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Deannos - for your location I know a chap who works on the road, he is often up and down the country so I might be able to get him to drop it off when he's passing - this could be another option

[Please note this post is not quite finished - I will be editing it in the next few days to include costings among other things]

Just over two years ago, when I made the steel frame for my router...

Just the sides would have been enough.? How wide is this machine.? Looks wide so I'll warn you belts this wide are not easily found and you may have to get them custom made.? I did and my machine...

Dean don't worry about it your only cutting wood the box section will easily handle it. The box can resonate but cutting wood it won't really matter or show.
There are also ways around this if it...

Ok thats good but bring the screw to the front, will be much stronger having the ball-nut close the Z Axis back plate.

Have you got the 20mm steel plate.? If not I think you'll maybe change your...

Dean if your intention is still the same has before to only cut wood then ignore Jonathan he's talking over complicated bollocks again and it will easily do the job.

If you can get the Large box...

Yes, that's what I say to him. For example:


Dear Chai,

Pleas could you give me a price for:

1 of RM1610-910mm with nut and end machined(standard end machining, F increased to 30mm for...

You can have belts made to any length you want, that what I did with mine. I use a local bearing company so try your nearest decent bearing place.

Regards the belt design and heres one way using 2...

Great Jonathan but in a thread like this surely the target is to help the person who's building come to a design that suits his needs not others.? Thats how approach every thread.
First and...

Hi Jazzcnc,

I totally agree with you that I beam would be sufficient for cutting wood. I just wanted to show Deanos the improved performance of RHS to explain Jonathan's point about how it could...

Ok didn't see this or Jonathans last post so this apply's to both post's.

First I'm not knocking the Calculations or saying they are wrong but your both missing the POINT. . . .!! IT WILL DO THE...

My advice on sketchup, I see you are scaling the supported rail and the mounting blocks as one,

If you double click the entity, then you will be able to select them separately and then select the...

Yes it's Ali plate and yes it cuts very easy using hand held circular saw used for cutting wood so long as it has a TCT tipped blade, preferably with a thin curf.
There are purpose metal cutting...

search 'rm2005 cnc'

Dean regards dimensions Gantry width, Y Axis etc then you want to get the dimensions of the actual bearings your going to use, these will dictate the minium width.
Also if you are planning on using...

Hi Deano.
I thorughly agree with JazzCNC and Jonathan about drawing out your design with a CAD package. You can see this from my thread here...

Belts... advantage is less power required to achieve higher acceleration and speed (since kinetic energy of moving belt and pulleys is much less than a long rotating screw). For a long axis it should...

Hi Dean, What your asking is very hard to answer accurately without knowing the design and will change with different design.!
That said I'm soon going to be building for someone a steel framed...

By demo's if you mean the road runner code etc then they use imperial units, this will most likely be the problem.
So when it say F60 for instance it means 60 inch per minute which is actually...

Yes it is easy!

It should travel the correct distance (but not necessarily the correct direction) as long as there is not some descrepincy in the units (metric/imperial). Try jogging it to...

Though it is good to use the microstepping value you have chosen for smooth running it may limit your feedrate if the kernel frequency in Mach3 cannot be set high enough. In which case lower the...

Easy, --total number of step / pitch

In you case for the 16 x 2 axis that 1600 / 2 so set to 800

For the 12 x 1.75 that's 1600 / 1.75 so set to 914.2857

You should connect the mains earth to the computer case, and connect the now earthed computer case to everything else at one point. That's the screening, PSU and spindle if it's one with a metal body...

Cool so use the cores like you are then, at the driver end strip the outer sheath and the screen back to something your comfortable with, then at the BOB end of the cable connect up like you have for...

Wire the switch so the circuit is made (NC) then when you hit the switch it breaks the circuit. Really it doesn't matter which way because you can change the active hi -lo setting but best wired NC...