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.

Quote:

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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.

Quote:

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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.

I'm going to make a frame from 2*1 on ply wood so the router sits on the frame, then drill a hole in the ply for the vac bed. I can very easily drop the router onto anti vibration mounts or sit it on 20cm thick rubber bump stops.

Is there any point?

My wiring is dodgy on the spindle, luckily I didn't damage it!

I need to resolder properly but I decided today I was in disaster mode and anything I do will break things even more lol. Asked my electrician mate to come help me sort it.

Tripping out RCD so it's earth related.

But we did do a test cut ;)Attachment 23438

Quote:

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Originally Posted by Desertboy

My wiring is dodgy on the spindle, luckily I didn't damage it!

I need to resolder properly but I decided today I was in disaster mode and anything I do will break things even more lol. Asked my electrician mate to come help me sort it.

Tripping out RCD so it's earth related.

But we did do a test cut ;)Attachment 23438

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Congrats, the first movement is always the sweetest.

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Originally Posted by Chaz

Congrats, the first movement is always the sweetest.

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The first movements I had a dead spot on my router where the ballscrew was catching but quickly traced to my motor mounts. Under one of the mounts on one side was a washer but not the other. Removed the washer and all was good ;) Struggling to fit my limit switches lol, broke 3 cobalt drill bits so far bloody M3's far too flimsy.

So...the first cut is the sweetest!

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Originally Posted by Nickhofen

So...the first cut is the sweetest!

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until the power goes out lol, since it tripped the rcd (doing this cut) I bet it's the earth connection I obviously need to redo it properly.

Felt brave so I fixed it :) was a dodgy earth

Nice, I feel your relief...hmmm that didn't sound right!

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Originally Posted by Nickhofen

Nice, I feel your relief...hmmm that didn't sound right!

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You saucy swedes lol.

I'm going to make this first (As an engraving) to put on the wall next to the machine as no one at work thought I could build this so a nice little F you for them to see daily ;)

Attachment 23455

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Originally Posted by Desertboy

You saucy swedes lol.

I'm going to make this first (As an engraving) to put on the wall next to the machine as no one at work thought I could build this so a nice little F you for them to see daily ;)

Attachment 23455

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Hahaha :D

Nick is from greece!

Love the sign

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Originally Posted by Nr1madman

Hahaha :D

Nick is from greece!

Love the sign

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Ah a greecy greek, a batty brit and a saucy swede at least there's no filthy french ;)

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Originally Posted by Desertboy

Ah a greecy greek, a batty brit and a saucy swede at least there's no filthy french ;)

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Lol!
The sign Rocks, the F community approves,haha!!!

I made a simple clamp today, whatever I made it from came from Krypton lol.

We broke 4 drill bits (With cooling, low speed, bosch cobalts) 3 of them brand new and tried drill press, dewalt and snap on cordless to drill the hole.

We made it about 1mm so far lol, will get photo tomorrow but when I find the kryptonite I need to drill the 2 holes I will have a clamp solution but am going to do a vac bed solution as well.

https://www.youtube.com/watch?v=6Qb5sx65kRE

Quote:

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Originally Posted by Desertboy

I made a simple clamp today, whatever I made it from came from Krypton lol.

We broke 4 drill bits (With cooling, low speed, bosch cobalts) 3 of them brand new and tried drill press, dewalt and snap on cordless to drill the hole.

We made it about 1mm so far lol, will get photo tomorrow but when I find the kryptonite I need to drill the 2 holes I will have a clamp solution but am going to do a vac bed solution as well.

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Wtf! :D

Expensive clamp!

I say kill it.
Kill it with fire

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Originally Posted by Nr1madman

Wtf! :D

Expensive clamp!

I say kill it.
Kill it with fire

Skickat från min SM-G955F via Tapatalk

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I'm going to ask my engineer mate to drill it he won't charge a lot (Like £5 for both holes) and probably know what it's made of.

I'm going to make a vac bed so the clamps will very rarely be used but it's better to have a clamp and not need it than need a clamp and not have it ;)

Started playing with cam ;)
Attachment 23490

But unsure the about anything :) I think it's a case of having a play and lot of scrap wood lol.

Do you like the cam in fusion? Does it feel intuitive?

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Quote:

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Originally Posted by Nr1madman

Do you like the cam in fusion? Does it feel intuitive?

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Not tried generating code and running in linuxcnc yet, I don't have the homing switches on yet I did fit one set badly lol so I've decided to put roller type sideways on as someone recommended originally lol. I have the switches just keep snapping drill bits need to get a 3.2mm for the switches.

I feel confused but for most of the build I've been confused it's a feeling I'm getting used to lol. I hadn't realised when i started the build quite how much you're going to have to learn especially Fusion although I'm so glad I did now.

I have just purchased the mock exams for fusion 360 certification (Going to get certified next year just for kicks) you would laugh if you saw how easy they were lol I'm going to be embarrassed if I fail the certification lol but I'd also be surprised.

Linuxcnc also has some great plugins for generating gcode, image2gcode (which is built in) is something I'll have to check out.

Quote:

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Originally Posted by Desertboy

Not tried generating code and running in linuxcnc yet, I don't have the homing switches on yet I did fit one set badly lol so I've decided to put roller type sideways on as someone recommended originally lol. I have the switches just keep snapping drill bits need to get a 3.2mm for the switches.

I feel confused but for most of the build I've been confused it's a feeling I'm getting used to lol. I hadn't realised when i started the build quite how much you're going to have to learn especially Fusion although I'm so glad I did now.

I have just purchased the mock exams for fusion 360 certification (Going to get certified next year just for kicks) you would laugh if you saw how easy they were lol I'm going to be embarrassed if I fail the certification lol but I'd also be surprised.

Linuxcnc also has some great plugins for generating gcode, image2gcode (which is built in) is something I'll have to check out.

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I know the confused feeling :D
There are 200 sidesteps to complete an otherwise straight forward cnc build haha.

The cam bit is something I dont look forward to.
I know its gonna be a mental battle with lots of rage for my part while the software will be laughing at me ;)

For CAD i actually like solidworks better.. but Im not really good at it yet hehe.. my laptop is not powerful enough to run it without quirks and protest! Will have to invest ;)

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Quote:

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Originally Posted by Nr1madman

I know the confused feeling :D
There are 200 sidesteps to complete an otherwise straight forward cnc build haha.

The cam bit is something I dont look forward to.
I know its gonna be a mental battle with lots of rage for my part while the software will be laughing at me ;)

For CAD i actually like solidworks better.. but Im not really good at it yet hehe.. my laptop is not powerful enough to run it without quirks and protest! Will have to invest ;)

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What are you intending to control your machine with?

I went with linuxcnc over mach 3 because
1. I believe in open source
2. More real time kernal than windows which is important when using a PP BOB. If you're using the BOB I have with Mach 3 you need to run windows 7 or below 32 bit edition. Linuxcnc still needs to be 32 bit edition for PP BOB's.
3. It's FREE!!!

I worked the assumption that linuxcnc will be more difficult to setup but once working properly neither would have an advantage over the other for a simple router like mine.

Quote:

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Originally Posted by Desertboy

What are you intending to control your machine with?

I went with linuxcnc over mach 3 because
1. I believe in open source
2. More real time kernal than windows which is important when using a PP BOB. If you're using the BOB I have with Mach 3 you need to run windows 7 or below 32 bit edition. Linuxcnc still needs to be 32 bit edition for PP BOB's.
3. It's FREE!!!

I worked the assumption that linuxcnc will be more difficult to setup but once working properly neither would have an advantage over the other for a simple router like mine.

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You make good points!
Im gonna use uccnc..
Bought a second hand uc300 controller and got the uccnc license included.
Read alot of positive comments about uccnc so it feels good.
If I was gonna use PP like you I would probably run dual boot win with mach3 and linuxcnc ;)
Have a feeling I would be switching back and forwards trying to decide whats better :D

Oh and about your limitswitches, hope you get them mounted in a good manner :D
Im still planning where mine should be.
I want travelling switches with static targets.. kind of hard thinking about where they should be on each axis without limiting travel or crashing into anything haha



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Linuxcnc still needs to be 32 bit edition for PP BOB's.

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Not so sure about that:whistle:

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Originally Posted by Clive S

Not so sure about that:whistle:

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It is very possible I made it up lol but swear I read that somewhere. I know they broke the PP in 64 bit windows.

Ordered a 6mm compression bit for ply ;)

https://www.ebay.co.uk/itm/6mm-x22-C...72.m2749.l2649

Do you have a ballnose also ,for the finishing?

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Originally Posted by Nickhofen

Do you have a ballnose also ,for the finishing?

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I don't have many bits yet, I have a cheap router set from Aldi lol and I ordered from China (I have them now) some 2 flute carbide endmills in 6mm and 8mm, selection of ballnose cutters and a engraving set.

Compression bits are for cutting laminates like ply they don't need (I think) ballnose cutters for finishing if just cutting if you're 3d milling ply maybe different.

I get it,I thought you were going to use it to curve the F label you design,to do the rough cut !

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Originally Posted by Nickhofen

I get it,I thought you were going to use it to curve the F label you design,to do the rough cut !

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I've designed a few things I want to make I'm going to prototype in marine ply first (£80 a sheet for the best stuff) before I move on to real wood. Got a price for metre cubed of walnut almost had a baby lol.

At the moment also thinking about varnish's and Polyurethane ;)

I'm going to get a 1/2" cutter for roughing with wood

https://www.screwfix.com/p/erbauer-s...FSUS0wodlRwBBg

Glad I'm not into aluminium although seeing the quote others are getting for plates you start to wonder if you should get into aluminium lol.

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Originally Posted by Desertboy

It is very possible I made it up lol but swear I read that somewhere. I know they broke the PP in 64 bit windows.

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Nobody 'broke' the PP in 64 bit. Microsoft just increased security.
Mach is essentially a virus that hooks onto the main windows core, which prior to 64bit or Win8, was unencrypted.
With the advent of 64bit, or Win8, Microsoft moved to a protected/encrypted core, so although Art did say it would be possible to hack it (I think he actually did try..) and still have the PP work, MS changed the encryption regularly with updates, so what might work today, could quite quickly be killed by an update.
He came to the conclusion that it just wasn't worth the hassle. Even though it was possible, it would be a minefield to install, get working reliably, and to stay working. External controllers are far cheaper than they used to be, eliminate a whole host of problems, and should give far better performance.

Linux on the other hand, the core is open source, so you can do pretty much whatever you want.

Hmm Interesting on the 64bit windows ;)

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Originally Posted by m_c

Linux on the other hand, the core is open source, so you can do pretty much whatever you want.

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Having access to the source for the kernel helps ;) There's a few real time kernels which you can use with linuxcnc not sure if any have an advantage or difference over the stock kernel included with the livecd but I do love the fact that there are several options. I remember reading the linuxcnc real time kernels are again hacks and not true real time kernels but good enough for the machines to work ok. Real timish was the term I saw being used which I love ;)

My obvious upgrade path is Mesa 7i73 which I'm eyeing up ;) I think I need to invest in a decent table saw (Or a vertical panel saw like in B&Q) first so I can process the wood into usable pieces.

Since I'm only working wood/mdf/ply can I leave the spindle at 24000rpm/400hz all the time for now? I haven't connected the vfd to the BOB yet although I put the 12v power to the BOB in place so easy connect.