Archive for June, 2010

How to make PCB —Part 2

Saturday, June 19th, 2010

Last time I showed you how the Redsail min cnc router work on PCB. That is a simple video show. Then lots of friends ask me how can we make it exaclty like what you did in the video?

Actually we need 2 steps except the one with cnc rotuer

1. make your file–those drawings in software Coppercam. We use it, but if you have good kind of software. We will be gald to know it.

2. after making this file well, save it as G-code. Some friends will feel strange, cause normally after making file ready, we need to import it in artcam or type 3 or Ucancam to make toolpath. But for making PCB with Coppercam, the importing is not necessary.

Then you can import the G-code into our cnc router  RS-3636.

P.S: Redsail now make all cnc routers with USB connection. That means, we only make a toolpath in artcam or type 3 or Ucancam then import it into the USB handle controller, then we can control the router with that handle.

If you want to knwo the details about the job, dont hesitate to contact Redsail.

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Dual head laser cutting machine from Redsail China

Friday, June 18th, 2010

Redsail have new upgrade with the laser cutting machine.

This is our laser cutter model CM-1490:

working size : 1400*900mm

power: 80w

This kind of machine double the increase work efficiency highly, saving time and cost for customers. Its quite good for working large quantity job.

Please contact us if you need two-head laser cutting machine.

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Driver for coreldraw X4

Saturday, June 12th, 2010

All our Redsail customers and friends know that our laser engraver or laser cutting machine, works with software easycut. And this software support coreldraw and autocad output directly.

Its really a good choice for the people that work with coreldraw very well.

Now we had upgrated the driver for coreldraw X4. So friends who use easycut but start to use coreldraw X4, please come to Redsail for any support.

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what do you prefer?

Saturday, June 12th, 2010

As all we know, for a cnc router, we normally have two types of controller–one is PCI card type and the other is DSP handle type.

See Redsail mini router RS-3636, we use PCI card for it for quite long time; but its quite complicated because now people prefer USB for router working now. They think its convenient. Then if we have USB, why do we need PCI?

Everything has its good and bad side. DSP handle is convenient,but USB memory has limit memory, and so does the handle. So it will be very slow if we import a large file for big cnc router design. And its easy for PCI card.

But PCI card means you also need another software to support the whole working.

So what kind of machine you want to use, depends on what kind of job you want to do.

So what do you prefer when choosing a cnc router?

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Which one is better?

Saturday, June 12th, 2010

Lots of people have made extremely impressive machines with ACME screws and stepper motors. These components are perfectly suited for hobby and light industrial cnc machines, and in general offer a much better value than ballscrews for people interested in doing cutting tasks that don’t require +/-0.001″ accuracies or better.

While ballscrews are more efficient, high pitch ACME also runs smoothly and does a great job of converting rotational motion to linear travel. Furthermore, unless you get a double ball nut or a ball nut with oversized balls loaded in it for your ballscrew, as well as angular contact end bearings for them ($$$), it’s possible to get worse backlash in a ballscrew than in a low cost anti-backlash ACME setup.

As to stepper motors of cnc router, these are proven technology that are easy to setup, and can offer truly impressive performance. If one has unlimited funds, then by all means, go with servo drives and planetary gearheads, and have fun tuning PID loops. It is fun — I used to do this for high speed pick and place robots. But for a beginner or anyone on a budget, steppers can offer an excellent performance/$ ratio, especially when coupled with a high end drive like the G540, and are quite easy to set up.

But in Redsail, you can find different types, ball screws, square linear guide ways, etc. We also have servo motor for our woodworking router.

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