New build with recycled parts on a ridiculous budget 120cm*60cm work area

If using R&P, yes spring load the pinion against the rack - this takes out 99% of the backlash, but also fit a stop to the motor/plate to stop it being able to disengage or jump the rack if overloaded, a jumping pinion will chew both rack and pinion instantly meaning an expensive fix, far better to stall the stepper.

I use R&P on my plasma table and its been flawless so far.

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Originally Posted by Clive S

Dave

For twin screws you need Linuxcnc V 2.8 master if you want independent homing. I you want to reverse on of the motors then you can just swap the phases around on the motor.

What version are you using?

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It's not Dave it's me ;) I'm using the beta I've enabled the master repositories so should be bang up to date, it's does read 2.8 something on boot.

I was hoping it was just an option in the ini to invert them you can do it from the stepconf but that's no good for setting up dual ballscrews.

I guess swap the wires around will be the easiest solution.

My brother asked me what I want for Xmas was going to ask for a 3nm nema 23 which I'll fit to the gantry and swap the 2nm from the gantry to the Z.

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Originally Posted by Davek0974

If using R&P, yes spring load the pinion against the rack - this takes out 99% of the backlash, but also fit a stop to the motor/plate to stop it being able to disengage or jump the rack if overloaded, a jumping pinion will chew both rack and pinion instantly meaning an expensive fix, far better to stall the stepper.

I use R&P on my plasma table and its been flawless so far.

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I was thinking a dual pinion setup to remove the backlash, if I build this I'll put servos on it.

When the time is right I should come down and give you fusion 360 lessons and you can help me with my R&P ;)

Ordered myself a new phone

https://www.banggood.com/Elephone-S8...r_warehouse=HK

Cheap Chinese of course have better things to spend money on.

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It's not Dave it's me ;) I'm using the beta I've enabled the master repositories so should be bang up to date, it's does read 2.8 something on boot.

I was hoping it was just an option in the ini to invert them you can do it from the stepconf but that's no good for setting up dual ballscrews.

I guess swap the wires around will be the easiest solution.

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Sorry Me:confusion: Can you post your ini and hal files and I will take a look, you can invert them in hal. I am In Spain again but back on Tuesday but I might be able to do it from here.

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Originally Posted by Clive S

Sorry Me:confusion: Can you post your ini and hal files and I will take a look, you can invert them in hal. I am In Spain again but back on Tuesday but I might be able to do it from here.

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Enjoy the sangria & sunshine ;)

Got my MDF bed on now I need to make it a vac bed ;)

I used an 18mm sheet

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Originally Posted by Desertboy

Got my MDF bed on now I need to make it a vac bed ;)

I used an 18mm sheet

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Pics or it didnt happen :D

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Attachment 23431

Looks neat ;)

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Originally Posted by Nr1madman

Looks neat ;)

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It just fits and I mean just lol I had to tap it in the corners which is the fit I wanted was stressed about this cut as I had to outsource the cut and I knew it would be a bastard luckily I got a friendly a wood guy to help me out.

As soon as you say i want 135.1cm *100cm people look at you funny lol.