal Code STAR-MP6J-VFH7
i7-13700K @ 3.40GHz 32GB RAM GeForce 3060RTX MSI MAG Z790 Tomahawk lots of SSD's and a good old fashioned 1TB HDD Samsung G9 Odyssey 49" TrackIR 5 with Track Clip Pro Windows 11 64bit Warthog #1397...compliments of SimHQ
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Exodus
by RedOneAlpha. 04/18/24 05:46 PM
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