Yep. The links are like that on every part I looked at so something changed and is causing a 404 error.

 

Hello, I would like to build a CNC for my rc shop. Would the Routy cut 3mm carbon fiber?

 

Who do I contact about the inability to download the OpenBuilds' opensource files due to the 404 errors?

 

I am very new to this place so I am not even sure who those two are. :/

I went to http://www.openbuilds.com/members/ and found out though.

Thanks I will pm them the issue.

 

what spindles are people using. just burnt out my second dremel.....

 

I was looking at the Melzi board. I know it's been designed for 3D printing, but it has all the right components, and if you add heatsinks and some sort of cooling, you can get 2A from the A4988s.

At $35 for a complete board, with drivers, power attenuation, USB, SD Card and the ability to add bluetooth if you want (I've got LOTS of bluetooth modules), it looks like a steal.

Obviously that's the cheapest, nastiest board available form China, but the decent (SainSmart for example) boards are only about $50.

I can't see any reason to pay $130 for a controller only, when it has the same spec and the packaging means a whole lot more cabling than an integrated board. Of course, if I blow a driver, I would have to add on a separate driver module, but I'm careful and Arduino is my thing...

Any reason not to use such a device? I am new to CNC, but have had a 3D printer for a while and am familiar with the hardware - the only difference that I can see is the inertia involved in something like a Routy. The sliding components mass a lot more than my Mendel.

 

Remember the A4988 has the heat sink pads underneath so decent cooling for them is nigh impossible AND I know Sainsmart and I will never ever touch another of their electronic parts again. I dealt directly with them and they have some serious quality control issues and they know it but refuse to fix it. Just a regular 3d printer blew all of their A4988's within 2 weeks of printing and the generic ones I bought have never failed so consider that as well. All of that, after replacements had the same issues or worse, and, as I said, I am done with them forever.

So, no Sainsmart if you are smart and trying to get a continuous 2A out of an A4988 and I will tell you good luck my friend.

 

On reflection, I have a ton of spare Arduino Nano's - a prototyping board to mount the Nano (running grbl), and 4 Pololu DRV8825 drivers, that would make a lot more sense and only cost about $40... Packaging them in a printed box with heatsinks and a fan would be simple.

 

can someone help me choose a spindle. im after something as good as my dremel without the inconvenience of burning out after 3 months medium use...
any help choosing something would be great. i saw the ox spindle mentioned on here before but without a working machine i dont see how id go about adding that(cutting the aluminium parts)
thanks
mevo

 

Hi,
Sorotec of Germany has just come up with a 350 and a 500 Watt HF spindle. ER11 collet...

http://www.sorotec.de/shop/index.ph....html/XTCsid/dcc57dfd658aa68bdb337b1275bbda7e

Based on their reputation this should be a product worth its price

greets

flo

 

That 500 Euro sure put me off.

 

From what I have seen on American TV the wages a German commands is extremely high in comparison to the minimum wage junkies in the USA or the peanuts per day slaves in China. So, I do agree with you and while they are extremely well made (German engineering and manufacture ring) the price is too steep for most hobbyists regardless of the aforementioned German quality.

 

Hi,
well, price is one thing to consider.
Quality and longlivety as well as Power/cutting speed the other. Not to mention noise.
I know people who burnded 6-7 Dremel routers before switching to Kress then burning 2-3 of them and now use a
HF spindle since ages.
So looking at the long run...
I use a 800 W Hf spindle myself and have never looked back towards the kress.
Actually i have lent mine to a friend who actually burned it while running a 3D job.
That is when you really start to aprciate the quality - running 5-10 hr jobs..
Just milled a negative mould of a slope plane`s elevator today ( 3D job) runing the machine aprox 5 hours milling corean (LIKE LG himax).
No worries....

Try that ( still for a hobby) with a dremel like router.

For me it was worth the wait/ saving money for this ..

greets

flo

 

Who in the heck uses a Dremel for these things if they have any sanity that is? The noise alone is bad enough and if they worked with a Dremel at all they would know it isn't made for running for long periods of time. A water cooled spindle is the way to go but not at those German prices unless you have too much money. I understand about paying for quality but there comes a point when the price exceeds what is tolerable in a Hobby and remember a Hobby is doing the same thing a business might do only you don't make money from it.

 

Sorry for my english,
i am not a native english speaker.
In my area we use Dremel just as a synonym for any small router (brushed motor) .
So a spindle one sice and step down in quality of the kress.

 

When I speak about a Dremel I mean the actual moto-tool Dremel or any of its knock offs. YES, the Kress is nice but way overkill in price for a Hobbyist. Now if I knew I was going to make money from future projects then I wouldn't be a hobbyist anymore and would buy one.

btw, you do better in my language than most native speakers do so no apologies are necessary.

 

Different levels for sure and I don't consider the vintage air craft person to be the typical hobbyist either.

 

For what it's worth, by the time I factored in the expensive shipping, the VFD, the water pump, some collets, my new Chinese water cooled spindle cost me more than $500.

The alternative from Kress was going to be more than 500 Euros, not as powerful, more noisy, not as big a collet (so less choice on bit sizes) and slow but expensive delivery from Europe.

It's a hard place to be in - to want to cut using 2mm bits at high resolution, with small runout and high repeatablity, but at a reasonable price.

Shipping costs kill most of us outside the US and Europe - I had to pay nearly US$250 just for hardware for my Ox - it all has to be freighted in because the nearest thing to a machine screw in this country comes galvanised and in half-inch. I am even having to import vacuum-cleaner hose because the only hose I can get is the one sold with the vacuum cleaner - no accessory or off-the-roll available.

So for you in the US, thank your lucky stars - my Ox is going to cost me nearly US$3.5k and half of that is shipping.

I was looking at a CNC Router Parts machine, but the shipping on that was US$2700 alone. The amount charged by US freight companies and the USPS really is criminal. I shipped a 1200CC BMW from one side of the world to the other for $700, but a hundred kilos of machine parts costs as much as a whole car?

 

Borneo - and there isn't enough people wanting anything engineering-wise to justify a business.

 

Believe me, I have thought about it - but before there's a market you need to generate an interest and an actual knowledge of what is possible.

The prevailing attitude here has always been one that accurate and technical things are done somewhere else and brought here by overseas companies. The quality of merchandise is limited - I have to import wire, for example. The only wire available locally is AWG12 solid-core house wiring cable. Electronics? Forget it - not a capacitor or a resistor to be found in the whole place - let alone transistors, ICs, etc. Forget what you have heard about industrious and go-ahead SE Asia - this is the jungle. They build things by throwing a lot of bodies at them and pouring a lot of concrete - measuring comes a long way behind that

I am sure there are some trained locals that are interested in fun engineering, but they are so few and far between as to not be able to structure a business from them. There are certainly enough people with engineering degrees - all in the oil industry.

What I can do, though, is set myself up as a Maker Lab - type environment. Make my own stuff, but also take on jobs from other local designers. I do electronics, programming, embedded systems, woodworking, mechanicals, and now - 3D printing and CNC. I've been reasonably successful with custom embedded systems programming, but getting outside my limited specialist market has been a job and all on the back of my hobby - RC planes.

I want to institute some sort of robot challenge - based on Mini Sumo, probably. From that I might make a couple of larger bots for demonstrations and get some impetus that way. offer custom acrylic

I have enough microprocessors to make around a hundred bots... but few people know what's in my workshop

 

Thanks for the offer...