Is it possible...

[GoBo]

Good afternoon all.

Quick question that I'm sure I know the answer too really but probably dont want to crush my own dream, but its ok if you guys do.

I require a CNC machine because;
1) I have a practical use for it, making small signs and letters etc...
2) Because they are cool. ( probably more important than the first point )

I will need it to cut up to around 500mm x 700mm

Here’s the kicker : Can, at all, it be made from wood/mdf?

I have seen plans and kits etc that are made from MDF, but is it a reality? The reason I question it is that I nor any of my family are metal workers or have access to metal work equipment. Everyone I know are chippies. Also the cost, I am on a very tight budget, as this is for hobby only.


Thanks in advance.

[kingcreaky]

Hi Gobo

once you have read a few posts on here you will appreciate how many times the same thing gets asked....

My first machine was made out of mdf, Drawer runners for linear motion; a dremmel for cutting and old printer stepper motors for drive...

There are many many videos on the web of people who have made wooden machines; thing is, most of these people end up starting again once they realise the draw backs to making machine out of these materials.

in answer to your question. Yes; it can be made out of MDF; dont let anybody tell you otherwise. but it does very much depend on what you are cutting out; how often the machine is going to be used; where is it going to be stored (MDF cant be kept in a damp garage)

If you are making a machine; as a proof of concept in a warm bedroom for cutting small signs; then I would encourage you to try... because you will learn so much along the way and id always encourage people to get into the hobby. if your anything like me, you'll learn a hole lot along the way.

Only thing I would say (before everybody jumps in) I would encourage to get the electronics right from the start even if you cant afford "proper" materials right now. DO NOT BUY anything before reading up on here first.

the TB650 driver on ebay is a classic example.

Matt

[GoBo]

Hi Gobo
My first machine was made out of mdf, Drawer runners for linear motion; a dremmel for cutting and old printer stepper motors for drive...

I would like to aim for somthing like this, but maybe using components that could go into the next version of the machine.

Hi Gobo
the TB650 driver on ebay is a classic example.

Im still in the process of haveing to google everything people mention at the moment. I amm assuming that these drivers are the main control for the motors, which recieve instruction from the PC/Software.

[JAZZCNC]

Im still in the process of haveing to google everything people mention at the moment. I amm assuming that these drivers are the main control for the motors, which recieve instruction from the PC/Software.

Matt(kingcreaky) was meaning to stay away from these.!!

Honestly best advise is do or buy nothing yet untill you have properly researched what your doing and working with. Jumping in feet first is 100% guaranteed to waste your money and time.
Then hopefully after doing this you'll realise that MDF/draw slide approach isn't worth the time or money and go straight with doing it correctly first time. This doesn't mean throwing loads of cash at it either, it can still be done relatively cheaply with careful buying and patience along with a little help guidance from others.

MDF/Draw slides path is time & money wasted on what could be good cheap machine that will return any investment if no longer required which isn't the case other way around.!! . . .It's scrap bin fodder.!

[kingcreaky]

As im being quoted, I feel the need to re-post for clarity

I stated my first machine was made using drawer runners, printer steppers and mdf... I didnt point out how shockingly bad it was!!!

think how much "play" there is in drawer runners.... then imagine what that would do if you were engraving on something mounted to them

Have a guess how long you think it would take before the screws holding the mdf machine together work there way loose in the soft mdf material and the entire thing starts wobbling.

and mentioning the TB650 driver; was meant, in a bid to try and warn you against it...

read carefully what people have wrote here; they are all right. Although it is "possible" to make a machine using household items... it may not necessarily do what you want it to do.

dont buy any electronics before reading and asking here first.

[GoBo]

Hi Matt.

Thanks for the helpfull reply.

That's the kind of post I was hoping for. In my eyes this machine will be just a prototype for something a little more substantial.

Currently it's going to be used a few times a week. But if it actually works well then more and more hopefully. I want it as a tool to assist my wife in her craft business.

I work full time as an It manager but my dad who has his own wood working shop has offered floor space for it to go. He's offered to go "in" with me on the project too. Yes - I'm sure he wants to use it afterwards too.

I really want to keep the build to a few hundred pounds. But realise that there is goin to be a minimum that's going to need to be spent.

So hopefully a lot of advice and second hand components will be found here.

[EddyCurrent]

I really want to keep the build to a few hundred pounds.

You may be overlooking the cost of electrics ?

[irving2008]

Although wood is no substitute for a stable material such as aluminium profile which can be worked with simple tools (invest in a few sizes of decent drill bits) don't go down the mdf route. If you must use wood, use a decent quality ply and engineered wood techniques.

[Swarfing]

If you really want to take the wood route then i would recommend 'bamboo ply', about the strongest stable wood you will ever use.

[GoBo]

Hi guys thanks for your input. Seemingly one of the friendliest forums I have been on.

I know it's not going to be high end but I really do want to go down the wood route. As mentioned my dad has a wood shop so tools are at the ready.

Lol yes my costings a probably a joke at the minute.