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CNC-2116 - Up and running, sort of (2015-03-21)
Ryglore:
Oh man. I must catch up on this thread later. So much goodness to read since I've come back!
menace:
Thanks for the feedback! I started cutting mdf this weekend and managed to scrounge enough old roller blades from kijiji to come up with 30 5/16" bearings--total cost was about $10 for those :applaud: I'm going to pull the trigger on the electronics and motor bundle as I have yet to find a place to get everything together locally. My next stumbling block is the cross dowels--they are 1.39 ea. at home deport and I can't believe thats the best price for these--The build your own cnc guy sells them for .50 so I'm sure they can be sourced somewhere.
As far as the router goes, I plan on using my rotozip with its handles removed. It's 23,000 rpm and screams like a banshee but I think I can dial that back a little. It cuts mdf so fast that if you don't keep it moving it'll start to burn :o
I should really start a build thread and stop hi jacking yours ;D
Yvan256:
--- Quote from: menace on October 14, 2012, 07:42:40 am ---Thanks for the feedback! I started cutting mdf this weekend and managed to scrounge enough old roller blades from kijiji to come up with 30 5/16" bearings--total cost was about $10 for those :applaud: I'm going to pull the trigger on the electronics and motor bundle as I have yet to find a place to get everything together locally. My next stumbling block is the cross dowels--they are 1.39 ea. at home deport and I can't believe thats the best price for these--The build your own cnc guy sells them for .50 so I'm sure they can be sourced somewhere.
As far as the router goes, I plan on using my rotozip with its handles removed. It's 23,000 rpm and screams like a banshee but I think I can dial that back a little. It cuts mdf so fast that if you don't keep it moving it'll start to burn :o
I should really start a build thread and stop hi jacking yours ;D
--- End quote ---
Good idea for the bearings, I bought mine new, didn't think about getting old roller blades at flea markets. I agree about the electronics+motors+power supply kit, if you can afford it.
As for the cross-dowels, I haven't found any place that even know what these are, let alone a place to buy them. So I went with the "cheapo" idea instead.
I'm guessing you'll need to be careful with the cutting speeds if the rotozip can burn the material. Or maybe you're trying to cut too deep in one pass?
Please do start your own thread if you have something to show, another CNC building thread would be nice to read! :cheers:
menace:
Not sure if you have lee valley near you..
http://www.leevalley.com/en/hardware/page.aspx?p=44238&cat=3,41306,45375
Not as cheap as el cheapo but not 1.39 either
Yvan256:
--- Quote from: menace on October 14, 2012, 08:13:17 pm ---Not sure if you have lee valley near you..
http://www.leevalley.com/en/hardware/page.aspx?p=44238&cat=3,41306,45375
Not as cheap as el cheapo but not 1.39 either
--- End quote ---
Nope, closest one is Ottawa. Then again that means no duty or brokerage fees either.
Since I'm using 5/8" inch thick particle board/MDF, I would need the 16mm long cross-dowels, which don't have a centered hole. I'm not even sure why they make them that way.
Even in 100's quantities, it's still at least 4 to 5 times more expensive even without shipping compared to simply using a washer+nut. Ugly or not, if it costs about 5 cents for a nut and 1 cent for a washer, it means around 6.50$ for 100 nuts+washers bought locally vs around 45$ for 100 cross-dowels shipped, if it only costs 10$ for shipping. Given the weight of 100 of steel cross-dowels, I doubt it would be as low as 10$.
The price difference is almost enough to buy that TB6560 controller on eBay, since a lot of Chinese vendors offer free shipping.
Thanks for the link though, I might have future projects that would be better off with cross-dowels for a neater finish.
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