This video:

Chat:
Al:
Al:
Al:

Index:
00:00 Al: Gives progress update on his lawn tractor controller.
Mention of remote login.
Disk imaging.
04:30 Al: Has his GPS board installed.
05:40 Discussion of udev rules.
13:50 GPS and NavSat driver.
15:45 Jeff: Quick review of the pieces for a a new small robot.
16:20 Jeff: Some thoughts on reducing the size. And methods of fabrication.
21:20 Jeff: Talk about making the front end match the width of the back end.
Discussion of bolt sizes.
24:50 Talk about different ball joints from Amazon.
26:00 Talk about cutting threads.
28:10 Pros and cons of metric vs. SAE hardware.
31:35 Prices at hardware stores vs. Menard’s vs. Fleet Farm.
More random discussions and complaints…

Lawn Tractor Automation YouTube page:

Index for Lawn Tractor Automation group:
http://sampson-jeff.com/RosAgriculture/LawnTractorMeetingNotes.txt

Index for the original ROS Agriculture group (~250 videos):
http://sampson-jeff.com/RosAgriculture/readme.txt
http://sampson-jeff.com/RosAgriculture/ros-agriculture-youtube20211026.txt

Foreign [Music] I can go first or you can go first it Doesn't really matter well you may as Well go first since you got your screen Up Uh what This blue means you know generally done And this 12 13 and 15 are sort of the Next steps for me Um Just so I feel tested the throttle and Steering I've installed a USB hub on the Tractor to plug in some different Components physically I've installed the GPS Um the antenna is at the moment sort of Temporarily and installed and by that I Mean I plugged it in inside the garage and Then I've run a long cable outside the Garage so it gets a good GPS signal Um And I need to test that it's Publishing data Um To do that I had to get Ross installed On the tractor the laptop that I had Just a couple of weeks ago it suggested I install an SSD which I did and Although I could have Probably fought with it and copied over Everything from the existing laptop I Just sort of saved all that data and

Moved it over and decided if I needed I'll pull it over and then I installed a New New version on an SSD Uh Got some instructions out in Google land Uh You know I've done this a number of Times but Things get tweaked a little bit every Time Uh uh went with Ubuntu 20 which means Noetic Uh Installing this crony for Network time Protocols seemed to be an issue at one Time still have to fix the gpg key Uh I'm using vs code Or Visual Studio code so I install that Uh Port speed That BNC viewer to let me to remote in A snap seemed to be messed up so I had To Do a little Hickory jiggery to get snap To work Went ahead and installed Sublime To have another editor as well And then I finally get down to Installing Ross with those commands There based on Those settings And then

Printing those environmental settings You get that and create the workspace Blah blah blah not to bore you So anyway Um Can you post the link to chat for that Yeah I don't know if if everybody can Access the that Google drive or not but True That's not a Google Drive it's a Google Document I I don't use any of that stuff so I Don't know how that works Um Yes I can if I can get back to the there It is Not sure if that folder is shared or not Um so if it's not let me know Foreign And then there was some conversation a Couple of weeks ago about Making uh Image of it and Clonezilla is What I use to make a clone of the disc I also installed cheese just to in case I need anything that video wise that it Might be able to help with but That was that After that Um You know I had the GPS board installed And this you USB line goes over to the USB hub these potentiometers are there Because

I want to physically be able to adjust The p i and D of the steering Um At least for a little bit longer Physically on the the tractor I'm not Sure that I've got the steering as Tight as they can and I don't really Have visual I'm going to get to a point Where I can monitor Some stuff with plot juggler Um Because I really don't I haven't figured Out how to visualize Data and plot juggler will let me do That if I'm feeding stuff in Via Ross so Um I want to still continue to tweak the um Pind of the steering steering Instructions Or steering an algorithm So that's where I'm at I'm I have a Little trouble I don't know if I have The documentation here or not handy on The udev rules I was fighting with You Dev rules on that USB hub Um I know I've got it I thought I had it But I don't know why it's coming up Um So I know that the The GPS as an example Is Well let's see if I make sure it's been

A week or so since I looked at this Connects GTO board up so I've got two Things to start off with to get UDF Reels one is the TT Geo board and one is The GPS Um I know the ttgo board Is Coming across as TTY icm0 And Um It's physically on this I don't know what you call that Um Because it seems like at one point in Time I was writing new Dev rules Physically to Point to that physical location it also Gives me a vendor product and serial Number And then on the GPS It's coming across as USB 0 Um But then what I write when I write What I thought would be you know fairly Generic I don't know if these are Exactly what I wrote but directionally They're correct where I just put the Vendor ID the product ID and blah blah Blah Then it wasn't showing up [Music] Um And the ls command so

Historically I had written some rules this these are All these are old notes When I was using a the ubiquity robot on A r pi as you can sort of Tell by that Um I was actually going in I'm not I'm sure that's small for you so Let me see if I can make that bigger I was going in in Putting then this Physical address of the USB My stuff I I ended up going with those Physical addresses and as long as you Always plug your USB hub into the same Port on your your laptop And then those uh should remain constant So you can just say take the first USB Port and always plug the GPS in there And take this I can always plug your you Know whatever whatever you want just Make sure you always plug them in the Same place and it's handy to get a piece Of paper and write on your Hub say you Know this this port is GPS this port is TTY Geo whatever it is you know just Just right and right on there so when You go to plug them in later you don't Have to if your plugin is not working Then you have to pull up all these Things and say well what should where Should I really plugged it in it's just Handy to have that labeled ahead of time

Will that work if I don't have a ID Vendor or ID product yeah you don't need Any of that extra crap you just say uh Kind of like those ones down there were Just said uh Yeah that that type of thing is probably All you need is where where that was is TTY IMU Nano Uh Hub type Something I had copied from you know Google searching yeah And it was because I had two Um Teensy boards and or maybe you know It was because I had cheap Arduino Boards and they didn't have a serial Number But You so you're saying Go go for that kernels equals Yeah I think I that that's what I ended Up doing because you know rather than Trying to uh figure it out every time You plug something new in whether is it Going to screw you up so I just simply Said this port will be called like where It says Sim link there you know whatever You want to call it so And all that other stuff ahead of that Sometimes it's just Uh to somebody's interpretation of you Know it was their guessing and how to Make this stuff work I do say on the Left there where it says USB hub type Equals it's got something written down

There I don't know what that does So you may not you may not need that and The kernel equals TTY USB zero zero Through nine You might you might need that so so one Might Um But the one the one that's coming up is USB zero you might have to put that line That one comes up as ACM zero you might Have to change that to say TTY ACM zero Through nine But you know just just play with it and See if it works or doesn't work and Good advice thank you where's those Kernels equals then you got all those Numbers in there do you remember uh just Just off the top of your head you Remember how you got those And I was going to point out that Uh when you when you plug a device in Just do a what do you call it not not D Message yeah do a d message and it'll Say oh you've got a new device it lists A bunch of stuff you can glean it out of There without having to go through all This other stuff trying to track it down Yeah that's I mean so I did a d message On USB 0 and then it fed me back that Yeah and then I did a a d message on That To get you know whatever data was Popping up for that Foreign

1.0 that's probably you know what you Want to put in there to You know that's that's that's the port Address for that particular Port I think Otherwise you still might have to piece Things together a little bit but I think That was that's a direct port address You said here's how you did last time You had something like four or four dash Something well this this is actually Based on your I assume it's based on Your one you're doing right now so Yes this Um is based on the HP laptop Um where the previous one was based on The [Music] RPI running ubiquity yeah okay And if you look at it hard enough you Can tell with those numbers I think Eight is the the number of the USB port On the laptop And then the uh The 1.3 I think is saying on that Port So so on your Hub then that's going to Be the The The Base address of your Hub and Then the the colon 1.0 is going to be The actual uh connector on that USB hub So if you look at it long enough you can Or look at it hard enough you can track Down what all that stuff means but Because that's the basic thing you just Need to know that that Port is going to

Be called whatever you want to call it So I think I will Simplify that you Dev roof that I used Before as much as possible and see what Works and what doesn't yeah Uh let's see then I also spent some time On this Um Installing the nefsat driver But I didn't get very far but these are The older instructions that I had Um So next step is to get the udep thing Working and then Update the I've got Ross installed uh I get the UW Working and install this driver and see If it's Putting out a Ross message So that's right this is a different page Than we were just looking at which I Tried your link and I can view it and I Don't know you know what people have to Have for permissions to get in here but This is I try to break things down a little bit So this is um Just getting the navsat Driver the raw snaps that driver to work So these are old need to be updated Because it's based on RPI yeah it'll probably hopefully be Pretty close I was just thinking that since you're

Pulling these Pages up and and reading Through them that'll just be handy if Somebody Could could click on it go look at this Stuff just to see what's there Foreign That's where I'm at A little bit of progress but um I still need to keep at it How about you with all your Real estate issues any Robot activity Um continuing to order parts and Continuing to take stuff apart and put It back together so on on the last Meeting I was holding up this thing These are the these are the pieces for That back end And this so it's got this axle through And then a wheel slides on the end it's Got a belt drive for it and then two or Three meetings ago I I was showed the Picture of the green robot on the floor With this thing bolted to it so it just Bolted to a piece of plywood with all The stuff on there So I decided if I want to make this Thing uh narrower than what it is Because with this with this Rod right Here I think it will give me the wheel Goes right about here and I think it Gives me 15 inches Center to Center and I thought well if I make it smaller you Know just just to blatantly make it

Smaller I could I could take that down To the Um so the distance between the two Wheels out here instead of being 15 Inches I might take it down to 13 inches Or 12 inches so my my options at that Point I brought up the next problems Because this is a piece of half inch rod From the hardware store and I was trying To see if this would show up on the Camera So right here I I I apparently talk Somebody into putting it on their lathe And cutting this down Here let me let me do this So I cut this down from half inch down To 12 millimeters because the bearing is A 12 millimeter bearing that goes on There and then I also noticed that I've Got Uh somehow I I cut up like a flat spot On the shaft is that going to show up So I think I had somebody probably Somebody had a lathe that that turned Turned down the size and then cut a flat Spot because it's it's a really nice Looking really nice looking uh flat spot On there so the problem is if I if I Want to replace this I could just grab a New uh a new Rod here's here's here's One that hasn't had anything done to it And what I'd have to do I'd have to cut About this much of it down and cut the Cut the diameter down and then cut a

Flat spot and I don't really have I Don't have a metal lathe so I try to Figure out ways could I do it with a Drill and a file or just a file or Whatever And then I was but I thought well if I Were to uh where's my where's my props Right there So I I could just get I could use uh Start off with throated rod and then Figure out how much I want so if I spin This and put a file on it it's gonna It's gonna trim it down quicker because You know most of the metal is already Gone because it's because of the threads There so I might be able to do that so I Can just make a new Rod the length I Want and cut those down But uh it still seems like it's going to Be a pain to do that because I I could Use a file or I could say set up my say Set up my drill press next to a grinder And then you know push the grinder up Against it and then take the handle and Drill press and run the thing up and Down to cut the thing so that that would Be a whole whole nother uh Uh what we call it the exploration and I Thought sure I want to do that right now So the other option would be take this This is the original Shaft if I don't Mind destroying my original Shaft what I Can do is I just cut a piece out of the Middle here so cut out whatever it takes

To make it the length I want and then Take the two pieces and show them back Together and get a v block like this This is what I made on a table saw When I was welding something once before So so if you consider like this here's Your two you know after I cut the shaft In half Then take the two piece and slide them Together like this And then just wet weld you know weld one Spot and turn it and weld it and turn it And weld it so you know two two three or Four different uh tack welds on there Should should solve that so basically I Can just shorten the shaft up by doing That and that should be fairly fairly Quick so it'll still look just like this It'll just be shorter in the middle and Have some nasty looking weld stuff on There now another thing I thought of was If if I'd cut them off and then uh Thread the end of it so So basically it would so it would look So the ends of it would look like this When I got done so I'd have you know the Two pieces and and thread them Appropriately and then use one of these Things Which they call these couplers if you Get smaller everybody calls them Standoffs but you get the bigger ones These uh this is for half inch and it's Called a half inch coupler so yeah I

Think you use it when you put it in uh HVAC so you got threaded rod from the Ceiling you use this to hook them Together that's what they're for but so That'd be another option uh so without Welding I could I could if if I could Figure out how to thread these uh rods That I have that I can screw them Together and these this doesn't actually Fit but we'll we'll pretend these are The right size The boat the bolts are 7 16 and the the Coupler is half inch but basically when I'm done it would be like that and that Would also give me the option if I Wanted to I could I could uh increase or Decrease the length of the shaft by just How far they're screwed into there so That might be another way to uh to Approach that so once I get like I Wanted I could put some Loctite and and Put it on there so it uh make it fairly Permanent so that's a different ways a Different fabrication techniques I've Been looking at trying to figure out how To uh How to get that to work Um so that if I could do that get that Shortened up then that will set the the Width of the back so that you know I say Okay here's the back if I make it 12 Inches wide or 13 inches wide then the Front end is going to have to be that Width

So what do I have on the front that I've Been playing with here Um well I guess it's the same same stuff I was you know showing before where I've Got the the plastic block and it's got Bearings bearings pressed into here and Then a bolt through there and when I Measured the bearings they turned out Their eight millimeter bearings so I Found out that if you live in the United States don't use metric because all the Parts are real darn expensive and you Can't find them anywhere okay you can't Just go to your local surplus store and Get one And here I should have he's taken apart anyway The one here this is this is I think an Official eight millimeter Bolt And so I thought well that's what I have To do so I was at the Surplus Store Digging through stuff and I found some Bolts that looked like they're the right Size They they look like this And I thought well those look like They're right so I ran around the store And found they had some giant calipers Hanging up that you can buy for 24 or Something so it was a 24 inch caliper Just a you know just a mechanical like But just basically like a sliding ruler Is what it was and I measured these and I thought wow that it looks like it's

Eight millimeters then I went over to Home Depot last night to to get some Keys made and I thought well Um Let me let me look at their nuts so I Was trying to find eight millimeter nuts To screw on there and I thought well I'm Not sure if it's right so I got the Little thing on the wall you know it's Got the all the different nuts on it so You can screw it in and I was checking That and it turns out it didn't seem to Want to go in either of the eight Millimeter size so I tried it on the 5 16 so it turns out this is a 5 16 inch Bolt so I came home and pulled out my Calculator and my and uh went on the Internet and said convert convert eight Millimeters to a size and then divide Five by sixteen and turns out there's Only like three thousandths difference Between those two types of bolts so that Right there turns out that instead of Paying three dollars a piece for a bolt Like that And then have to the the lock nuts are Like two dollars and fifty cents for a Lock nut or I can just go into uh Somewhere like if if I use the American Sizes I'd go ahead and buy a bag like This this was uh these are the four inch Long and it says there's six of them in The bag for four dollars and fifty cents And if I if I get the the metric was That they are like three dollars a piece

So it if I can just get away from using The metric completely I'll be much Better off on that So I try to think there's any other any Any more comments about the bolts it That's probably the only size that Between American and Metric that you can Interchange because everything else is Going to be some weird sizes or Something but so it looks like I can Switch over to the uh The American ones so I can get the bolts And I I found these at at the Surplus Store thinking well I'm gonna have to go Back there and buy a bunch of these you Know because that's the only place I can See them build find eight millimeter Bolts but it turns out they're not eight Millimeters anyway so I can just walk in The Home Depot or Menards and buy a bag of Bag of bolts this this length and 5 16 And you know for for very little money I Can get a bunch of those and then all The I can just get nuts anywhere so I I Think I'm happy I figured that out and Didn't waste a lot of time and effort on That So let's see and then on the front end Um well I was showing this last time Well I ordered I ordered some of these Uh ball joints and it turns out they're They're sloppier they're sloppier than I Want them to be and since the whole the

Whole point right now I'm trying to get My my steering uh tighter than it was And it turns out if you get these kind That these These are these These are Nice and tight and it's got more more Length here to do adjustment and I had Two of these so I I just went on uh Amazon I ordered four more so I'll have I'll have enough to do it with so Basically I I also showed I think I Showed last time that you know here's The giant RC Servo and this is this is Actually set up for my transmission but If I do Do it for I'll put a wider plate on here And then have one right here going to The going to to whichever wheel that is And then have another one like here or Go into the other wheel so so I'm going To do everything from the center I'm not Gonna have it like I did before and I'm Not sure it makes a lot of difference But for right now that's that's what I'm Going to try on that What are what are what else do I have What are my other props another thing I Was trying to do you know I was saying I Could thread the ends of these rods and So here's one and I I ended up buying This die to do it with and I bought a Tap and die set from Harbor Freight I Cannot get that to start on say cutting This at all and then I thought well While I was there I found I that this

Tap handle or this die handle cost me Ten dollars and the diet itself I think Was like three dollars and fifty cents So that surprised me it was it was that Cheap so I brought it home and tried it And I I still couldn't get it to start On there and somewhere in the package That said uh you should make sure you Cut the end off nice and square and it Said you should bevel the end so I I was I was just sitting watching TV so I Grabbed a file and tried to cut you know Just a slight bevel on the end and it Looks like that might actually work but I should probably make it more of a Taper and then once I get that then I Think I can put this on and Because it it it wants to start now but I think if I put a taper on there it'd Probably work better so if I can't get That so I I so back to this one if I cut This one off and and thread the two Pieces of The Middle And if I attempt to thread it I can't Well I can still just show them together To weld it so that that's not going to Be at the end of the world I don't think So it just could be experimenting and Learning how to how to get this stuff to Work So other than that So that's that's all the mechanical Stuff that I've been doing I like the cut in the middle trim it off

Put it on your jig and welded solution And that might be the easiest because I Can use that uh I can either use a Hacksaw or I could use my uh take my Angle grinder with a cut off wheel that Seems to be real Handy those angle Grinders because whether you put in a Sanding disc or a cut-off disc and they Also have grinding discs that I never Use those but it seems that you can do Just about anything with one of those Angle grinders and you go to Harbor Freight and buy one for ten dollars or Something when they're on sale so that That works out great Okay What's that looks like you have a jig There that will hold it steady so I mean Uh I would get personally that I would Give that a go I also put a link to Mccas McMaster Carr I don't know if You've ever used them for supplies I get Stuff from them Whenever you know Home Depot doesn't Have it uh I normally don't go to those Kind of places but you know what you Know usually I just go to Amazon and Find out what they have if I can find Amazon and eBay if I can't find it at a Local store But yeah I realize there are lots of Places around like that I picked up an M8 bolt is that what you Were thinking to use originally yes

Um Yeah so they sell them in packages of 10. You recall approximately how much they Charge you for a package attempt Thirteen dollars per pack of 10. So that's that's uh probably about twice The price that I have to pay if I was Using the American type bolts A dollar a boat Another dollar and a quarter a boat Yeah Um the the other point is it depends on What you're trying to do because like Say for instance on the uh the wheels See I've got this this is my wheel that Goes on the back and that's the one that Has the 12 millimeter hole in it well That pretty much dictates what you have To do so I had to cut the shaft down I had to cut the shaft down to uh To 12 millimeters and then oh that's Kind of thing in the middle Foreign Anyway so you got that at it you know it It works it works really well it's just That you're that dictates how you do do It because it's got to fit you know that Shaft has to fit through that 12 Millimeter bearing but then there's like The thing that I was trying to do here Where it's just a matter of putting you Know putting a bolt through this bearing Because these bearings have eight

Millimeter holes and I decided I could Use either an M8 or a 5 16 bolt will That there's really nothing other than The diameter at that point so either one Would work and then if you but if you Already have something that's threaded Then you have to get the right you know You have to get the right stuff like for Instance on these kind of things when You buy these this was bought this is an Um M6 threads that the hole is an M6 and The threads are an M6 so that dictates Well then out here this this threaded Rod has to be M6 of the correct pitch And all all that so but I can put this on there which is metric And put the other stuff that's American And as long as you know you're not Trying to hook them together because the The threads don't match and the sizes Don't match whatever But yeah that's just something to Something to consider on that oh back to Like McMaster Car what what do they do For shipping so if you pay 13 for a box Of bolts then how do they how do they Charge shipping on that Do you soon be muted I do think Um is it so it's a little bit longer it Takes you know a week and I do think you Paid four or five dollars for shipping So Yeah so all that all that stuff adds up

And you just have to figure out you know Do you want to go that way or You know that if I just run over to say Menards or Home Depot and get something That works out great oh oh back my my Stories about the local hardware store That's closing I was keeping track of uh Uh extruded uh steel so I look at like Angle iron and uh I bought one square Tube there a one inch square tube and I Was I was keeping track because they They've purposely marked their prices up A lot anyway just because they're local Surplus Store and for a local a local Hardware store you know neighborhood Hardware store so I was comparing them Against Menards so I started to say well As their their Price reduction comes down at what point Can I get it Uh cheaper at this place as opposed to Going to Menards and it's right now they Got everything as half off and it's About an equal price between the two so I I still don't think I want to stock up On something that's close enough I could Just walk over and buy it and And if I go to Fleet Farm which is a I Think they're even cheaper prices than What Menards has so but that's they're Way on the outside outskirts of town so It's I have to go on a going to Safari To get out there So it's just just more things uh I

Thought I had something else about that Store Well I got I guess the only real point Is they're down to 50 off now on on all Their stuff and I was over there looking for the the M8 Bolts and M8 hardware and number one you Know those kind of places don't have a Lot of metric stuff to start with And if you can find it in the drawer you Know the the the drawers are empty but They and then on top of that they want Three dollars a piece for both so But even even the three dollars a piece You get a half price well we're still a Dollar and a half and So in this case I'm glad I can switch Over to American bolts and they they fit See that fit really well They fit well enough I'll put it that Way Because I got a trade-off here between Where I'm saying well I want it to be The steering to be tighter but then Again it's just an experiment so you Know if I have to I can just do Something and You know just just put it together and Hopefully that's going to be close Enough So that's that's all I have that's all I Have to say about that hardware store Um And I was like yeah it just needs to now

Just sit down and start cutting and Deciding what to do I guess if I cut off This uh shaft cut off my back axle and To make it narrower then I could try to Thread it and if that works I could go That way if I can't get into the thread Then I can just slide it together weld It and be done with it so the only Problem with with cutting this up if I Ever want to put that original thing Back together I'd have to make a new one Of these just like this but if I could Get something else So so you start with the uh let's say Start with the threaded rod and then cut This down to 12 millimeters here that I Think that would be easier to do than Getting a solid rod and cutting it down So there's just more things that I can And this isn't actually affecting Anything else I'm not destroying any Existing stuff other than it's something About at the hardware store so I wouldn't do this I was driving to a Store in Hempstead Texas it's between Houston and and Austin and um You're you're reminding me of I passed a Metal shop You know I don't know Smith's metal shop And it had no job too small that'd be The place to take your uh blank rod and Say uh Did put this on the Lathe for me yeah I Don't know what those people charge you

Know they say no job's too small but Then again uh you may pay pay a lot for That there are people around town I you Know if I wanted to go to the trouble I Could say hey can I can I put this on Your lathe and You know they've got they got various Things that that would work it's just That I like to come up with ways where I can Where I can do it myself so I have to do It the next time I I figured out ways to Do it and have the The stuff and the expertise to be able To do it Makes sense Now it'd be nice to have a complete you Know shop built right on the side of Your house I I worked for this one guy And he he left his company something About a divorce he had to sell off his Share of the company so he just moved All of his stuff out to his farm he's Got this nice big pole building out There and he built a really nice Workshop there they had uh he had like a Bridgeport Mill he had uh drill presses And he's got a 20 ton press brake it was About 10 foot wide and he had all this Kind of stuff and he had welders and Stuff in there but that's a situation Where if you can just get up in the Morning walk across your driveway go and Go in there there's all your stuff set

Up from the day before and started Working on that I think that give you a Great incentive to work on stuff but I usually have to say go in my kitchen And clean off my my work management so It's it's just you know it's a pain to Get started and I don't have all the the Proper tools that uh you could have yeah I'm in a similar boat I've got a Clear out things and move things around And And I do have the option we do have a Maker space here in town I I've used to Be a member of that and that was kind of Nice because if I wanted to weld so I'm Thinking I just go in there walk in the Back room put my stuff up on the table And turn on the welder and do my welding When I'm done just clean off the table And take my stuff and go home that Worked out really well but it I decided It was it was more expensive for what I Was getting out of it I think the time Was like 55 a month or something but if You're not doing anything that's just Another 55 that you're paying out for Not doing anything And now that I could probably get a Senior discount and I don't know that Might be 30 a month so it might actually Be back to my advantage again to check That out But the other the other problem there is They've got like big metal lathes they

Got the Bridgeport mills they say oh but You have to show us you you can use this Safely and then so a lot of they say oh You have to take a class before you can Do it and as long as it's a free class You know I don't I don't have a problem With that but then the the classes they Offer like for the welding classes They've gotten up like 200 is what what They want to take the welding class And that's because they'll get a member That wants to put on a class and then The maker space will take like 25 Percent of the money they get so every Everybody's into you know let's charge People as much as we can so that that's That's another thing I annoyed me about The whole the whole process so Yeah getting that machine work done is Uh been a big challenge for me too so It's like Come up to it and then just stop and Then try to figure that out That's why I started out building with Wood you know plywood and pine boards And whatever and that that that actually Works fairly well it's just that at some Point I was I think I I was pulled some Stuff out of the scrap bed at work that Was steel and I made my first Steel Robot by welding stuff together and that That's pretty much what I've been doing Ever since except when I did the uh If I was doing the prototype for my my

Mini tractor I I built the whole front End out of wood with that just to verify That the size and the shape and the Position of everything and then I went Back and built it you know by I made a Piece of piece of uh steel that was it Wasn't it wasn't a square it was like a Rectangular so it was like one inch by Two inches I took that and they welded Those go-kart Um the steering things on the end of it And so so basically I did it in Wood First that I switched over and made a Metal one it seemed to work out really Well So I'm at the point now my my steering For this new one I need to somehow get It all set up so I could verify you know The height of the the steering servo and The the length of the steering arms and All that kind of stuff so I might Prototype that in Wood just gets wood And glue pieces together and then try to Verify you know it where where I'm off The servo uh Is it going to work or not so Cool coat hanger is a good option too if You need to like check out lengths and Angles and that kind of stuff But not necessarily for a structural uh Anyway you can turn off recording now I Think Okay