Thank you to our advertisers!







Author Topic: my tupperware and concrete CNC milling machine ( build  (Read 1178 times - 1 votes) 
)

Offline Rob M

  • GTA Senior Contributor
  • ******
  • Posts: 5715
Re: my tupperware and concrete CNC milling machine ( build
« Reply #20 on: May 03, 2021, 02:29:28 PM »
Rob, You should get some kind of engineering award for that. That is awesome!

hahaha, yea, redneck resourcefulness trophy (-' thanks
  • Louisiana

Online JuryRigger

  • NUAH Club Member
  • GTA Senior Contributor
  • ******
  • Posts: 2467
  • Chasing down 2 MOA @ 100 yds with a springer
  • Real Name: Jesse
Re: my tupperware and concrete CNC milling machine ( build
« Reply #21 on: May 04, 2021, 07:34:38 PM »
 :D
Nothing like home-brew machine tools!
Jesse
  • Buckeye State
"Numbers don't lie until they're cherry-picked statistics"-Forest Addy
The First Amendment guarantees all others
In a time of Changing Hearts and Great Unknown...
My .22 Diana 350 N-Tec Magnum-
(Sorry, but you are not allowed to access the gallery)

Offline Rob M

  • GTA Senior Contributor
  • ******
  • Posts: 5715
Re: my tupperware and concrete CNC milling machine ( build
« Reply #22 on: May 04, 2021, 08:52:28 PM »
:D
Nothing like home-brew machine tools!
Jesse

yep.. for most machines, i probably wouldnt bother, but after researching the price of small cnc mills , i had no choice (-'
  • Louisiana

Online JuryRigger

  • NUAH Club Member
  • GTA Senior Contributor
  • ******
  • Posts: 2467
  • Chasing down 2 MOA @ 100 yds with a springer
  • Real Name: Jesse
Re: my tupperware and concrete CNC milling machine ( build
« Reply #23 on: May 04, 2021, 10:39:46 PM »
:D
Nothing like home-brew machine tools!
Jesse

yep.. for most machines, i probably wouldnt bother, but after researching the price of small cnc mills , i had no choice (-'
I can imagine!!  :P
Jesse
  • Buckeye State
"Numbers don't lie until they're cherry-picked statistics"-Forest Addy
The First Amendment guarantees all others
In a time of Changing Hearts and Great Unknown...
My .22 Diana 350 N-Tec Magnum-
(Sorry, but you are not allowed to access the gallery)

Online rsterne

  • Member 2000+fps Club
  • Bob and Lloyd
  • GTA Senior Contributor
  • *****
  • Posts: 25323
  • GTA Forums Person of the Year 2017
  • Real Name: Bob
Re: my tupperware and concrete CNC milling machine ( build
« Reply #24 on: May 05, 2021, 06:08:42 PM »
My old boss at the machine shop I worked at before retiring had a neat trick when he was trying out a new program on his CNC mill.... He would put a pencil in the chuck, and mount a block of styrofoam on the table before pressing run for the first time.... It avoided several expensive crashes from incorrect G-codes....  8)

Bob
  • Coalmont, BC, Canada
Dominion Marksman Silver Shield - 5890 x 6000 in 1976, and downhill ever since!
Airsenal:
1750 CO2 Carbine, .177 Uber-Pumper, .22 Uber-Carbine, .25 Discovery, 2260 PCP 8-shot Carbine, 2260 HPA (37 FPE), 2560 HPA (52 FPE), XS-60c HPA in .30 cal (90 FPE), .22 cal QB79 HPA, Disco Doubles in .22, .25 & .30 cal, "Hayabusa" Custom PCP Project (Mk.I is .22 & .25 cal regulated; Mk.II is .224, .257, 7mm, .308 & .357; Mk.III is .410 shotgun and .458 cal), .257 "Monocoque" Benchrest PCP, .172/6mm Regulated PCP and .224/.257 Unregulated, Three regulated BRods in .25 cal (70 FPE), .30 cal (100 FPE) & .35 cal (145 FPE), .257 Condor (180 FPE).

Offline Rob M

  • GTA Senior Contributor
  • ******
  • Posts: 5715
Re: my tupperware and concrete CNC milling machine ( build
« Reply #25 on: May 05, 2021, 07:11:51 PM »
My old boss at the machine shop I worked at before retiring had a neat trick when he was trying out a new program on his CNC mill.... He would put a pencil in the chuck, and mount a block of styrofoam on the table before pressing run for the first time.... It avoided several expensive crashes from incorrect G-codes....  8)

Bob

lol, not  a bad idea.. Thankfully ., i had a cnc router before this , so i did my first 100 crashes long before building  this one.
  • Louisiana

Offline BigBird

  • Expert
  • *****
  • Posts: 1398
  • yes
    • Youtube channel
  • Real Name: Dan
Re: my tupperware and concrete CNC milling machine ( build
« Reply #26 on: July 22, 2021, 05:25:50 PM »
Any work worth sharing on this yet?  I may have not seen it elsewhere.
  • USA, VA, Winchester
For God did not send his Son into the world to condemn the world, but in order that the world might be saved through him.
John 3:17 ESV

Offline Rob M

  • GTA Senior Contributor
  • ******
  • Posts: 5715
Re: my tupperware and concrete CNC milling machine ( build
« Reply #27 on: July 22, 2021, 11:38:41 PM »
Any work worth sharing on this yet?  I may have not seen it elsewhere.

oh a bunch of stuff.. ill Pm you some pics .. i run it almost every day for something or other.
  • Louisiana

Online sb327

  • Expert
  • *****
  • Posts: 1010
  • yes
  • Real Name: David
Re: my tupperware and concrete CNC milling machine ( build
« Reply #28 on: July 23, 2021, 12:30:26 PM »
Glad itís working. I wouldnít mind seeing it as well.

Dave
  • USA, OK, Stigler
Dave

Offline Rob M

  • GTA Senior Contributor
  • ******
  • Posts: 5715
Re: my tupperware and concrete CNC milling machine ( build
« Reply #29 on: July 23, 2021, 04:10:40 PM »
sent some pics , when i do something that looks cool and is airgun related , ill post here.. I use the cnc like most people use a dremel . ( quick repairs , brackets , random ideas.
  • Louisiana

Offline MJP

  • Member 3000+Fpe Club
  • Expert
  • *****
  • Posts: 1954
  • I'll make it real. For me.
  • Real Name: Marko
Re: my tupperware and concrete CNC milling machine ( build
« Reply #30 on: July 23, 2021, 04:19:17 PM »
Like a dremel, me too I use the machining center for just about every odd job.
Did some 3D contouring today and have to say, CAM is the only really good way to play.
I have hand programmed thousands of parts in the past but not going to do that if I have a choice.

Marko
  • Finland
Impossible just takes a little bit longer to achieve.
If an engineer is not presented with a suitable problem, they will create their own!

Offline Rob M

  • GTA Senior Contributor
  • ******
  • Posts: 5715
Re: my tupperware and concrete CNC milling machine ( build
« Reply #31 on: July 23, 2021, 04:35:19 PM »
ye

yep , i run easel in the shop and fusion on my laptop , both ready to go in 15 seconds .. easel lets me get out a simple shape contour or a slot  in under 2 minutes.. fusion for the more complex designs .. Its like my bandsaw, dont know how i lived before i had it  ;D
  • Louisiana

Online sb327

  • Expert
  • *****
  • Posts: 1010
  • yes
  • Real Name: David
Re: my tupperware and concrete CNC milling machine ( build
« Reply #32 on: July 23, 2021, 06:46:21 PM »
Iím still learning a bit but I do like my little bullet mold maker saddle for the mini lathe. Beats the heck out of buying a mold and not liking it.

Dave
  • USA, OK, Stigler
Dave

Offline Rob M

  • GTA Senior Contributor
  • ******
  • Posts: 5715
Re: my tupperware and concrete CNC milling machine ( build
« Reply #33 on: July 23, 2021, 07:34:48 PM »
Iím still learning a bit but I do like my little bullet mold maker saddle for the mini lathe. Beats the heck out of buying a mold and not liking it.

Dave
you already know enough to make a simple 3 axis cnc mill. ( based on the stuff you did with the lathe
  • Louisiana

Online sb327

  • Expert
  • *****
  • Posts: 1010
  • yes
  • Real Name: David
Re: my tupperware and concrete CNC milling machine ( build
« Reply #34 on: July 23, 2021, 09:32:46 PM »
Iíve got a 3018 and was originally going to use it to Ďboreí the bullet molds then came up with the lathe idea. Have you considered trying to bore a mold with your mill?

Dave
  • USA, OK, Stigler
Dave

Offline Rob M

  • GTA Senior Contributor
  • ******
  • Posts: 5715
Re: my tupperware and concrete CNC milling machine ( build
« Reply #35 on: July 23, 2021, 10:05:53 PM »
no , not really.. I dont know enough about the topic and  figured theres already experts making them , and those look pretty nice.
  • Louisiana

Online JuryRigger

  • NUAH Club Member
  • GTA Senior Contributor
  • ******
  • Posts: 2467
  • Chasing down 2 MOA @ 100 yds with a springer
  • Real Name: Jesse
Re: my tupperware and concrete CNC milling machine ( build
« Reply #36 on: January 14, 2022, 10:24:59 PM »
Hey Rob-question for ya... Any sign of creep/distortion? Been doing a little reading; and it seems one of the biggest concerns with concrete for machine tools is it being unstable... How long did your casting set before you got it all put together?
Thanks,
Jesse
  • Buckeye State
"Numbers don't lie until they're cherry-picked statistics"-Forest Addy
The First Amendment guarantees all others
In a time of Changing Hearts and Great Unknown...
My .22 Diana 350 N-Tec Magnum-
(Sorry, but you are not allowed to access the gallery)

Offline Rob M

  • GTA Senior Contributor
  • ******
  • Posts: 5715
Re: my tupperware and concrete CNC milling machine ( build
« Reply #37 on: January 14, 2022, 10:51:21 PM »
no issues here so far .. The rail supports,  and the main upright beam ( column ) had to set in the concrete.. so that was a few days.. By the time i turned the  machine on from first pouring was likely 2 weeks, maybe 3.... Theres been no issues,one way I can tell is that my bed and column are in no way physically connected aside from the poured concrete.. So when I check my tram , one would think it would show up.. No visible cracks either.. I think the bigger picture is this , were the machine a giant piece of welded steel or cast epoxy resin , just the frame would have cost me $1000-1500 or more.. AS it sits now , the main concrete(360lbs )  , tupperware, and steel post column cost about 100 total ..For the accuracy youre gonna need in hobby parts, this setup cant be beat dollar for dollar. And that doesnt even factor trying to match the rigidity , whic although an unspoken rule is the most important factor on a mill. the pricey parts are linear rails , ballscrews , steppers, stepper drives, and a controller .. but thats all fairly economical too.. If youre thinking about a manual mill from concrete, do it , if youre thinking of a cnc from concrete , do it.
« Last Edit: January 14, 2022, 10:57:49 PM by Rob M »
  • Louisiana

Online JuryRigger

  • NUAH Club Member
  • GTA Senior Contributor
  • ******
  • Posts: 2467
  • Chasing down 2 MOA @ 100 yds with a springer
  • Real Name: Jesse
Re: my tupperware and concrete CNC milling machine ( build
« Reply #38 on: January 15, 2022, 12:44:12 AM »
Thanks-at the moment, just reading up-your sure can't beat the price of cement!
I've even got a free source for sand and gravel-have a small creek on the property...
Jesse
  • Buckeye State
"Numbers don't lie until they're cherry-picked statistics"-Forest Addy
The First Amendment guarantees all others
In a time of Changing Hearts and Great Unknown...
My .22 Diana 350 N-Tec Magnum-
(Sorry, but you are not allowed to access the gallery)

Online sb327

  • Expert
  • *****
  • Posts: 1010
  • yes
  • Real Name: David
Re: my tupperware and concrete CNC milling machine ( build
« Reply #39 on: January 15, 2022, 08:20:19 AM »
Yep, just the mass is priceless when it comes to machinery. And I havenít looked specifically but concrete should have as good or better resonance dampening than cast iron.

Dave
  • USA, OK, Stigler
Dave