Help!
Yes, I tried searching. But my friends usually laugh at me when I say that.
Using this download: https://www.thingiverse.com/thing:1671517 I started printing on my raised 3d machine. Prints have been going well. Borrowed a pickup truck, some 1" conduit from home depot later and the conduit is too big. By a good .200"
Took the assembled slide (bearing assembly?) to home depot and tried the 3/4" conduit. Way too small. Other 1" same results.
Suggestions?
Thanks!
Andrew
There are 3 different sets of printed parts C-23.5mm, F-25mm, or J-25.4mm (1in). The measurement is for the Outside Diameter of the conduit/rails/tubing. Please measure your rails before printing. 23.5mm fits 3/4″ EMT conduit in the US. Anywhere else you must physically measure first, some things are sold as Inside Dimension (ID) (conduit), or Outside Dimension (OD) (Tubing). Bummer
Ryan,
Thanks for your quick response. Is that link not for the 1"? Is there a nominal dimension I can check to make sure this is not a printer error?
Andrew
1" conduit is not 1"OD
Ryan,
Your last reply confused me. I have the wrong link?
Thanks!
Andrew
I am unclear as to what you are doing as well.
I suggest you test your printer with a test print 100mm in each direction.
Andrew, what are the outer diameters of the 1" and 3/4" conduit that you can buy? (In mm please 
)
I know that the ones I can buy in switzerland are not compatible, what is sold as 3/4" ID here has an OD of 26.5mm or so, and 1/2" ID has 21.5mm OD. (But it’s not sold as electrical conduit, it’s plumbing so I guess that’s a different standart…)
If you live in the US you should be able to buy electrical conduit with an OD of 25.4mm or 23.5mm at a hardware store, if not Amazon is your friend. (link for 25mm stainless)
Pipe - tube sizes are partly historical and part use, this may help.
https://www.commercemetals.com/tube-vs-pipe-the-differences-explained-in-plain-english/
Add into the mix the change over from Imperial to Metric standards and you have a nightmare.
Just for interest, in England we used to have lead water pipe this was measured in Pounds per Yard, the more pounds the bigger the diameter.
I still have some in my cellar - not used at least by me but still connected to the water main, I have been trying for years to get it disconnected by the water authority.
Bill.
OMG! That’s like 1920’s to 1930’s plumbing! Check your water for lead contamination. If you have lead in your drinking/ bathing water, it’s poisonous. That should make them change it or sue them for health issues. That should have been changed 3/4’s of a century ago.
As I said I don’t use it, the house is over a 100 years old, an isolated row of 8 Victorian terraced, a new supply was laid by the WA about 15 years ago and they were supposed to come back and terminate the old supply, I removed all lead pipes at that time including unused lead gas pipes.
I’m the last in the line of supply, I’ve had three leak in the last 5 years and I’m down to about 6" of pipe sticking out from next door, if it leaks again it’s going to be his problem.
The crazy thing is the guy at the far end is a registered gas fitter and he supplies his boiler with it and has two children that have grown up there.
Sorry for the long hijacking post.
Bill.
So i ran into your same issue today… conduit, tube, emt, whatever in the US doesn’t seem to fit right… what I found that fits perfectly is overhead garage door torsion bar. Perfect 1" (25.4mm) OD and available in multiple lengths. I bought a couple at Menards today and lowes carries them too.
I printed all my parts then went to buy the conduit and paniced when nothing fit.
The brand i got was ideal overhead garage door torsion bar.
Good luck!
All,
Thanks for the responses.
Bill, in the Victorian, with the lead pipe… could you send us a picture of what a real lead pipe looks like?
Ryan, I printed a tube with a 1" ID (as I had problems with inside dimensions on a few other prints). Just using veneer calipers the printed “tube” had an Id of .998 to 1.002; well withing tolerance of what we are doing.
1" conduit at both Home Depot and Lowes is 1.162" OD. which is 29.464mm
3/4" conduit at Lowes is .924" OD which is 23.4696mm
p.s.
So reading: https://www.thingiverse.com/thing:724999 leads me to believe that the standard US spec for the build is using 3/4" conduit? (why would it be listed as metric?)
Are there a copy of the raw assembly files somewhere? It seems silly that we have two metric sizes, and one standard size, for a device that is designed to be built using conduit yet, the standard size does not fit conduit. Not a nightmare, just super confusing. And I am super glad I did not pay for the already printed parts!
Hope you all are having a great day!
Andrew
Brad,
Looking on the Lowes website, no luck.
Home depot only has torsion springs.
Do you have a part number? or link?
Thanks!
Andrew
So you know the set that fits this is 23.5mm, sorry metric is that uncomfortable for you but i do have it specified as such on several pages that 3/4" conduit is the right stuff.
Ryan,
Thanks. And yes, I do prefer Freedom Units. (Back to back World War champions!)
Do you know what program the latest design was drafted with? I am super tempted to update it for standard conduit sizes.
Thanks!
Andrew
Here is the link to it on menards website
I didn’t find them on lowes website, but the store had them. They are available in 9’9" or 17’ lengths. And at my local stores cheaper than EMT.
Why do you keep saying this? 0.9252" (23.5mm) fits standard 3/4" conduit. It has worked perfectly for thousands of builds over the last 3+ years. It already works, no need to change anything.
I do not have CAD files available.
I do not have parts for 1" conduit (not 1" OD). I have parts for 1" OD stainless tubing.
Andrew I have started a post here https://www.v1engineering.com/forum/topic/lead-pipe/
so as not to clutter this thread.
Bill.
