I am using the OPENBULIDS 1510. 6mm bit with cutting depth of 10mm. All belts are tight. The first pass cuts in a different position as image shows. i'm using Easel software. Can anyone help?
Hi Peter I have solved the problem. There was a loose screw connecting the router assembly to the gantry and have increased the cutting depth to 2.5mm as the total depth is 10mm. Reduces project time and the finished article I am over the moon with. I am so pleased with the 1510 and I know that I will be ordering another 5 before Christmas if I can get a good price direct. Thanks for your help.
The problem has returned. Everything is secure and tight. Can't understand why. I have changed the substrate. I'm using 12mm MDF with a 3mm aluminium composite stuck on top. Another question: The manufacturer of the bit says that the router speed should be 7,000RPM. The dDeWalt 611 supplied if set on number 1 which is the slowesr speed is nearly double that. Will this affect the cut?
If the issue is back, some other screw maybe rattled loose. Same thing as last, go over the mechanics, and just tighten everything
What about the router speed? The bit manufacturer stipulates 7,000 RPM and the DeWalt 611 starts at around 12,000?
Post some pictures of one of the new double cuts etc lets see if we can spot any clues. Also post the output of your Grbl settings (Send "$$" and copy paste from the Serial Console) I am in the Karoo, Beaufort West but lived in Potchefstroom, Pretoria, Johannesburg, Durban, Ballito all over, over the years
I lived in JHB in the late 80's but have visited the Cape, Durban, Bloem many times. Stayed at the 4 seasons Hotel in Durban so many times I can't remember but my fondest memories will always be Kruger Brings back many great memories
Will make another cut in the morning and then post. Thanks for your help Ever done any fishing for Tiger at Kariba? Apologise for the spelling.
Hi Peter As you probably realise I am a complete novice however I love it!! I am uploading some images. I am using Easel which I find so easy to use. Can you explain (Send "$$" and copy and paste from the Serial Console please? The edges are also very fluffy. On this cut I'm using down cutting router bit. Although I am getting frustrated I just love the possibilities. Thanks again for your help.
Sorry but the images don't show. I will try again. In the images I have used a file on the edges as they are all very rough.
Hi Peter I have done as you asked however they wouldn't copy and paste so I have had to save them as a document. I haven't looked at the control panel since I downloaded it. I jog the machine and set the job via Easel. Is this correct? Please find below. I await your reply.
$110 and $111 is quite too high (motors will stall out during G0 moves) - set to 5000 Try with $120-22 set to 100 as well, too fast acceleration can easily skip a tooth.
Thanks Peter As you are aware I am a complete novice. Could you kindly give me step by step instructions how to do this please? And I mean step by step. Danke
Absolutely OpenBuilds control > grbl settings tab > change the values as per my previous post. Also, to understand what that does: Step 1) head over to github.com/gnea/grbl/wiki Step 2) Read all of the pages from the link on the right Even pages like Interfacing which may sound like you have no business knowing those things, contain valuable info (like why some errors and alarms happen) - so do read all of it. Its a goldmine. And theres almost nothing i know that didnt come from there in the first place. The Grbl wiki really is worth a read. Configuration, FAQ, etc are great pages too And then of course we cant help with Easel. But our software has basic documentation at docs.openbuilds.com and we have a chock full youtube channel
Hi Peter This may sound stupid however I thought that the speeds etc were set through Easel or any other software?
I have been setting the feed and plunge rate going by the chart supplied by the router bit manufacturer.
No, G1/2/3 cut moves have Feedrate (from GCode) G0 seek/rapid moves move at what is set in Grbl Settings. That is a Gcode standard (one exception: some 3D printing firmwares violated that standard some years ago by also accepting F's for G0s but that is wrong. Refer G Codes) Do read that Grbl wiki, it is explained in there: Grbl Wiki > Configuration > $110-112 direct link: (click here - > gnea/grbl) Says right in the last paragraph For you own sake, go have a read through it all. Its just for your benefit... G0 moves are the moves between cuts. Explains why the cut looks good but it looses position between subsequent cuts
Does that manufacturer know you have an extrusion based machine and have their numbers based in the hobby grade machine world? Or is their numbers based on the assumptions that its a big heavy cast iron machine with no deflection. If not those settings will also be a tad aggressive, especially considering the 1510 has the longest axes. Longer the axis. More the leverage for deflection. See How to calculate V-Slot® deflection for more on that
Error says you accidentally emptied the $10 field. Maybe a misclick or miskeyboard. Just hit refresh grbl settings, then try again. Check that $10 has a value - again, refer to the Wiki (seeing a pattern yet lol) : gnea/grbl (default is $10=1)
What would us novices do without someone like you? Very grateful. So I can get closer to solving the problem what plunge rate and fee speed should I be using for MDF 12mm with a 3mm Aluminium Composite stuck on top bearing in mind that the 2 sheets of aluminium are 0.2mm thick each?
(; they would read the Grbl wiki, honestly, that's all I know more than a novice No idea! But a) a 1510 is not an aluminum cutting machine - might have to look at (and you'll have to do the googling/youtubing thing yourself here) into Trichoidal milling - deeper cut to tackle the alu with the internal layer at the same time, maybe to it in like 2 Trochoidal passes (top layer of 0.2mm alu + 1.5mm of the plastic inside, and then another pass for the remaining half of the plastic and bottom alu skin. (Fusion360 Adaptive toolpaths = trochoidal) b) Can't really give you numbers, because the endmill diameter, number of flutes, etc all come into play - but you can quickly hear and see the symptoms of a bad cutting recipe - Make chips, not dust - Listen to bogging down, chattering, or rubbing - signs of incorrect feedrates - sometimes you might think slower feedrate is needed, when in fact faster is needed, use the Feed override slider to see what it should do to stop whatever bad thing it is doing - moving too slow causes cutters to overheat and rub against the material instead of cutting. Go fast enough to make chips as chips removes heat from the cut
I find that when I am cutting into MDF dust is produced and when cutting into aluminium chips are produced. Is this normal please?
