Awesome. I'll be waiting eagerly

Hello Flo. Can you give me details about shop were you find hf spindle? Thanks

Hi,
actually you might buy just any of the chinese hf spindles on e-bay.
I got mine from a company based in Germany for 2 reasons:
I get a bill and warranty and secondly because you will need to (at least check) make sure about the elect. ground on the spindle.
As i basically have very little experience with 220V i prefered to pay a bit more for the service - for beeing safe.
Mine is from Sorotec in Germany, cost arpox 400 Euro but buy on e-bay direct in china youll end up around 250 Euro.
A FU unit sets you back another say 100 Euro.

greets

flo

Hey guys, this thread became huge so I am sorry if my question has already received an answer before.
Without changing the elements of the OX, do you believe it could sustain using 1000mm beams for x and y? How do you calculate the effective area given these dimensions?

Looks great mark I'm loving my machine. Got almost everything working the way I want it.

@kram242 That's exactly what I was after. Thanks!

Was the tear out in the photo's due to the quality of the bit or because you were running a 'roughing' speed/feed?

Don't get me wrong. The finish in the video looked much better as the router did it's final passes. I was just curious as I don't have much experience in these things.

@kram242 Another thing you can try is paint/stain the surface a single colour, mask it, route the pattern using a down cut spiral tool, paint the routed bits a different colour and then peel the masking off. I've never tried it but I have seen in done in a few places on the internet

Hey guys, I'm new here just signed up, but I really would like to build the OX. My only question is inquriey on the OX Plates, are they going to be an option soon? I was just wondering because I want to order everything and was about to, but I dont want to order everything and be short one part. Thx for your time, hope to hear back soon on my options

I can supply Waterjet cut Gantry plates and frame joiners. Check my thread in the forums.

There are at least a couple of others supplying machined plates.

I just ordered some a couple days ago from ASB_79. Look forward to getting them!

This is all new to me, I've built 3D printers, but not much of a woodworker in the past. What spindle would your recommend? I am planning on building a big Ox and will likely use CamBam as part of my toolchain. I'd like something that would be computer controlled on the spindle as I would be a little more comfortable. I did see the need for an emergency stop button and plan to put one in. Planning on having my teenage son and daughter help me with this.

Hi all,
Finished building enough to get a first cut out of my Ox this morning. Toolpathing had the little nibs in the corners, so those are on me and not the machine.
I have 750mm y-axis rails, which gives about 20.5" of tool travel. The x-axis is 650mm, giving about 18.5" of tool travel. Z-axis travel is around 3" and limited effectively by the height of the large plates and the distance between the spoilboard and the bottom of the z-axis.
My one squawk is how the z-axis wheels tighten onto the z-axis rail. I'm not sure if it was my drilling of the hole locations or the distance between them on the drawing, but they need to be about a half mm closer together. This leads to some y-direction flex at the tip of the tool when loaded up. There is also a little torsional rotation in the pair of x-axis rails that I can see; maybe pinning these together will help.
A few of the first projects will be making a real router mount, cutting all the plates (by machine this time rather than center-punching and drill pressing), and some form of dust collection.
Thanks for the original Ox drawings and the detailed parts list. I bought stuff before folks had the plates available and before Openbuilds got steppers, rod, etc, so the parts are a mash-up of different suppliers.
Dan

I like the way your steppers are connected to the hub, Dan. Looks really clean.

If you cut new plates with your router, maybe add two holes in the x axis stepper plates so that the belt will have two idelers that will force more belt over the stepper pulley.

Thx asb, I appreciate the info, but i actually am having them made by a friend.

Also, just ordered all the parts for the OX build, I cant wait till all the parts come in and I can start making it

Hi Travis,
If your friend has trouble, send me an email at chrisclub@gmail.com
I have made and shipped over 15 sets of the Openbuilds OX CNC plates, and everyone is extremely happy with them.
They are CNC machined using 9 different tools, chamfered, deburred and the aluminum is brushed.
They are $150 for the set, including free Priority mail shipping with a tracking number within the US. It is $40 extra for international shipping... I have shipped to US, Germany and Norway so far. I also have them listed on Ebay.
Chris

Hi Guys.

Just managed to purchase all the OX parts from RoboCutters in the UK and i can't wait to get started on the build.
Just got a few questions - Hope you don't mind...

Does anyone know if a variable speed router spindle would be a good idea, if so can anyone recommend one?
Where do you get your router bits from ?
What would be the best type of bit for cutting balsa wood ?

Cheers
Martin

Would it be 40$ extra for Canada too? I can't imagine that it is the same price worldwide.

Thank you!