Update on my settings on SMD componenents

[Daniel "yOPERO" Garrido]

This is picture of my progress towards smd.(Atmega 32 40-tqfp) components on our CyclonePCB

Finally I have been able to mill something on my Cyclone after more than a year building and making changes to the hardware.

It has been really challenging design being plastic the material used for most of the parts. Building CNCs with metal now seems easy J

I must say that the Hardware implementation is as important as the software having an auto levelling feature makes a huge difference also applying exact calculations for this levelling feature as for the actual Z depth and spindle will impact largely on the accuracy and precision of your machine.ie find the actual diameter of your v-bit and calculating the run out of the spindle, finding the sweet point (combination of spindle speed and xy movement speed).

As seen in the image the pads milled in the y axis (top to bottom) are ok but the ones on the x axis (bottom to top) are kind of wobbly, I was thinking in recording a slow motion video of the movement but I can see that frames moves a little bit in plain sight even though my efforts to make it stronger, I will have to look at it as it may be that my whole xz frame is too tied to the motor causing it to wobble so I am going to loosen it up a bit.

So my next goal is to make the x axis to mill as good as the y axis that will be a decent quality for smd milling for hobbists/diyers standards; then I will stop there and start milling circuits because looking back 2 years I happened to have built a 3d printer a Cyclone cnc with the sole purpose of making circuits quickly, now that I have it I have forgotten what circuits I wanted to make in the first place….

My toolchain as follows:

Design: Kicad

Gerber to Gcode: http://rapid-pcb.com/   not opensourced but it has a lots of maths involved imo. Hence the excellent outcome.

CNC controller: Repetier

Firmware: latest Marlin with zprobe support G29. I am gathering info on how to add the probing area to the eeprom so it can be set up on the fly.

Bit:  V-bit 30 0.2mm tip

CNC: Cyclone  yOPERO’s mood

-extra reinforcement on the xz axis by making the frames much strong.

-extra reinforcement on the y motor holder and idler holder.

-anti-backlash device on x and y.

- X motor holder to the Frame.

hope it helps.

[Samuel Kranz]

wow very nice, thanks for sharing :D

[Iceflow]

Great post!! :D

I didnt know about rapid-pcb but it looks great, i must try it.

Thanks for sharing!!

--
Has recibido este mensaje porque estás suscrito al grupo "Cyclone PCB Factory" de Grupos de Google.
Para anular la suscripción a este grupo y dejar de recibir sus mensajes, envía un correo electrónico a cyclone-pcb-fac...@googlegroups.com.
Para publicar en este grupo, envía un correo electrónico a cyclone-p...@googlegroups.com.

Para ver esta conversación en el sitio web, visita https://groups.google.com/d/msgid/cyclone-pcb-factory/6a5e8f58-90fb-462a-80e1-d0cb18523b30%40googlegroups.com.

Para acceder a más opciones, visita https://groups.google.com/d/optout.

[Daniel "yOPERO" Garrido]

Today I had some time to mill a full pcb

This is the preview from my gcode generator:

This time I have increased x1.5 times the speed of my xy movement and this is the result:

As seen in the result my speed(feed=15mm/s) was way to much for my drill.

Para anular la suscripción a este grupo y dejar de recibir sus mensajes, envía un correo electrónico a cyclone-pcb-factory+unsub...@googlegroups.com.
Para publicar en este grupo, envía un correo electrónico a cyclone-pcb-factory@googlegroups.com.

[Carlos García]

Thanks a lot for sharing your results!! You are pushing the limits at those speeds :)

Were you using the 60deg V bits? Also, can you provide an estimate of the RPM of the spindle?

Cheers,

Carlos

Para anular la suscripción a este grupo y dejar de recibir sus mensajes, envía un correo electrónico a cyclone-pcb-fac...@googlegroups.com.
Para publicar en este grupo, envía un correo electrónico a cyclone-p...@googlegroups.com.

Para ver esta conversación en el sitio web, visita https://groups.google.com/d/msgid/cyclone-pcb-factory/c64e8fd2-0df9-4481-a3d2-e4d961c16e53%40googlegroups.com.

[Daniel "yOPERO" Garrido]

Carlos

I am using  Chinese 30deg V bits that I bought back more than a year ago, according to the datasheet of my drill it says that it goes up to 35.000 rpm and I have it at "MAX" so I'd say roughly 35.000 rpm I am afraid I do not have a tachometer to measure it properly.

Para anular la suscripción a este grupo y dejar de recibir sus mensajes, envía un correo electrónico a cyclone-pcb-factory+unsubscribe...@googlegroups.com.

Para publicar en este grupo, envía un correo electrónico a cyclone-pcb-factory@googlegroups.com.

Para ver esta conversación en el sitio web, visita https://groups.google.com/d/msgid/cyclone-pcb-factory/6a5e8f58-90fb-462a-80e1-d0cb18523b30%40googlegroups.com.

Para acceder a más opciones, visita https://groups.google.com/d/optout.

--
Has recibido este mensaje porque estás suscrito al grupo "Cyclone PCB Factory" de Grupos de Google.
Para anular la suscripción a este grupo y dejar de recibir sus mensajes, envía un correo electrónico a cyclone-pcb-factory+unsub...@googlegroups.com.
Para publicar en este grupo, envía un correo electrónico a cyclone-pcb-factory@googlegroups.com.

[Luis Ordóñez]

Simply awesome  :)  congratulations!

Is the wobbling in diagonal movements due to low stiffness of the machine? due to the control? what is your diagnostic about that? what would you do to improve that?

Again, congratulations!

[Daniel "yOPERO" Garrido]

Luis

Can not say it for sure, but my guess is that the cause is a combination of low stiffness on the frames and on the z axis components hence getting sturdy frames and z axis will help to reduce this symptom.

I am currently working in a new design that will have double frames in each side to minimize the movement of the frame across the x axis and also I am redesigning the z axis parts to make it more firmly as unit(the latter is more of a copy of the design of our big brother PORTAL CYCLONE by Martin) 

[Iceflow]

Not exactly related, but i think, for the price, 20x20 aluminium extrusion will make a sturdier and firmly machine :P we all (or almost all) know that motedis has cheap prices in these kind of extrusion, ok, not as cheap as threated rod, but not really a expensive improve over the benefits of using it... the only thing i didnt like of using extrusion its that the cyclone will be less reprap... :S

--

Has recibido este mensaje porque estás suscrito al grupo "Cyclone PCB Factory" de Grupos de Google.

Para anular la suscripción a este grupo y dejar de recibir sus mensajes, envía un correo electrónico a cyclone-pcb-fac...@googlegroups.com.
Para publicar en este grupo, envía un correo electrónico a cyclone-p...@googlegroups.com.
Para ver esta conversación en el sitio web, visita https://groups.google.com/d/msgid/cyclone-pcb-factory/ad8494f2-961d-48ad-9d04-9e8448ceefac%40googlegroups.com.

[Samuel Kranz]

I finally tuned my mill for smd parts :D.

PCB specs:

 - traces: 0.4mm

 - min. width betw. traces: 0.3mm

mill:

 - feed: 100mm/min

 - bit: 0.1 mm - 30° V-bit

flatcam settings:

 - z depth: -0.25mm

 - bit dia: 0.25mm

pics:

 

[Iceflow]

Mola :D buen trabajo!! crees que se podría reducir aun mas el ancho entre pistas y el tamaño de pista?

--
You received this message because you are subscribed to the Google Groups "Cyclone PCB Factory" group.
To unsubscribe from this group and stop receiving emails from it, send an email to cyclone-pcb-fac...@googlegroups.com.
To post to this group, send email to cyclone-p...@googlegroups.com.
Visit this group at https://groups.google.com/group/cyclone-pcb-factory.
To view this discussion on the web, visit https://groups.google.com/d/msgid/cyclone-pcb-factory/c6405300-d1d1-46d1-bfe9-9cd61685930d%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[Samuel Kranz]

probably yes.. Ive measured some traces, most of them are 0.4mm but some are 0.3mm. its probably possible to reduce the with to 0.3mm

Am Donnerstag, 18. Februar 2016 10:46:16 UTC+1 schrieb Iceflow:

Mola :D buen trabajo!! crees que se podría reducir aun mas el ancho entre pistas y el tamaño de pista?

2016-02-18 10:41 GMT+01:00 Samuel Kranz <secu...@gmail.com>:

I finally tuned my mill for smd parts :D.

PCB specs:

 - traces: 0.4mm

 - min. width betw. traces: 0.3mm

mill:

 - feed: 100mm/min

 - bit: 0.1 mm - 30° V-bit

flatcam settings:

 - z depth: -0.25mm

 - bit dia: 0.25mm

pics:

 

--
You received this message because you are subscribed to the Google Groups "Cyclone PCB Factory" group.

To unsubscribe from this group and stop receiving emails from it, send an email to cyclone-pcb-factory+unsub...@googlegroups.com.

[Iceflow]

Fantastic!! :D thanks for sharing!!

2016-02-18 11:52 GMT+01:00 Samuel Kranz <secu...@gmail.com>:

probably yes.. Ive measured some traces, most of them are 0.4mm but some are 0.3mm. its probably possible to reduce the with to 0.3mm

Am Donnerstag, 18. Februar 2016 10:46:16 UTC+1 schrieb Iceflow:

Mola :D buen trabajo!! crees que se podría reducir aun mas el ancho entre pistas y el tamaño de pista?

2016-02-18 10:41 GMT+01:00 Samuel Kranz <secu...@gmail.com>:

I finally tuned my mill for smd parts :D.

PCB specs:

 - traces: 0.4mm

 - min. width betw. traces: 0.3mm

mill:

 - feed: 100mm/min

 - bit: 0.1 mm - 30° V-bit

flatcam settings:

 - z depth: -0.25mm

 - bit dia: 0.25mm

pics:

 

--
You received this message because you are subscribed to the Google Groups "Cyclone PCB Factory" group.

To unsubscribe from this group and stop receiving emails from it, send an email to cyclone-pcb-fac...@googlegroups.com.

To post to this group, send email to cyclone-p...@googlegroups.com.
Visit this group at https://groups.google.com/group/cyclone-pcb-factory.
To view this discussion on the web, visit https://groups.google.com/d/msgid/cyclone-pcb-factory/c6405300-d1d1-46d1-bfe9-9cd61685930d%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

--
You received this message because you are subscribed to the Google Groups "Cyclone PCB Factory" group.

To unsubscribe from this group and stop receiving emails from it, send an email to cyclone-pcb-fac...@googlegroups.com.

To post to this group, send email to cyclone-p...@googlegroups.com.
Visit this group at https://groups.google.com/group/cyclone-pcb-factory.

To view this discussion on the web, visit https://groups.google.com/d/msgid/cyclone-pcb-factory/6b55c81f-0958-4b88-8092-5c90cd0f8df4%40googlegroups.com.

[Carlos García]

Looking neat! Congrats!! :-)

To view this discussion on the web, visit https://groups.google.com/d/msgid/cyclone-pcb-factory/CAHN3uBhSk6pBCKkzCOxcqxSP-DG3HH9d0SWXxX58TBB297CaXQ%40mail.gmail.com.

[Nando]

Woow.. Amazing results. :)

-Nando

Sent from my Sinclair ZX81

To view this discussion on the web, visit https://groups.google.com/d/msgid/cyclone-pcb-factory/CAJCftXVLyHw5H%3DoktPxL%2Bct6axjHH%2B7Ssd0UcXNXdy-7rM_A2g%40mail.gmail.com.

[RodNog]

First of all guys, amazing work, congrats!!!

I've been tinkering in my on Cyclone as to achieve the smaller traces as possible to be able to mill smds, but I've come across with a problem of slightly uneven thickness of copper layers (which should be solved with autolevel). For larger PCBs I'm using autolevel with a 5mm spacing between probes(both X and Y) and getting resonable results, but still not enough for smds. For those PCBs of yours, what kind of autolevel spacing are you using?

thanks in advance.