MechMate CNC Router Forum

Go Back   MechMate CNC Router Forum > Personal Build Histories > Introduce yourself and start planning
Register Options Profile Last 1 | 3 | 7 Days Search Today's Posts Mark Forums Read

Reply
 
Thread Tools
  #1  
Old Wed 21 February 2018, 08:54
Anscheepers
Just call me: Andre
 
North West
South Africa
Newbie from South Africa

Hey Guys

I am planning on starting a build very soon. I just received my bonus so finally, the funds are sorted.

I have one question though: Taking into consideration that it all depends on build quality, setting up and the use of proper materials etc... What would realistic accuracy be on movements?
Reply With Quote
  #2  
Old Thu 22 February 2018, 12:13
rischoof
Just call me: Rik #92
 
Goirle
Netherlands
Hello Andre
I did some test to now repeatability and accuracy. I have a ball bearing z axis and use steppers with 1:3 belt reduction
Z is 0.01 accurate
I checked with a gauge wich has 0.01mm accuracy and has a travel from 10 mm
when move the machine in steps from 0.1 mm it's are also steps 0.1 mm on the gauge
Then I place the gauge on zero-zero position on the x and y axis ( they are placed in a magnetic foot gauge holder on the frame)
Then let it run a certain program and check the gauges if I sent the machine back to zero. I did this several times. No more then 0.03 mm on the gauges
When I cut a circle from 30 cm in wood, and I check the cutted surface I see I clear circle and don't see any step where the axis reverse direction that means 0 backslash
Reply With Quote
  #3  
Old Fri 23 February 2018, 02:10
Anscheepers
Just call me: Andre
 
North West
South Africa
Mechmate vs Off-the-shelf CNC Router

Hi Rik

Thanks for the reply. That doesn't sound bad at all.
Now the financial manager (aka my wife) asked me why I don't rather buy a machine.
I came up with these reasons thus far:
  • Less expensive
  • Customisable without having to worry about waranties etc.
  • Easier and cheaper to mainatain as I would know the ins and outs

She has countered with these:
  • Might be more accurate
  • It will be worth more when sold
  • It will be more reliable
  • It will have a warranty

Can you guys think of any other pros or cons between the mechmate and a factory built CNC router?
Reply With Quote
  #4  
Old Fri 23 February 2018, 05:12
IamDave
Just call me: Davey
 
Ball Ground, GA
United States of America
"A wise man will listen very carefully, to what the people that know and love him say."
They are the best guidance.
Reply With Quote
  #5  
Old Fri 23 February 2018, 05:32
Anscheepers
Just call me: Andre
 
North West
South Africa
Davey

That's an interesting statement. So you're saying you think I shouldn't have bought the plans...
Reply With Quote
  #6  
Old Fri 23 February 2018, 14:42
rischoof
Just call me: Rik #92
 
Goirle
Netherlands
Pro
You will get a custom made machine with the dimensions You want, and all options you want
It's very reliable
When attention is payed to cabling and electronic set up, easy to trouble should
The forum is the best help desk you will ever get (world wide, and experts on all kind of disciplines, 24h/day available)
You can tell you made it yourself

Con
You will sit coming time less beside your wife on the sofa.
Cutting wood has to wait untill the machine is ready

I enjoyed building the mechmate, and I always enter my shed with a big smile on my face. Gerald made a design which is briljant by it's simplicity!
Reply With Quote
  #7  
Old Fri 23 February 2018, 15:20
IamDave
Just call me: Davey
 
Ball Ground, GA
United States of America
No. I think it is an excellent machine... Money well spent, if that is the direction you decide to go. I meant nothing negative, to the design or the forum. It was only my opinion. Good luck on your build.
Reply With Quote
  #8  
Old Sat 24 February 2018, 05:51
IamDave
Just call me: Davey
 
Ball Ground, GA
United States of America
Andre. You may like this. https://www.facebook.com/groups/227677994349158/
Mike started it last year.
Reply With Quote
  #9  
Old Wed 28 February 2018, 07:15
kaartman
Just call me: Koning #20
 
Abu Dhabi
United Arab Emirates
Hi Andre, the MM is like a 1960 VW Beetle, reliable and simplicity. because you build it you will know what to do if things go wrong - in all these years noting went wrong with my MM only user error. The only maint I do is grease the racks twice a year and I replaced the double-side tape on the rails last month because they started to debond at places.
Make sure you undestand the Z height machine capability that you want to build, what I want to say is ensure enough space for vacuum table, material thicknes and tool length and so on. that said the MM can be adapted in future according to job requirements.
On accuracy- if you build a sloppy MM by cutting corners then you will introduce flex, vibration that will compromise accuracy - keep to the design plans and other adaptive proven methods on this forum and your MM will be chapp.
The only drawback of the MM design is that you can only feed material from 2 sides without breaking the back, so keep that in mind with you workshop layout.

Groette
Koning
Reply With Quote
  #10  
Old Sun 04 March 2018, 21:10
ChuckS
Just call me: Chuck #125
 
Mt Clemens, MI
United States of America
I built mine mostly because there are no proprietary or mystery parts in it. Every piece is one phone call or one email away, usually from multiple suppliers. I knew little when I started, but I didn't find the build difficult at all. I had to learn how the electronics worked, how the software worked, and quite a bit of metal working.

3 year later, I've had to to no maintenance other than checking bolts & such for tightness, and occasionally adjusting something. Same as any other machine. I've broken a few bits due to operator error. I either had the parts on hand or was able to fab them in a few minutes. With most other machines, I would have had a few days of down time instead of an our or two.

I'm looking at building 1 to 3 more of them.
Reply With Quote
Reply

Register Options Profile Last 1 | 3 | 7 Days Search Today's Posts Mark Forums Read

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Newbie from Grahamstown South Africa hentysnr Introduce yourself and start planning 0 Fri 29 January 2016 07:25
Hi my name is mohamed from south Africa mohamed Introduce yourself and start planning 6 Wed 25 June 2014 05:17
CNC IMPORT South Africa Kobus_Joubert The Market Place 5 Sun 27 June 2010 11:36
Hi there Dave from South Africa kooskoek Introduce yourself and start planning 14 Mon 17 August 2009 09:09
South Africa's bright people . . . . . . Gerald D Archives 14 Wed 16 April 2008 15:41


All times are GMT -6. The time now is 09:00.


Powered by vBulletin® Version 3.8.3
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.