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22-12-2014 #1
Hi All
I was going to wait until Ive finished; but as its properly DEAD at work today, and ive exhaused ebay, and all of the forums I usually frequent under these circumstances, I thought id upload the pictures of my present build just in case anybody else is as bored as I.
I am building the machine for a friend, who will use the machine for cutting sheet ply. I started this end of last month and I aim to have it ready for start of January
The requirements for this build are as follows
* It is required to cut 8x4 sheet ply, 18mm thick with a 6mm cutter
* It needs to be wall mounted (work will be screwed to the sacrificial base)
* The room is 3m x 3m in which it will be used. So needs to be assembled on site.
* Its a start-up company therefore finances are tight, it must be as cheap as possible.
The design is very similar to my other builds (same ali gantry design IL, thick 6mm steel frame) except this time Ive bolted the entire frame to allow for adjustment
Ive cut all the steel using his three phase suds cooled industrial chop saw; which enabled me to cut the steel extremely accurately. I achieved squareness by doing minimal welding, and lots of "bolt" fixing; measuring from corner to corner.
2510 fixed ballscrews with spinning nuts (thans jonathon)
cheap chineese 860 drivers
heres the lazy design anyway (no ballscrews, or triangulation on frame)
and here is where I am so far.
Last edited by kingcreaky; 22-12-2014 at 06:51 PM.
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22-12-2014 #2
il post more, as I do more.Last edited by kingcreaky; 22-12-2014 at 06:51 PM.
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22-12-2014 #3
You don't hang about once you start !. Call me biased but I think your gantry design is a good one
Nice welding.Last edited by EddyCurrent; 22-12-2014 at 05:58 PM.
Spelling mistakes are not intentional, I only seem to see them some time after I've posted
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22-12-2014 #4
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22-12-2014 #5
Thats looking really good KC. To think that you are able design and build a machine like that in 4-6 weeks in your garage (sorry - home workshop) is fantastic. I don't think you will have much time for darts this christmas!!! speaking of which "Merry Christmas" to you and all forum members. Well done. G.
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22-12-2014 #6
Just thinking, are those SBR bearings designed to work on their side ?
Spelling mistakes are not intentional, I only seem to see them some time after I've posted
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23-12-2014 #7
Looking good! Loving the yellow. Hope you have a fun (and productive) Christmas...
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29-12-2014 #8
Very nice to be able to look at something different being well executed!
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13-01-2015 #9
Nice, I'm new to the field but interested in making a machine one day, may I ask are those rails or ball screws on the yaxis? i really like this design and would copy it if you care to share where to get them? and based on my logic i would say they are rails, so where do you plan on mounting the ball screws? or whatever would drive the y axis? thanks!
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21-01-2015 #10
YEP!!!. Im working a anti-gravity machine.... or... mounting it upside down on the roof!...
Seriously; The extraction system will have a bottom rail to catch any falling dust.
my greater worry is the x bearings being used on their side...
* 60 x 60 x 6 and 100 x 60 x 6
* Yep threaded hundreds of holes (got w*nkers wrist!)
* I Dont believe any "nuts" are used.
Nobody has pointed out any faults?? I was expecting a wooping.... this is only techically mk1... mk2 Il learn from the mistakes on this one.
So; il be honest.
1.) The biggest mistake... I should of had the ends (both) of the X ballscrews threaded; so I could put them under tension. They do sag a bit under their own weight.
2.) linear bearings being used on etheir side? X???
3.) The Z movement is way too much... it probably only uses half of the travel available (so unnecessary weight on gantry)
4.) really needs twice as many bed support braces. The distance inbetween them in launghable... space for twice as many
5.) No water cooling yet for spindle in video
6.) No emergency stops; panic buttons etc
7.) Need to add proximity for auto-square; but where I had mounted the brackets didnt account for quite how tight the fit into the room would be. Il have to re-think.
Now thats out of the way; fitting a really noisy roller shutter door to my workshop/garage (just to wind up my new classy neghbours), and to allow me to squeeze my van in.
Im then spraying van; in workshop (old vw camper)
once thats gone; take delivery of my new bridgeport mill!!!! ssshhhh dont tell misses
then start building my new machine (like this one)
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