yes wire it into the screw terminals on the green plug
Is there a rule of thumb when it comes to the spoil board? I have not decided where I am going to build this MPCNC or what I will be attaching it too. I have seen some examples where there appears to be no spoil board and then others where its removable. I was thinking of getting that sort of MDF that already has the slots for hold downs but still not sure.
You don’t really need a fancy spoil board with holes and stuffs. Just pick some random board and screw your worpieces directly on top of it. It is cheaper, easier, less time consuming and works pretty much the same.
I agree, it gets beat up pretty fast, I screw, glue, and tape to it. Fancy hold downs are against my religion, morals, or constitution maybe? Whatever, just get your material to stay put and cut it that is about as much thought as I put into it.
Almost all the milling we did at school on anything other than large block material was done using double sided tape in very large hass mills. pretty crazy, but it gives a sense of how the old school shop teacher has been doing it for years in an semi-engineering environment.
Thanks for the information on the spoil board.
I am now running into a bigger issue… All my parts I printed at 25.4mm thinking that the EMT in my area is 1"
I just checked two local places that have Allied EMT and neither the 1" or 3/4" will work.
The 3/4" has an O.D. of 0.922
The 1" has an O.D. of 1.163
This Allied EMT product was at my local Ace Hardware and a farm store.
So now I am hoping I can find a true 1" in a larger town from me that has Lowes, Home Depot, Menards, etc.
No it doesn’t work that way.
I put it in all the descriptions, parts pages, and shop pages. 23.5mm OD parts are for U.S. 3/4" ID conduit. 25.4mm in the U.S. only works for special order stainless steel tubing sold as 1" OD tubing.
so I have to reprint or special order…
so I have to reprint or special order…
Unfortunately. I don’t think there are any other sources for 1"OD tubing. I am sure we would have heard about it. Have a look, some hardware stores are said to have 1" OD closet rod, I have found 1" OD shower rod but it immediately deforms under the pressure of the bearings.
I will go check tonight… looking at the HD and Menards website indeed it appears to be the same type of tube and not 1" O.D. however, Lowes says “actual” 1" so who knows…
I did get a quote from SpeedyMetals but not sure if they are the best ones online to go with or not.
I am not sure if this is even correct…measurement wise and quantity wise.
I asked for:
I am needing to find a reasonable price on 1" stainless cut to length.
6 @ 46.4 "
2 @ 19.5 "
4 @ 11.5"
and they responded with
4 11.500 1 od x .049w 304 s.s.weld tube A269 3.90 $2.06 PC $8.24 1 Day
2 19.500 1 od x .049w 304 s.s.weld tube A269 3.28 $3.46 PC $6.91 1 Day
6 46.400 1 od x .049w 304 s.s.weld tube A269 23.30 $8.20 PC $49.17 1 Day
at a cost of $64.32
The local metal shop around here was pretty close to that, around $3/ft uncut. I don’t have the exact, maybe $2.80
I will check Lowes… I gotta go there anyway to get the 1.25" bolts. If their EMT does not work then I will have to go with ordering online… I really don’t care to reprint… because I am lazy.
So pending where I get my tubing this is what I am thinking for a build size…
Just looking for feedback … Ehh thats OK… Ehh you should consider this… Ehh I don’t care : )
X Axis Work Width - 25"
Y Axis Work Depth - 19"
Z Axis Work Height - 5"
I have limited storage space so I am thinking of making it portable allowing me to keep it in my storage shed during the winter months but portable so I can move it into my garage when temps are over 40 degrees 
I want to build a large one but figured I should start small and then decide from there.
Mine is 18x34x4 and I haven’t had any issues with the EMT from Lowes.
I actually work for a mechanical contractor with a 300000 sqft fab facility… piles of all kinds of piping. If I remember I will ask where we source our stuff. It comes in on flatbed trucks…
We use a lot of stainless for hospitals and electronics fab facilities.
I would keep the Z short. Mine only has a few inches.
Well the Lowes EMT even though it says 1" actual is not O.D.
So either I reprint or get the stainless tubing. Will have to put this project on hold for a week or two as I will most likely get the stainless but if I am going to shell out $$ for that I’m probably going to make it a bit larger.
EMT is measured by the Inside Diameter (ID).
Which makes sense since the normal use for EMT is for wiring, and it tells you how much you can stuff in… IIRC plumbing also inside diameter. Structural uses outside.
Just bought some EMT for an upgrade and it’s labeled as 3/4" (ID). It comes out at 23.5mm OD. I think that’s the size you want.
I printed all of my parts at 25.4MM which is 1" - so I will be calling speedymetals.com on Monday to order some 1" stainless.