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If that is real CF, be careful of the dust and fibres...
Messes up electronics, gunks up bearings, wears down rails and will do a number on your lungs. Even a vac with HEPA filter can let some through... best option really is to cut it underwater if you can.
yeah its the real stuff as thats what I make, ive put the machine into an enclosure to contain the dist, making a better enclosure soon with a built in extraction system which should help
I used to do a bit of work with a company designing drones, we started prototyping CF frames in their lab using a vac boot and a hepa filter.
A few months after that, they had a hell of a time figuring out why their pcbs for flight controllers weren’t working as intended. Turns out the little carbon fibres had escaped and were wreaking havoc all over the lab.
They had a top to bottom clean and switched to cutting in a water tray so that the CF is submerged. No problems since.
Worth thinking about if you’re going to be doing a lot of it.
I will look into that, but im mainly going to be machining resin billets
Right chaps,
had a bit more time playing with the machine, ive got the motion speed set pretty low, feed rate set at 200. But it seems to be struggling with right angles and sharp points, it seems to add a small radius in these areas even though on the preview on the software there are clear points.
Any ideas?
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Google Mach3 Constant Velocity
Just had a quick read, ive now changed the motor speeds in my planet software from 500 to 200
seems to have sorted it i think, bloody slow now though lol
Sorry, missed that you was using Planet CNC software. Check this out http://forum.planet-cnc.com/viewtopic.php?f=5&t=1271 (no promises!)Quote:
Originally Posted by ravihotwok
managed to speed up the motors to 500, but changed the blend value to 0. Machining fine now, but a bit stop start on curves
not much of an update but ive begun sourcing parts for the new extraction system and also the new enclosure. Ive tidied up my tool bench and moved it from the back wall against my booth which has free'd up some more space. Also got a big screen dedicated to the cnc stuff
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I have made some small holes for the machine wires to drop neatly through the base of the enclosure so it is nice and neat, will be going to screwfix later to pick up some odds and sods for the extraction system. Im happy with the setup so far :-)
small update with the new setup, extraction system is all done, just sorting the power supply to the rear fans, I bought a transformer but its ac - ac instead of dc so need to get another one then that will be able to power the fans via a variable speed controller. small progress but starting to look the part
Hi there mate, good progress! Interesting extraction, are you expecting to blow down the duct? Might be more effective to suck through the duct? Anyway assuming your Fans are 12v then something like this will work fine:
https://www.ebay.co.uk/itm/DC-12V-10...-/253312012944
Cheers
Alex
Hello Alex,
thanks for the positive comments, I will be using the rear fans to just encourage the dust from the carbon fibre (as thats what I will mostly be machining) towards that duct, that duct is connected to a industrial extractor which is housed underneath the cnc machine, that cupboard underneath has been insulated with carpet to help reduce noise. I currently have a power control box I am making for the spindle, so was installing a transformer within that to keep everything neat, im just going to tap off the 240v incoming supply to the spindle power pack then run that through a transformer then to the fan controller. Will find a pic now
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here you can see the control power box im making, and also the adjustable fan controller, i bought a transformer this weekend but its ac not dc so buying another one which will hopefully sort it out. This is all a trial and I have no idea how it will perform, even if it doesn't do much the fans have led's on them so its disco time in the enclosure lol
Well ive finally got my cnc setup to a level I am happy with, had a lot of issues the past week. Firstly the pc fans I got of ebay were very cool with the led's but they were piss poor at moving air so I ended up ripping a few pc's apart to get some much more powerful fans.
To power the fans I got a laptop power pack and started stripping it back, I replaced the kettle plug with wires to be hard wired into the 240 supply to the spindle power pack.
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The output to the fans was controlled via a small toggle switch. I then secured the powerpack with hot glue onto the main power pack. I have got another fan to aid cooling within this box but I was very surprised as to how not hot the box gets so I dont think there is any need for an additional fan, will see how it goes. Attachment 24685 I also wired in a controller for the spindle
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here is how the box looks all back together, considering I did next to no electronics stuff before I started this thread im pretty happy with what ive done
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Also wired in a probe sensor for tool changes, works a treat. Makes me nervous though the the z axis goes down to meet it
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And here is how my setup has finished off with the enclosure fully panelled with perspec and a latch on the front door, only thing left is to swop the desktop pc with a docking station for my small laptop, just need to swop and register all the software im using, im pretty happy with the setup, would like to hear your thoughts on what you lot think. Its only a small workshop so I have tried to be as efficient with space as possible.
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Here is the first proper part machined. Not a bad 1st attempt :-)
https://www.youtube.com/watch?v=WBsq...rTrjOw&index=1