Hi,
My little box of LR2 goodies arrived yesterday. I’m still printing out the PLA parts (which is taking forever…). So here at work today, I thought I’d chase up some 25.4mm SS tube. Easy enough to find - but while calculating lengths I noticed that there are no SS tubes for the long side? Just wheels? What keeps everything square? I seem to have completely misunderstood how the LR2 works…
Regards,
Duncan
Hey Duncan, I don’t have a Lowrider but you only need the stainless steel for the Y axis - width (2) and for the Z axis - up and down travel (4). The X axis (length) rides on the table edges so the table needs to be built accurately. You may want to go through all of the assembly instructions at the V1 website again to confirm the table dimensions (there is a link to give the actual lengths of the different parts based on your desired work space). It seems like most of the table builds are a torsion box design to eliminate any possible table flex for improved accuracy.
Fascinating. Thanks for confirming my suspicions. So I’ll order the steel tubes and get on with it…
Just so we later are not confuse Z axis (up and down ) X axis ( carige riding on gate left right) Y axis ( gate rading on table)
You can make either X or Y. The X on my machine is the plate moving on the pipes and Y is the wheels on the table. I think the original instructions are Y on the plate and pipes.
I think moust comon cnc with moving geantry has X as a gentry and table length as Y.
Sorry about mixing up the X and Y axis. This may explain why all my projects come out sideways 
I think most common CNC has X to the right and Y towards the back. It really can be either, as long as it follows the right hand rule.
Thanks for the help so far guys, but now I have another question:
According to the online calculator, to be able to cut a full 2440mm x 1220mm sheet, I need a table of 2821mm x 1423mm So the question is - how do I get a table of these dimensions? Join multiple sheets together? Seems weird…
Duncan
Yes. Or a cool way to do it is build a frame and just fasten a sheet in the cutzone, for easy clamping.
Or something like this? That would seem to be a full sheet with “extensions” for the wheels to ride on… 100mm C-channel?
Yes but I am not a fan of the unistrut method, it adds possible complications.
Sorry - Unistrut? What’s that? Are you talking about the C-Channel?
Yea, that’s one of its trade names. Unistrut, super strut, depending on manufacturers. Unistrut was the original I believe.
…another quick question,
Is it necessary to have a continuous side? I plan to build my torsion table in three parts (mainly due to the availability of materials). I will then bond on a single 2.8m strip of dressed pine on the top on which the wheels can run.
So the question is: is there a requirement for another 2.8m strip of dressed pine to be affixed vertically to the sides? Does the carriage need to run against it, or does it ride proud of the sides? I have seen some tables which appear to be only an inch or so thick and that’s it…
