8x4 Wall Mounted; Upright ply cutter

[kingcreaky]

Just one question - doesn't all the crap fall into your X axis bearing,

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...

What size of steel profile was used? Whats the total weight of the machine? Did you thread the profile for the connections or the bolts are pass through?

* 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)

[JAZZCNC]

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.

Where would you like me to begin!. . . . . . Only Joking mate for it's intended purpose of chomping ply it will be fine.!

As your about to findout going vertical is great but there's a few areas that need protecting and designing around.

Z axis one area as the crap will settle on the top edge and build up so make a cover or angled guard.
Also in your case using rotating nuts at top then crap will also fall into the bearing housing so cover that ASAP.

With lower bearings then you (know whats coming here) throw the crap away and get the real thing.! (thou that will test how accurate the frame is.!!)
For catching and moving crap Make an angled slide that extends from bed to just below gantry then crap falls over the rails not onto them. Put a wiper on edge and it will wipe the gantry plates.

I would have have put a slight angle on the machine rather than being 90deg as it helps with holding work and stops large sheets or pieces faling forward.

Keep up the good work but slow down a little rushing abart will kill ya.!!. . .

[Earle]

Just like the last build, a very useful source of information and techniques. Probably learnt more from your last two builds than 90% of the other builds on here.

i bet you spend half your time beating off people wanting builds done especially in those sorts of timescales.

thanks for the time that you have taken to provide REAL information and show what is possible if you do not get bogged down with techno crap.

earle

[Boyan Silyavski]

Just like the last build, a very useful source of information and techniques. Probably learnt more from your last two builds than 90% of the other builds on here.

i bet you spend half your time beating off people wanting builds done especially in those sorts of timescales.

thanks for the time that you have taken to provide REAL information and show what is possible if you do not get bogged down with techno crap.

earle

The time and thought you invest in a machine=the result you can expect. If you are happy with that...

[GEOFFREY]

The time and thought you invest in a machine=the result you can expect. If you are happy with that...

KC, you outlined at the begining what you expected of this machine, and I am sure that it will perform exactly as you wanted. I think that you invested wisely with your time and thought, and that you should have every reason to be happy with that!!! Well done again. G.

[njhussey]

The time and thought you invest in a machine=the result you can expect. If you are happy with that...

Who's that having a dig at Silyavski?

[Clive S]

Well, I am sorry but I thought it was a bit snide ..Clive

[AndyGuid]

Chill Out Dudes! I don't think Sylyavski is having a dig at anyone. Please remember that not everyone's brain is limited to a single language! I would guess that Sylyavski may well be proficient in THREE so please cut him a bit of slack if he doesn't have the infinitesimal grasp of both the language and culture that some might anally expect from a native Brit!

[Earle]

The time and thought you invest in a machine=the result you can expect. If you are happy with that...

I hear what you are saying... I'm just pleased to see someone applying some common sense knowledge and experience, to produce a useable machine in a very short timescale. These are my views if people disagree then whatever.

Personally I think that kingcreaky is quite an inspiration.

earle

[Boyan Silyavski]

I hear what you are saying... I'm just pleased to see someone applying some common sense knowledge and experience, to produce a useable machine in a very short timescale. These are my views if people disagree then whatever.

Personally I think that kingcreaky is quite an inspiration.

earle

Hi Earle,
what i said about invested time =result , was not criticizing the build, which as i said before inspires me too. So if i wanted to say something to kingcreaky i would have quoted him.

This was but a direct response to your words: "thanks for the time that you have taken to provide REAL information and show what is possible if you do not get bogged down with techno crap", cause according to me that needed an answer.


Cause it seemed to me that what you are saying implies that all the "techno crap" we brag here at the forum is not REAL.


Anyway it was not meant as an offence. First i wrote a long answer then i shortened it, so you will not think i am bragging and could make your own conclusion.

But here is the longer one:
Not every one on the forum will work wood with a router but even if so, a fast and precise machine is needed. What i say that many people expect their machines to make money, its not just a weekend hobby. But if you want to make money many times you need the best possible. Or you don't get the job.

Now let me give you a small example. I have friends making model boats that live nearby. last year they ordered mold for custom mast, say 4meters of 100x200mm aluminum, consisting of 2 pieces and further cut down to 2 meters ,joined together. This is a simple job, materials= ~400euro . Now put one 0 more and you will get what they paid for the mold here in Spain.
So that job could not be done on a machine which is wobbly, imprecise or will not make perfect finish, as there inside other parts fit, its cast from very expensive carbon fibre, and so on.

You get what i say? Only this missed job is more that the price of materials invested in a similar machine and half of the money i am investing in what i am building now. 2 jobs like this pay even the most expensive build.

Or i am a big fool that spends a month just to align my long rails and 400euros of epoxy + additional shimming. Not to speak of the 2m straight edge i bought especially and only for that purpose. I could have build another machine during that time.

So again i am saying it: invested time and money=result. And i would like the result to be the pleasure and $$$$. Not constant repairs, constant upgrades and so on. Nothing against fast and cheap builds. The thing is i have such machine already and i know the frustration every time before a job, during a job and later , when i want to take the big hammer and ... say f%%%k in one of the 4 languages i speak and write fluently