Cheap N Easy

[Clive S]

Well I've been told to start a build log for a Cheap n Easy CNC with cutting area of 900mm x 900mm.
As I would like to turn this into a kit a some point I'll stick up what Ii can for criticism.

I don't think I told you but suggested it But please don't be offended by what you get in feedback as it is all meant in good faith.

You will need to state what your aims are ie what you want to cut with it etc

Good luck with the build.

[CNCKitMan]

No hard feelings fella, it was a little blunt . I'd love to know what the problem you see me encountering. as i may be able to pre plan away the issue before it arises.

I've just been giving the DL on past posts which makes everything clear now.
I'm not planning on disapearing but to produce. hopefully i'll have something to show you sketch wise shortly.

[CNCKitMan]

Bad pictures yes. 2nd x axis rail not in use atm.
But it will have one. Y axis both rails in place.

[Clive S]

Well its different, it will be interesting to see it cut

[CNCKitMan]

Well its different, it will be interesting to see it cut

Well she moves real smooth. But it's nowhere near put together. It's literally clamped down.
Waiting for couplings as had to test with cordless drill. Which worked a treat.

[CNCKitMan]

Yep I'm still here. Just been debating and waiting on parts.
so i've been dicking about with my moch up as i learn better in the physical.

So then i had my Y Axis working. I used a toothed belt after someone asking why not.
Now i know why not. Me! I'm soooo lazy. A chain can be a length or a loop real easy. Belt not so much.

Then I worked on my X axis movement.
Had to get creative as no coupling have turned up so far! Annoyed YES!

But i had hit the weight limit for the cheapy motors i had. :(
No drama

All is not lost.

[njhussey]

But i had hit the weight limit for the cheapy motors i had. :(
No drama

All is not lost.

Don't forget you'll need plenty of power spare for the cutting forces, not just moving the axis about...



Sent from my HUAWEI VNS-L31 using Tapatalk

[CNCKitMan]

Don't forget you'll need plenty of power spare for the cutting forces, not just moving the axis about...



Sent from my HUAWEI VNS-L31 using Tapatalk

Yes brother. I spotted that. Turns out my gantry is a little heavy with the rails I aquire.

Put a shirt tty Lil dremel style tool on it as a "let's see" . Getting a first eye on the forces and how/what they do and where.

What do you think of the flat rails and the supported bar rails which being best.

[magicniner]

A chain can be a length or a loop real easy. Belt not so much.

A belt can be used as a cut length as easily as chain, if you need a continuous loop then you will need to use an off the shelf size which can mean you need to make your mounts to allow adjustment of pulley spacing, but smooth drive, lower energy losses, and reduced wear and maintenance really can make the effort worthwhile,
Regards,
Nick

[CNCKitMan]

Yeah I hear the looped belt i know you can by them presized. That's my issue right there as i would have need to buy several due to how i don't plan most things. Hey it's how i work!

The chain however i can shorten, lengthen, loop or otherwise with ease. the CON being finding sprockets for the Stepper.