X-Axis Lead screw size?

Does anyone known the PRO X-axis lead screw size and pitch? I broke another one, I’m just going to pick up a couple sticks at the local McMaster Carr to have in hand.

What is causing breakage? Been using my pro a lot and haven’t any troubles with breakage.

They always break at the part of the lead screw that is turned down to fit the coupler. Waiting to hear an answer back from langmuir if this is common or not. I may just use my table a lot. I pretty much cut 16ga 99% of the time, the table runs ar a consistent 220ipm m-f for a out 4 hours a day so it gets used for way more than a hobby machine.

I think you already figured this out on FB, but for anyone else, it a 1/2" 10TPI - 5 start lead screw.

Yep found on FB, good to go!

I have the cross fire pro bought in July 2023 and my lead screw has broken 4 times in less than a year as well I use my table 247 these tables are definitely hobby there breaking at the coupler on the x lead screw

Something is wrong. I have used my table 8-10 hours a day, 5 days a week, for the last 4 years and have never had that happen. Is your table in an area people are leaning on the screw? Is it the same one all the time?
I find it hard to believe that the weak stepper motors are breaking it. Maybe something is miss aligned and working on the weak spot of the screw.

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I’m only one in the shop no one touches or leans on it the gantry that holds the torch moves freely every time I replace them table cuts awesome until they break every couple months usually when I have a ton of orders as well yes same exact spot all four times still waiting for the new one this time had to actually pay for it because my warranty ended in July

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I can’t help but wonder if the bearing block on the end is swapped with one from the Y axis.

I would remove the screws holding the bearing block and run the gantry all the way to the motor, and see if the block then lines up correct.

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@metalfabb
I am going to make a suggestion for you to check something…it may take some time…but the results could save you hours of problems later…

pull the drive screws off the table like when you change them after breaking…but pull them ALL off at the same time…

now roll your gantry systems around…they should roll like butter on a hot day…smooth…a push of your little finger and the should glide like a new skateboard on a glass table…

if you find them stiff in any way you need to loosen off the bearings a bit…the whole table gantry system should be smooth but not wobble loose…

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