#linuxcnc Logs

Jul 17 2021

#linuxcnc Calendar

01:07 AM Deejay: moin
04:13 AM Tom_L: morning
05:08 AM -!- #linuxcnc mode set to +v by ChanServ
05:08 AM JT-Cave: morning
05:09 AM XXCoder: heys
07:52 AM Tom_L: t-storms moving in, Hi 88
07:57 AM JT-Cave: same here
08:54 AM -!- #linuxcnc mode set to -q by jepler
08:54 AM jepler: I've turned off "quiet unregistered users", if there's any trouble turn it back on as a first step (& ban the source of trouble)
08:55 AM jepler: (if you're known to chanserv as a moderator of the channel, become an operator via chanserv then "/mode #linuxcnc +q $~a" )
08:56 AM jepler: also, a reminder: The forum will be down late rtoday (starting somewhere around 75 minutes from now) for OS upgrade
08:57 AM Tom_L: yay
09:09 AM JT-Cave: yay
09:21 AM Tom_L: lots of noise outside but little rain so far
10:59 AM jepler[m]: The forum upgrade is complete, let us know if you encounter problems.
12:44 PM JT-Shop: I have an eye pad I use with a drone but need to use map, it's not connected as a phone...
04:39 PM mrec: doesn't M6 Tn apply G43 automatically?
04:40 PM JT-Shop: no]
04:40 PM JT-Shop: http://linuxcnc.org/docs/2.8/html/gcode/m-code.html#mcode:m6
04:41 PM * JT-Shop wonders why anyone would assume that M6 was magical...
04:44 PM skunkworks: I think it is all magical
04:45 PM JT-Shop: lol
04:45 PM mrec: because I override M6 usually
04:45 PM JT-Shop: indeed it is magical
04:45 PM mrec: but this time I disabled the override, because I don't want to do dynamic tool offset measuring
04:46 PM JT-Shop: what do you mean override m6?
04:46 PM mrec: remap
04:46 PM JT-Shop: ah ok
04:46 PM * JT-Shop does play with remap
04:46 PM JT-Shop: doesn't
04:47 PM mrec: freecad is getting quite good with path generation
04:47 PM Tom_L: i used it while testing once
04:47 PM JT-Shop: 2D paths?
04:47 PM mrec: it required me to fix 5 issues to get my object work with it
04:47 PM JT-Shop: I gave up with remap before I started lol
04:47 PM skunkworks: mrec: I have not tried the cam in freecad yet...
04:47 PM mrec: 3D paths / 3 Axis
04:47 PM skunkworks: cool
04:48 PM JT-Shop: cool
04:48 PM Tom_L: i forgot what i was using it on now
04:48 PM Tom_L: probably spindle orient
04:48 PM mrec: it's changing a lot my few patches will also improve the handling
04:48 PM JT-Shop: nice
04:49 PM * JT-Shop wanders out to the other shop to make more wood chips
04:49 PM mrec: I make aluminium chips next week it's time to test tool steel
04:49 PM mrec: I wonder how far I can go with my DIY machine
04:49 PM mrec: got an SKD61 block here
04:50 PM skunkworks: lol - I feel all our machines are diy..
04:51 PM mrec: the machine base cost 690$
04:53 PM mrec: https://snipboard.io/ejNsai.jpg
04:53 PM mrec: I can't wait to see those walls gone
04:53 PM mrec: the path is generated but the machine is working on the other side now
04:53 PM mrec: a 16mm endmill will take care about it
05:00 PM roycroft: all my raised beds are gone now, and the blackberries removed
05:00 PM roycroft: i still have about 2 truckloads to remove and haul away that were growing outwith the garden, but the majority of the work is done
05:00 PM Tom_L: did you set off some C-4 in the hole to be sure?
05:01 PM roycroft: as i have said before, if i can mow, they will not grow
05:01 PM roycroft: and i now can mow that area
05:01 PM skunkworks: what are you getting rid of?
05:01 PM roycroft: blackberry brambles
05:02 PM skunkworks: ah
05:02 PM roycroft: they are an invasive species in my part of the world
05:02 PM roycroft: and very hard to control
05:02 PM skunkworks: we have raspberrys out front.. I have to fight them back ever so often..
05:02 PM roycroft: as are most invasive species
05:03 PM roycroft: my plan was to remove 1/4 of them on each of four successive fridays, since i'm taking fridays off for a while
05:03 PM roycroft: i started last week, and get well ahead of schedule yesterday, so i decided to push ahead and finish this section today, so i'm a couple weeks ahead of schedule
05:04 PM roycroft: perhaps next friday i'll use my vacation day to actually relax and do not much of anything
05:04 PM roycroft: or go on a hike
05:05 PM roycroft: if the part for my garage door opener arrives by thursday i'll probably end up working on that on friday, and then working on my mill/drill
05:11 PM JT-Shop: roycroft, is there any reason to not use 1/4" stickers on dry oak and by dry I mean 9-11% and 2' or less in length
05:11 PM JT-Shop: kinda short on space where I'm stacking the short pieces...
05:12 PM roycroft: i think it's always a good idea to sticker wood, and if it's that dry, 1/4" should be fine
05:12 PM JT-Shop: ok thanks
05:13 PM roycroft: i mean, if it's down to 6% moisture in an environment where you can hold it at 6%, and if it's surfaced at least s2s, i would probably not bother stickering
05:13 PM roycroft: but otherwise i would
05:17 PM JT-Shop: I keep the shops at <= 50% humidity
05:17 PM JT-Shop: I don't see any down to 6%
05:18 PM JT-Shop: S3s all of it
05:20 PM roycroft: the main reason i say s2s for not stickering is that the wood will be flat, and not need the stickers to support it
05:24 PM JT-Shop: ah
05:25 PM roycroft: stickers can even out wobbles
05:25 PM JT-Shop: I figured out real fast that if the top is not flat you can't stack very high in a single column
05:26 PM Tom_L: jenga
05:27 PM Tom_L: how high can you go?
05:27 PM JT-Shop: 12'
05:27 PM roycroft: you can make some sticker wedges
05:28 PM JT-Shop: easier to just run them through the planer and stack by thickness
05:29 PM roycroft: i'm getting ready to make some sample lamp frames, for working out dimensions and the like
05:29 PM JT-Shop: cool
05:29 PM roycroft: and i've been looking around the shop, and it seems best to make them out of ash
05:30 PM roycroft: which i would normally not think of as a good wood to use for prototypes - it's too nice for that - but i have a lot of it left over from my workbench build last summer that's just the right thickness
05:31 PM roycroft: at the very least, i'll have less short pieces of wood to trip over
05:31 PM JavaBean: and that is how people end up having "nice tools/equiptment" in their workshops... leftovers
05:31 PM JT-Shop: I hear that
05:32 PM roycroft: the drawer pulls on my bench sander cabinet are just sick for a shop fixture, but i wanted to work out the design, so i made them
05:33 PM roycroft: and they're not nice enough that i'd feel ok putting them on a piece of furniture, but i know what to do to make them better when it comes to that
05:33 PM roycroft: but yeah, that's one reason people make nice stuff for their shop - prototyping ideas and using up scraps
05:34 PM roycroft: the other big reason, for folks who have customers visit the shop, is that nice shop fixtures are some of the best calling cards
05:34 PM JavaBean: must be nice to have a "shop" clean enough for visitors
05:35 PM roycroft: i'd like to be able to tell you how it feels
05:35 PM CloudEvil: JavaBean: 'I know where the shards of glass are. It's fine.
05:35 PM roycroft: perhaps some day
05:35 PM JavaBean: not one of my "work areas" are visitor/landlord safe... for which i am constantly ribbed
05:36 PM roycroft: both my shops are slowly getting more organized and tidier, as i build custom fixtures for things
05:36 PM CloudEvil: :)
05:36 PM JT-Shop: I'm making stickers from oak bits that are too small or warped to be good for anything else
05:36 PM roycroft: but they're still somewhat chaotic
05:37 PM roycroft: matt cremona makes his stickers out of cherry
05:38 PM roycroft: i make mine out of whatever's laying around
05:38 PM roycroft: and often times it's strips of 12mm baltic birch plywood
05:39 PM JT-Shop: aye mine are a mixture of what ever wood it useless for anything but stickers
05:39 PM roycroft: remember: sticker wood is the same size as pens
05:39 PM roycroft: so what you see as otherwise worthless scraps others may see as valuable turning wood
05:40 PM CloudEvil: Gotta be damn nice wood to be worth $1/pen.
05:40 PM JavaBean: those are some cheap pens
05:40 PM CloudEvil: As wood, pre-pen.
05:41 PM CloudEvil: But the argument gets considerably worse for $5/blank
05:41 PM CloudEvil: Today I got in the post some titanium rod I intend eventually to pen.
05:42 PM CloudEvil: And a brass space-pen that I need to solder a loop onto
05:44 PM * JT-Shop doesn't have much desire to make a pen... that seems something for working folks to use
05:45 PM XXCoder: someone making pens?
05:45 PM XXCoder: missed some details
05:45 PM JavaBean: you could use the "pen body" to make a marking tool... just pretty
05:46 PM JavaBean: instead of an "ink well"/"ink tube" it could be a chunk of carbide that you extended... with the clicker part it could be pocketable
05:50 PM roycroft: i've never been interested in pen making
05:51 PM roycroft: but i can appreciate a nice pen
05:51 PM CloudEvil: I kinda want to do a pressurised ink pen, but not spacepen.
05:55 PM XXCoder: jhow do you do nirogen pressure tank for pen?
05:55 PM roycroft: there's a really easy way to draw stuff in space
05:55 PM roycroft: use a pencil
05:55 PM XXCoder: flammable pen sure
05:55 PM CloudEvil: XXCoder: Nitrogen is not actually expensive.
05:55 PM XXCoder: russia bought those space pens
05:56 PM roycroft: the graphite ones?
05:56 PM XXCoder: so yeah the acental story didnt happen
05:56 PM CloudEvil: More seriously, sealed end, ...
05:56 PM XXCoder: yeah its flammable in 100% oxygen
05:56 PM CloudEvil: Coloured pencil was quite available at the time andcheap.
05:57 PM XXCoder: https://www.scientificamerican.com/article/fact-or-fiction-nasa-spen/
05:57 PM XXCoder: what actually happened
05:57 PM XXCoder: "Pencils may not have been the best choice anyway. The tips flaked and broke off, drifting in microgravity where they could potentially harm an astronaut or equipment. And pencils are flammable--a quality NASA wanted to avoid in onboard objects after the Apollo 1 fire."
05:59 PM XXCoder: "They both paid $2.39 per pen instead of $3.98."
05:59 PM XXCoder: thats very cheap compared to $139 mechinical pencils they was using
06:32 PM Tom_L: after stickers they become kindling
06:36 PM CloudEvil: I cut them up to form ministickers to stack my stickers.
06:38 PM Tom_L: https://twitter.com/RueNahcMohr/status/1416538554319003649
06:38 PM Tom_L: :)
06:39 PM Tom_L: CloudEvil, toothpicks
06:56 PM roycroft: i admit to using some of my smaller pieces of wood as kindling occasionally
06:57 PM roycroft: but i also find uses for really small bits of wood all the time
06:57 PM roycroft: if i had more room to store it i'd probably hoarde all the scraps
06:57 PM roycroft: i'm really good at getting rid of plywood and mdf scraps, though
06:59 PM roycroft: not so good at it lately, though, since my garage door opener is not working properly
06:59 PM roycroft: i usually take it right out to the trash as it comes off the tablesaw
07:09 PM Kevin`_ is now known as Kevin`