The foreman has a negative clearance where the x mounts to the y because theyre lower than the feet. I guess maybe it’s called the linear bearing block…
To compensate they added like 1/4" risers for the y feet that are needed on the foreman, unless you use the qcw. Even with these risers, there’s only like 1/8", so i added 3/4" scrap plywood giving me room for a towel for when i have to oil it up.
We’ll call stock configuration orgin 0
Raising the X 1" will raise the Center of Gravity 1" and your adding 2 more points of failure (per side)(the point that attached the the Y block, and the point that connected to the X block) with the extra 1". Its like putting on platform shoes. You won’t be able to run in them like you would without. (Look at Ford on Firestone in the 90s. Trucks and suvs were involved in single vehicle accidents because they rolled over… there was also a part of something being out of manufactures specs which is also relevant)
But if you raise the Y 1", your X will also raise an inch from orgin 0 since the z clearance is dependent on X height which is dependent on Ys height. But when doing that, your not Raising the center of gravity (your just changing the machines height), so it’s like running on a beam but your still the same height above orgin 0 as the platform shoes. Same result, less work, less time, and less risk.
It never occurred to me to raise X here and it didn’t occur to me that’s what he did till after our back n forth started, because that doesn’t sound like a good idea to me in the first place, therefore i didn’t even consider it as an option.
Same with if i wanted to increase clearance on my shapeoko3, i wouldn’t raise the x either, i would raise the y’s (pretty sure there was a bolt on option to do that in the case of my SO)
Don’t mind the clutter and disorganization, this was early stages of figuring it out. I think i took the pic to send to my dad to show him i (finally) got it in.
Ah okay. Thanks for the explanation. You are right, I remember I realized it when unpacking the X-50 axis of my Journeyman. This is also the reason why the foot of 50 mm rail is floating above ground in this image here:
In fact this is the correct solution, as making a higher foot block instead would have unnecessarily added to the overall X height when used as X axis.
PS: I see they are also mentioned in the Elite Manual page 19:
Yep. There is no “well maybe i don’t have to”… well you have to do something because like i said there’s negative clearance from the linear block to foot. I’m assuming the qcw accounts for that by having the foot mount higher than the top of the table or nothing in between
As for the manual. It’s got a lot of good information, but it’s not the Bible, refer to the “power button” in the other thread where when something was described/pictured, and therefore planned around how it was described/pictured but on delivery it wasn’t.
That’s the only instance i can think of because that threw such a big wrench in my plans and forced me to adjust plans on the fly. So that little thing turned out to be a bigger thing, and it’s actually an anecdote i use with my contractor when he comes to me with shop building changes. I planned my shop over the course of months (at least 4-5 and another 2-3 mo to find a contractor who could do it for the amount i have) and i don’t recall why i did every little thing i did, but i did it for a reason.
Where did you get the riser blocks? I am in the process of assembling my pro foreman and noticed the y rails balancing on the bearing blocks as well. I don’t see any riser blocks anywhere yet.
RowdyRoman
(Peter Romano (Official 3rd Party Accessories))
54
Hey I make riser blocks for the x rail. Here is the link
I can make a smaller size for the y rails if you guys need just email me at rowdyromanfire@gmail.com
Thanks for the reply brother, but I was specifically referring to the riser blocks needed for the Foreman (setup without qcw). During setup riser blocks under the y rails are required because the bearing blocks sit on the table otherwise with negative clearance for the feet.
