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CNC Router! (Drawing Ukulele Components)

Here's the place to talk about all your table saws, bandsaws, routers and dust extractors. In fact anything that makes noise and uses electrickery.

Re: CNC Router! (Now Bluetooth Controlled!)

Postby Malc2098 » 01 Jun 2022, 21:19

DaveL wrote:Hi Malc,

Here is my collet storage, I like having a lid to stop the dust collecting on it.Image



Nice! Can I see cog wheels in the background?
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Re: CNC Router! (Now Bluetooth Controlled!)

Postby DaveL » 01 Jun 2022, 21:32

Malc2098 wrote:Nice! Can I see cog wheels in the background?


Er yes, I have bought the plans for a wooden clock and have started cutting some of the parts. The cogs are quite easy, the work holding is the tricky bit, the little ones will be a challenge. The case is a big pocket watch which is going to need some careful planning when I get to it.
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Re: CNC Router! (Now Bluetooth Controlled!)

Postby Malc2098 » 01 Jun 2022, 22:08

DaveL wrote:
Malc2098 wrote:Nice! Can I see cog wheels in the background?


Er yes, I have bought the plans for a wooden clock and have started cutting some of the parts. The cogs are quite easy, the work holding is the tricky bit, the little ones will be a challenge. The case is a big pocket watch which is going to need some careful planning when I get to it.


Wow! Sounds exciting. I've used masking tape and CA glue for mine so far for work holding. I am told the trick is to really burnish the tape down to each surface before gluing. Mine don't appear to have moved at all.
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Re: CNC Router! (Ceiling Hoist - Proof Of Principle)

Postby Malc2098 » 03 Jul 2022, 18:06

Ceiling hoist fitted. It's one of those that can lift the rook box off your car. 100kg is it's SWL with the poly rope.

F2546BBC-8FA4-4262-924D-9F30A098975B.jpeg
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The pulleys are bolted through the larch rails which in turn are screwed with 120mm construction screws into three of the rafters through the OSB ceiling. The hoist spindle is sitting two of the joists as most of its load will be sideways and hopefully equal and opposite.

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The lump of sapele is proving proof of principle. Even though the manufacturers state that rope can take 100kgs, I have bought the necessary Stainless rope and fittings and have now got to fit the cnc to a base with a framework that will support it while being hoisted.
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Re: CNC Router! (Ceiling Hoist - Proof Of Principle)

Postby Robert » 03 Jul 2022, 22:26

No doubt it works and is safe but I'd want belt and braces before working underneath the suspended CNC. The reality looks scary to me.

Maybe a couple of safety chains with hooks and eyes that clip on once its up.

Not me under it so do carry on :)
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Re: CNC Router! (Ceiling Hoist - Proof Of Principle)

Postby Malc2098 » 04 Jul 2022, 09:57

Robert wrote:No doubt it works and is safe but I'd want belt and braces before working underneath the suspended CNC. The reality looks scary to me.

Maybe a couple of safety chains with hooks and eyes that clip on once its up.

Not me under it so do carry on :)


You're right, Robert, that hadn't escaped me, either.

First time it goes up, I will make sure I'm not alone in the workshop.

Then I will measure the lengths for the chains, bring it down, fix the hooks and eyes, then chain it up before going underneath.
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Re: CNC Router! (Ceiling Hoist -It works, so far!)

Postby Malc2098 » 21 Jul 2022, 17:06

An old 60's veneered flush door and some timber and it's got a stable base.

Stronger rope for the hoist, chain and turnbuckles for stowing, and it's up, and I've got my floorspace and benchspace back! :D

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Re: CNC Router! (Ceiling Hoist -It works, so far!)

Postby Andyp » 21 Jul 2022, 18:08

Glad it’s a success Malc. How does it work though? Is it on a a ratchet somewhere? What stops it slipping back down after you have pulled it up and before you have the chains in place?
I do not think therefore I do not am.

cheers
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Re: CNC Router! (Ceiling Hoist -It works, so far!)

Postby Malc2098 » 21 Jul 2022, 18:24

Andyp wrote:Glad it’s a success Malc. How does it work though? Is it on a a ratchet somewhere? What stops it slipping back down after you have pulled it up and before you have the chains in place?



Thanks, Andy. The gearbox has a mark on it which suggests to me it's a ratio of 7:1 (or maybe 1:7) so I think there is sufficient resistance within that to stop it whizzing back. Anyway, this is what it is.

https://www.thule.com/en-gb/cargo-carrier/car-top-carrier-accessories/thule-multilift-_-572004

They reckon it's good for 100kgs. As suggested by Bob9F earlier in this thread, I've screwed 100mm long 6mm threaded eyes into 6 roof rafters, 3 either side, and I've connected them by chains and turnbuckles to 6 eyes screwed into the wooden framework under the machine. Once all six are connected, I loosen the the hoist just enough to slacken it off tension,
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Re: CNC Router! (Ceiling Hoist -It works, so far!)

Postby 9fingers » 21 Jul 2022, 19:49

Proper job Malc!

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Re: CNC Router! (Ceiling Hoist -It works, so far!)

Postby Andyp » 22 Jul 2022, 07:23

Ahh I see now. Wasn’t paying attention earlier, or forgot :(
I do not think therefore I do not am.

cheers
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Re: CNC Router! (Ceiling Hoist -It works, so far!)

Postby Phil » 23 Jul 2022, 08:26

I missed this post :oops: :oops: :oops:

What a good solution. Nice work.
Really like that idea, could also work for a train layout although the study ceiling is not high enough :lol: :lol:
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Re: CNC Router! (Ceiling Hoist -It works, so far!)

Postby Malc2098 » 23 Jul 2022, 09:44

Cheers, Gents.

Next job make a proper spoil board, flatten it (tramming), then mark a grid on it and make holes for threaded inserts for work fixings.
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Re: CNC Router! (Spindle trammed, spoilboard levelled)

Postby Malc2098 » 31 Jul 2022, 16:22

The spindle has been trammed, I think that's how you say it, but in any case 90 degrees vertical to both the X and Y axes.

That then let me level the spoilboard with a 25mm surfacing bit, and because the spindle was perfectly vertical there's no lines between the cutter's overlaps on the board. It's perfectly level and flat.

Now that's been done, I've engraved the spoilboard with a 50mm grid.

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Last edited by Malc2098 on 31 Jul 2022, 16:37, edited 1 time in total.
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Re: CNC Router! (Spindle trimmed, spoilboard levelled)

Postby Dr.Al » 31 Jul 2022, 16:23

Nice
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Re: CNC Router! (Spindle trammed, spoilboard levelled)

Postby 9fingers » 31 Jul 2022, 16:54

Malc,

Lately I've been watching the prototype for your New Devonian CNC project.

https://youtu.be/Hnvze1jy0RM


and
https://youtu.be/BHy-AX4ZnNI


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Re: CNC Router! (Spindle trammed, spoilboard levelled)

Postby Malc2098 » 31 Jul 2022, 16:58

:lol:

I've been watching it, too. That's one stiff frame!!
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Re: CNC Router! (Drawing Ukulele Components)

Postby Malc2098 » 03 Aug 2022, 17:01

I'm getting the hang of my Cad/Cam software and nearly got the hang of video capture (but not quite ;) ) on my Windows 10 laptop.

This is a simulation of the CNC cutting various internal components of ukuleles I am making. I'm using Vectric VCarve Desktop software for the cad/cam drawing and toolpath creation. The top row, when joined together in 3s, will be for horn reinforcement inside the cutaway mitre joint. The middle row when joined together will make the tail block and the bottom row, the heel block. The holes are for locating dowels.

If only it was this quick in real time! :D


https://youtu.be/kYvK7TyN0KY
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Re: CNC Router! (Drawing Ukulele Components)

Postby meccarroll » 22 Jan 2023, 11:37

I have a CNC router project build coming along very very slowly, not even started to build the framework yet Malc. I have one ready built too so no rush needed on the build. I have looked through your post and think you managed to get to grips with the assemble and working very quickly. I was going to use GRBL control software originally but ended up buying MACH3 as I needed it for my ready built CNC. Building a CNC machine and learning all the software and hardware settings is like moving to a foreign country and having to learn a new language and traditions. I'm still in the process of ordering parts for my CNC build and may post on here when I get started on the build. Very nice post Malc.
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Re: CNC Router! (Drawing Ukulele Components)

Postby Malc2098 » 22 Jan 2023, 12:18

meccarroll wrote:I have a CNC router project build coming along very very slowly, not even started to build the framework yet Malc. I have one ready built too so no rush needed on the build. I have looked through your post and think you managed to get to grips with the assemble and working very quickly. I was going to use GRBL control software originally but ended up buying MACH3 as I needed it for my ready built CNC. Building a CNC machine and learning all the software and hardware settings is like moving to a foreign country and having to learn a new language and traditions. I'm still in the process of ordering parts for my CNC build and may post on here when I get started on the build. Very nice post Malc.



Thanks, McC.

I've got the sort of brain that can learn the stuff, eventually, but something always has to fall out to make space for it. :D

Do post your build on here. Let's encourage more to develop their woodworking using this sort of machinery. I'm chuffed with the help it's given me with my instrument builds.
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