yep sorry . i was just looking my signature for writing down the specs. i am using a gecko g540 . i think the microstep on this controller is fixed .

 

what do you mean exactly by "some threads". isnt it just a value on mach3 . is it more than that ?

the problem is that i am getting burns at the workpieces as the spindle cant go below 7500.

every time i am saying ok we ve finished with the build it is time to cut , something is comiing up. there is a lot to be learned . hard thing.

anyway i ll see tomorrow it has a drive test ( the mach3 ) witch is something i probably need to run. the g540 also has some pots that i dont know what should i do with them.

 

ok finally i stucked with 25khz ( lack of options ) and probably there wasn't 35khz for me . i guess i have to stay on low speed. after all i was looking for rigidity not speed .

thanks for ur kind replies.

 

Hi, new user here in search for some information.

I've been looking in to build Ox router and noticed that some users have made some updates to current design. What would be optimal drawings to make an 1500x1500 router with about 50mm add to Z height? I would be milling aluminium with it with normal materials line wood, plastic etc. Also is there any modifications to make it more ridig by using c-beams on Y axis?

I have some experince with 3d printing, just sold my CR-10S with tons of modifications, got tired of constantly twiddling with it. I'm buying new one when SLS/SLA/DLP printer prices come down.

 

Gobi
Look at the WorkBee from Ooznet 1000mm by 1000mm screwdrive.
That is the one I just purchased and arrived yesterday.
I want to cut aluminum as well and from my research, that is the best option available on the market
They do a 1500mm one as well but it is belt drive only, which I would not recommend for aluminum work.
Member Turk has modified his to provide more room under the cutting bit so that he can route taller items.
The only mod I am making at this stage is to install five waste board supports instead of three as I deemed that three was not enough and I wanted to provide support at the waste board as well.

 

i am having the ox and also a minimill right now. minimill is for cutting bronze and some other non ferous metals and the ox has been purchased for cutting wood . believe me wood is more difficult material than almost any metal. on the metals you can go slow and slower add cooling and cut it . on the wood there is no cooling option and also wood doesn't like slow at all so you have to be strong to be fast.

The perfect solution would be a cbeam ox machine but this is a different budget. I would say talk to the openbuilders and get one ready for buildnig with all the upgrades.

At this time my ox runs with a 10x3 leadscrew on xAxis and a printed ( abs ) nut . during the next month i hope i ll replace the y axis belts and then the structural part will take place with heat treated steel as a reniforcement material.

so in my opinion you cant have them all at one. if you want strength go smaller. otherwise you ll end up like me which i wanted all and took from the three the longest one ( sorry it is a saying here). the 1x1 meter sound better although i would prefer something even smaller.

for the record i owned three mendels with duet boards but the two of them have been sold to get to this cnc upgrade ( routers) . so you had to keep ur printer as it is very helpful when building-upgrading cncs.

 

Just for info, The Workbee is the successor to the OX, based on the OX but now with C-beams and improvements learned from their experience on the OX
Up to 1000mm x 1000mm can be screw drive or belt and bigger than that is belt only.
Hence why I went for the Workbee 1000mmm x 1000mm screwdrive

 

Ok, thanks for the info. Since I will be mostly routing plywood, plastic, wood, carbon etc, I might build that 1500x1500 Ox first. Might extend it to fit a full size plywood (1220x2440) into it. As you guys mention, those belts will not take the force coming from aluminium routing. That 1000x1000 C-Beam sure looks nice, might invest to it later on. But I will focus on the Ox now.

So what are the most wanted updates to default Ox? Little more Z, screw on X? If you could link some of those builds.

I have a workshop at my disposal, they have lasercutter and full CNC equipment. My brother is working there so they make parts offhours for me. I pay material + something for the work, but not full price what they would take from normal customer.

 

Hi everyone.

I have an OX inspired 1500x1500 CNC with C-Beams, but I'd like a little more Z-height.
I was wondering if I could just cut some new alu Y/X plates on the CNC with more height so that I'd approach the 150 mm max travel of the Z-axis, but what thickness should the plates then be?
Currently, they are 6 mm, would 10 or 12 mm make up for the rigidity loss compared with the smaller plates?

Is it even feasible to cut such thick alu plates on the CNC as is?

I'm pretty new to CNC world, having bought the machine second hand - so I'm not sure what the consequences of extending the Z height would be.

In the future I'd mainly cut wood, but it would be nice to still be able to work alu.

 

Hi @Mark Carew
Thank you for the quick reply.

If that's the case - why isn't there more Z height in the system? What are the primary limiting factors for rigidity?
Since the Z axis has 150 mm travel regardless, I'd assume that the flex in that assembly would be the same no matter the height of the Y-plates.

 

That looks really cool Looking forward to seeing more about it.

I was just out in the garage and pulling/pushing on the top of the spindle - it's clear that the deflection is mainly in the spindle mount and the twisting of the X-axis C-beam itself.
I think I'll just use the 6 mm - then I can also reuse the screws

I noticed that my machine doesn't have the small angle brackets reinforcing the joint between the X-axis C-beam and the Y-plate - what is the function of these? To increase the torsional rigidity of the X-axis C-Beam?

 

@Mark Carew
One more question - what is the purpose of the blue holes in the Y-plates?

I'm currently using the top left hole for wire passthrough, but the top right and the bottom left I don't know what's for.

 

sorry for taking such a long time to reply. on this speed i am getting a warning . if i go down to 2000mm/min it is ok. i quess that's a fine speed for a rookie but i kind of used the previous ( belt ) belt speed.

 

hello iam starting to get the hang of this cnc stuff long road of learning lol ...what( size bit) did they use for the Router/Spindle Mount

 

yea man its fun as hell sitting there watching these amazeing machines work ... iam all ways finding stuff to build build my first guitar ..... enjoy.

 

hello i`am looking to get a water cooled spindle like yours how is the weight and can u do a video of it working i have the ox build i was told the weight of that spindle would be to heavy iam useing nema 23 motor ///

 

it is a little heavy for that build but if you have a 23 stepper that wouldn't be a problem. i am using a nema 17 and it cant keep the weight of the 1.5kw water spindle i am using.

 

well iam trying to go with the 20x80 v-slot rails but can`t find the X PLATE files to make them ...

 

i am not sure what plates are you talking about . if you mean the plates that holds the stepper and the z axis i think they are in this thread . if you are using sketchup the openbuild has it own repository there.

 

yes those plates i use fusion 360 my computor wont load sketchup

 

thank u rick 2.0 u thee man

 

hola necesito ayuda y armo el cnc OX
pero no puedo configurar el nema 23 y hacer mil pruebas y solo escuchas un ligero sonido del motor probado varias configuraciones y nada, y ya no sabes qué más hacer
Modelo motor nema 23HS5328 - FASE 2 - ÁNGULO DE PASO 1.8 -
TAMAÑO DEL MARCO DEL MOTOR 57-56MM -

Precisión del ángulo del escalón: + -5% (escalón completo, sin carga)

Precisión de resistencia: + -10%.

Precisión de inductancia: + -20%

Altura de la temperatura: 80 grados máximo (corriente nominal, 2 fases)

Temperatura ambiente ----------- 20deg ~ + 50deg

Resistencia de aislamiento: 100mΩ min, 500vdc

Resistencia a la resistencia -------- 500vac por un minuto

Diámetro del eje de 6.35mm o 8mm

Driver TB6560



$ 0 = 3 (pulso de paso, usec)
$ 1 = 255 (retraso de ralentí de paso, mseg)
$ 2 = 0 (máscara de inversión de puerto de paso: 00000000)
$ 3 = 6 (máscara de inversión de puerto dir: 00000110)
$ 4 = 1 (inversión de habilitación de pasos, bool) (placa V1, V2, V3 mate = $ 4 = 0 - placa brillante V3 = $ 4 = 1)
$ 5 = 0 (límite de pines invertido, bool)
$ 6 = 0 (pin invertido de sonda, bool)
$ 10 = 3 (máscara de informe de estado: 00000011)
$ 11 = 0.020 (desviación de unión, mm)
$ 12 = 0.002 (tolerancia de arco, mm)
$ 13 = 0 (pulgadas de informe, bool)
$ 20 = 0 (límites suaves, bool)
$ 21 = 0 (límites duros, bool)
$ 22 = 1 (ciclo de inicio, bool)
$ 23 = 3 (máscara dir. De inversión de inicio: 00000011)
$ 24 = 50.000 (avance de referencia, mm / min)
$ 25 = 1200.000 (búsqueda de orientación, mm / min)
$ 26 = 25 (debounce de referencia, ms)
$ 27 = 5.000 (extracción de referencia, mm)
$ 100 = 26.670 (x, paso / mm)
$ 101 = 26.670 (y, paso / mm)
$ 102 = 199.900 (z, paso / mm)
$ 110 = 7500.000 (x tasa máxima, mm / min)
$ 111 = 7500.000 (y tasa máxima, mm / min)
$ 112 = 1500.000 (tasa máxima de z, mm / min)
$ 120 = 150.000 (x aceleración, mm / seg ^ 2)
$ 121 = 150.000 (y aceleración, mm / seg ^ 2)
$ 122 = 150.000 (z aceleración, mm / seg ^ 2)
$ 130 = 510.000 (x recorrido máximo, mm)
$ 131 = 770.000 (y recorrido máximo, mm)
$ 132 = 170.000 (recorrido máximo de z, mm)
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