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 41 
 on: September 13, 2019, 10:20:20 10:20 
Started by Parad1gm - Last post by Parad1gm

My plans were to put some peice if $#!T together using the parts I had mostly and then have it generate Revision 2. As of right now I'm thinking i may do that just so I have something a little bigger and start saving up for a 6040.  Ideally I would like it to be USB as I don't think I even have a pc kicking around that has a parallel port any more.

The thought of using mdf was squashed pretty quickly and am now considering using salvaged hardwood from pallets (Yes I know most are pine but you can also find some hard wood pallets) to build a torsion box and a gantry. I find myself very fustratingly limited by my current 200mm x 170mm cnc but its been great to learn on and get a better understanding.

I plan to cut mostly hardwoods and eventually if i get a rigid enough cnc some alu.  As for the specifics of what I'm going to make it will vary. Some stuff will be just etsy type things to try and generate some revenue as well as inlayed / embossed / debossed designs  of items that I could not put on etsy. (No not sex toys Tongue)

anyways that thoughts so far. Put something together with what i have so i can do some larger cuts even at a slow rate and work towards getting a 6040



Posted on: September 13, 2019, 10:09:37 10:09 - Automerged

just stay away from TB6550 drivers. They have a lot of problem (check cnczone for reviews). One of the best cheap drivers now are those based on THB6064 or LV8727.

These two chips are amazing,  low heat, no noise, no missing steps, limit current when the motor is not moving. LV8727 is easier to find

I stand corrected its tb6560 link provided below

http://www.cncgeeker.com/3-axis-tb6560-cnc-driver-board-4-stepper-motor-mill-cnc-router-p-41.html

 42 
 on: September 13, 2019, 10:08:11 10:08 
Started by Parad1gm - Last post by pickit2
Second is a larger version of the 3040, y and x close to 3 times larger.
I stalled due to fixed or moving table. I may go to following the 3040.

 43 
 on: September 13, 2019, 09:56:58 09:56 
Started by Parad1gm - Last post by intel


 So this month, at least two weeks, I looked into this. My goal, all together, was to make a triple cnc that makes both 3D printer, engraver and laser cutting engraving. But it is impossible to bring products to our country via Aliexpress and Bangdood. Adding incredible taxes and profits on it means that we can't sell what we do.

 Someone above, does not work for my country. It works for hungry and ruthless traders.

 I wish you all the best for now. I hope I can make at least one toy cnc (!) In the future.

 44 
 on: September 13, 2019, 07:56:28 07:56 
Started by Parad1gm - Last post by hosmis
What you're gonna use to do ?

https://www.aliexpress.com/item/32840845805.html?spm=a2g0o.productlist.0.0.29fd1677YMkjIq&algo_pvid=9837e1eb-c392-4d97-bd98-8949010ce94f&algo_expid=9837e1eb-c392-4d97-bd98-8949010ce94f-0&btsid=b0c85cb8-406d-46db-8e26-0cdf75523f1c&ws_ab_test=searchweb0_0,searchweb201602_4,searchweb201603_55

https://www.aliexpress.com/item/32907631620.html?spm=a2g0o.productlist.0.0.38806aeaYcoV3G&algo_pvid=a89ba1d8-df96-4209-86f0-3fb8782f309f&algo_expid=a89ba1d8-df96-4209-86f0-3fb8782f309f-8&btsid=7779ba7f-f572-4a44-90b2-ea40e40dc0c2&ws_ab_test=searchweb0_0,searchweb201602_4,searchweb201603_55

usb or lpt interface

https://warp9td.com/

https://planet-cnc.com/

https://forum.hobbycnc.hu/

http://linuxcnc.org/  or  mach3-mach4 cnc ( artsoft  )


 45 
 on: September 13, 2019, 12:12:01 00:12 
Started by Parad1gm - Last post by Ahmad_k
just stay away from TB6550 drivers. They have a lot of problem (check cnczone for reviews). One of the best cheap drivers now are those based on THB6064 or LV8727.

These two chips are amazing,  low heat, no noise, no missing steps, limit current when the motor is not moving. LV8727 is easier to find

 46 
 on: September 12, 2019, 11:51:50 23:51 
Started by Parad1gm - Last post by zac
Aluminum alloys are much easier to machine than steel and are rigid if sufficiently thick.

For reference, a friend bought one of these commercial CNC mills about 5 years ago and has been happy with it.  I think it had a 9x49 table and cost about 10K at the time.  It's set up so that it can also be used manually. 

https://www.cncmasters.com/cnc-supra-vertical-milling-machine-catalogue/

I got this model (and installed a digital readout) back in 2009 and wish I had gone for full size CNC version instead. 

https://www.grizzly.com/products/Grizzly-8-x-30-1-1-2-HP-Variable-Speed-Vertical-Mill/G0678

 47 
 on: September 12, 2019, 09:09:37 21:09 
Started by Parad1gm - Last post by Parad1gm
hi
as wizpic said it is a lot cheaper to buy a ready made CNC than building your own, unless u have a lot of time and money to spend Smiley
and if you are going to make that step, never use belts bad idea
and for the materials you can use acrylic sheets instead of MDF, I know MDF is easier to cut, but acrylic is more robust.
all these suggestions are for small sized machine, for bigger machines forget about MDF and acrylic you have to go for steel 
final suggestion buy ready made one

My thoughts for this build is 1000mm x 1000mm work area. How about aluminum as a build material? Not quite steel but much more readily available to me.

Posted on: September 12, 2019, 09:07:55 21:07 - Automerged

I must get back to my second build, abandoned in my loft.

What has you stalled on the build? I like the design? Your own custom or some plan you found?

 48 
 on: September 12, 2019, 05:15:36 17:15 
Started by Parad1gm - Last post by pickit2
I must get back to my second build, abandoned in my loft.

 49 
 on: September 12, 2019, 08:59:48 08:59 
Started by Parad1gm - Last post by Silent_Thunder
hi
as wizpic said it is a lot cheaper to buy a ready made CNC than building your own, unless u have a lot of time and money to spend Smiley
and if you are going to make that step, never use belts bad idea
and for the materials you can use acrylic sheets instead of MDF, I know MDF is easier to cut, but acrylic is more robust.
all these suggestions are for small sized machine, for bigger machines forget about MDF and acrylic you have to go for steel 
final suggestion buy ready made one

 50 
 on: September 11, 2019, 11:43:49 11:43 
Started by Parad1gm - Last post by Wizpic
Personally I would not MDF, I followed some plans to build my own which was made out of MDF and I did the same doubled up the MDF and used bolts and nuts and I though by the extra bits adding more bits to make it strong. Thought I did a really good job cost a lot of money to buy the materials even added pieces of angle iron in places where I could again adding more strength but when I initially tested it was not sturdy enough even though I added all the extra bits and what people had done. The tolerance was no where near door enough for a good machine and for what it cost I could of brought a good machine.

I would make it out of alloy and steel, in the end I brought a 6040 and over the years upgraded the stepper motors and drivers which certainly was cheaper than trying to build me own including buying the machine. But at the end of the day depends on how accurate you want it to be but for me if your going to spend all the time,effort and money you want it to be very good tolerance and accuracy
Just my 2 pennies worth

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