haha thanks man. Now i just need to find an adaptor so i can use 1/8 collets in my 1/4 trim router. I need to use bits that are smaller than 1/8 at the cutting end. Also what would you guys use to cut g 10 material. Thanks

You don't have to explain!!! We've been there, we've done it and we've bought the T-Shirt!

Congrats and good luck, my man!

I'm bummed, all the 20x60 is gone from the store.

Also I'm not happy with the eccentric spacers in my design. They are some wacky mix of metric and SAE units which is frustrating. I wish I could just get rid of them entirely...

Congratulations, great to see a self build on here!

They must have found some 60x20 in the back of the shop. I put in my order for parts.

I did not order any eccentric spacers. I've seen a number of designs like this one from CNC Router Parts:

Wheels are assembled into a Bogie and then mounted to the plate. Tension is adjusted with a screw and then the bogie is locked in place with a couple of bolts. The version in the video is a complex machined part BUT you can make one out of wood or ALU angle. Its not that complicated and it should reduce the cost of the machine. $26 in Eccentric spacers buys a lot of MDF and basic bolts.

@Gareth wow man that looks like a great system very clean and simple

I have most of the parts for my OX build. At a stand still right now. I need the GT2 1/4" bore pulleys. Anybody have suggestions where else these can be found?

http://www.sdp-si.com/ is the source of all of that stuff.

[edit: I linked to the wrong site initially.]

You probably want this one:
https://sdp-si.com/eStore/Catalog/PartNumber/A 6A53-030DF0608
GT2, 2mm pitch, 30 teeth, 0.25 inch bore, 6mm wide belt, double flanged.
Please check my work there before you go ordering ;-)

I have a bunch of pulleys from robotdigg, that were pretty good. they are on my GT2 upgraded Solidoodle3.

http://robotdigg.com/product/94/GT2-Pulley-18-Tooth-6.35mm-Bore

Thank you very much. Looks like just what I need. But WOW did you check the price? $12 each. Will cost $48 for four pulleys.

Suddenly the $12 ea. looks reasonable compared to Boston Gear at $23+ ea. LOL
http://www.amazon.com/Boston-Gear-P...(3mm)Timing Pulley - 20 tooth - 1/4 Inch Bore

On Pulleys ... I plan to drill out 5mm to 1/4 inch but will not get to it for a month or so, maybe others will be in the store by then ... seems there should be enough metal in them for this enlargement.

Need a bit of help ... anyone else cutting these plates have any problems with the size of the holes being too small for 5 mm bolts and eccentric spacers? Best way to calibrate and fix? Do I need to change the bit size (seems mine may be undersized or is cutting undersize) before I set the inside cut lines?

I bought a 1/8" bit ... but have not measured it. I did play around with bit size in the setting, but did not seem to have effect ... which is why I wondered if I need to erase and redraw inside cuts after I change the bit size setting? Holes and slots are just a bit too small, I can enlarge them, but then seems I lose the benefit of CNC milling!

Thought I would share my first project I'm working on. It's a mini for quad frame that's cut from G10. Did a great job. Only problem I'm having is the holes are a little oblong. But the machine right now is only 1 hundredths of an inch out not bad just need to do some more tuning.

@Mopar32985
Thanks, good advice which I will now follow .... live and learn! Maybe I will try another color, I am getting tired of black.

@Forrest DIetrich

Which advice are you referring to

Sorry @Mopar32985, it was the advice of @David the swarmer to which I meant to refer ...

Could I use 5/16" all thread for the Z axis on the OX build? What is everyone else using?

I think my routy is using 5/16" allthread. Works great with no microstepping. Just get a very straight piece.

Thank you. I think I'll give it a try. If it doesn't work ~ lesson learned and move on. I'm hoping the parts store will soon stock all the parts one needs for this build.

@GrandpawB, allthread works and is inexpensive but has the drawback that you need a nut that is connect to the part that is moving. That nut has to have as little backlash as possible. No backlash is ideal. Using a good timing belt is nearly backlash free out of the box. On a z axis you can get away with a bit of backlash, if you don't do 3D carving. On the x and y axis' you have to have no backlash (most software have can compensate for it but it's not ideal).

Thank you. Bought my materials this morning. Local hardware wanted $1o each for the bearings! Got my OX 90 percent finished. Still need to order my Z axis step motor from Geckodrive.com and mount it. I absolutely can not get the play out of the Y axis no matter how much I adjust the eccentrics. Grrr.

I found that for MY motors, 6.5 mm drill bit was a better fit.