- HBM / Sieg X1 Micro mill conversion
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HBM / Sieg X1 Micro mill conversion
Hello!
I've started to acquire parts to convert my Sieg X1 clone to a CNC'd one.
Started with the machine itself, bought at http://www.buitelaar.nl/.
- 1 x Vexta PK268-E2.0A / 2 phase / 1.8 deg/step stepping motor (8 wire)
- 3 x Japan servo KH56KM20851 / (4 wire)
- components for 2 Picstep drivers
- pcb's for 4 Picstep drivers
I hope to complete the conversion within a few months.
Tomorrow I'll try to get a motorsupport of my own design milled out of a piece of alu I found at the scrapyard to see whether it fits.
more to follow soon I hope.
Gr's
Hamish
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millside
Here's an image of the current handle supportblock. I measured and modelled it so I could design the motorside of the support properly.
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I to am doing the same conversion on a Sieg X1 ;-).
I have been about three weeks in to the build and just got my x and y axis's online.
Your motor mounts look awesome. Far better than my rough drafts. I took the wood approach seeing as its what I had available. Made my first engraving last night.
I look forward to seeing updates on your project. Maybe there can be some collaboration? ;-)
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small updates
Viaharo:
You are further I have gotten so far. What driver/motor setup do you have?
I still need to program the PIC IC's for the first driver and replace the wire links.
Then I can test the driver and populate the second board.
The CNC machine I have access to (a Roland Modela MDX-20) hasn't got a coolant setup atm, so I am limited to plastic as opposed to alu. Likely I'll have to do the mounts manually on my own mill.
If you there's anything I can help you with, shoot me PM. I may be able to assist you if you want to mill out the alu versions of your supports, with drawing and such. Shoot me a PM.
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For the driver board I bought a cheap CncGeeker 3 AXIS CNC DRIVER BOARD with 5vdc .5amp PS for the controller and a 24vdc 20amp PS for the motors.
I have all the components to construct my own 3axis controller using heavier driver chips with better Response / speed / and power/. Now that I am semi online I plan on constructing much better motor mounts. Then I will use the machine to mill a new controller board.
Warning to people that decide to get the CncGeeker Board. It is a great board. The only drawback is the driver chips have a pretty low limit on the max KHz that they will accept. I am currently capped at 4655KHz. This limits my max jog to 9 IPM and a max feed of about 6 (safe) IPM. But then again I am running at 1/8th step per axis on the controller.
For the motors I am using Three
M21NSHS-LNN-NS-02 POWERMAX ll NEMA 23 BIPOLAR Stepper Motors.
I am Using Emc2 Axis for the Cnc Controller.
Good Delrin plastic would make a decent substitute for alu. My next task after the controller remake is to make new Delrin lead screw nuts because of the low friction and backlash reducing capabilities.
I plan on having pictures up of my build step by step here pretty soon. Just as soon as I can find the dang camera with the mem chip ;-)
Here is a good resource that I have been using. This page pretty much gave me the road map that I needed for my build.
http://www.embeddedtronics.com/micromill.html
They were even nice enough to post drawings for their motor mounts that look pretty slick.
Last edited by Viaharo; 11-03-2009 at 09:49 PM.
Reason: Added Link to my main refrence site.
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Update #2: Electronics
Hello,
A little heads up from me.
I've just programmed the 2nd PIC16F628A mcu for the PICStep v4 controllers.
The programmer I used is a PICKit2 design, I bought a kit for it a while ago and assembled/soldered it.
In the past few weeks I made 4 PCB's using the direct toner transfer method (There's much more info on the web about this, google is your friend.) Ordered a few sample LMD's to populate the PICStep board and went to a local electronic componentsshop (radio rotor) for the rest of the components. The first driver board works like a charm, the second I'll test tonight I hope. For now I am testing with a regular 12v AT computer PSU, but I would like to up the voltage a little using perhaps a 40v powersupply like this one.
The mechanical side of it, e.g. isn't done yet, and I had to abort the milling of a plastic (acryl) test part twice as it took too d*mn long.
For a controller board, I am contemplating either a 'regular' lpt bob and EMC2, or a usb controller. Kroko recently posted that it seems to work ok in a VM, so it's a fairly portable (wrt underlying OS) solution now.
As you can see, I am trying to built everything myself, either using kits, or from scratch. This definately isn't the fastest way, and it might not even be the cheapest either. It is a lot of fun though!. I know it's been done a thousand times before.... just not yet by me
In daylight I'll shoot some photos and put 'm up here.
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I've built a small rectifierboard to go with a 220 - 42V AC donut-transformer
The steppersdrivers & motor seems happy!
Next up: mechanical mounting onto the mill.
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HBM / Sieg X1 Micro mill conversion
Im still thinking about doing a Tamiya buggy conversion, just something about the old retro look of the Tamiya kits I like.
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- HBM / Sieg X1 Micro mill conversion
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