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Messages - pedwards2932

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1
Mini CNC / Re: Waiting for my mill
« on: February 25, 2019, 07:49:06 AM »
Hadn't thought of that.....I think what I will do is since it is a 3hr print is I will print enough layers to make sure everything is accurate and use a lot less infill.  Once I know it is correct then print a final product.  My bearings pressed in nice and tight but I felt like the threaded insert didn't have much to hold it.  I think when I redo this I will use some super glue when I press the threaded insert in.  I also have never really checked how well my printer is calibrated so I guess I should do that as well.

2
Mini CNC / Re: Waiting for my mill
« on: February 25, 2019, 03:52:51 AM »
I was thinking of doing something very similar as the part I printed from Thingiverse seems like the position of the holes where the bearing goes is slightly off so when I put the rods in I had to force them a bit so I don't feel like they move smoothly.  I may just design a piece that I can bolt the aluminum piece that came with the unit to it.  I may try it the way it is because it does work just not sure how much extra effort is needed from the motor to move it up and down.  Did you look at the set up from Thingiverse on the link I included?  https://www.thingiverse.com/thing:3221782

3
Mini CNC / Re: Waiting for my mill
« on: February 24, 2019, 04:44:13 PM »
Well I got it together not sure how well it will work....we will see.  Not happy with how tight the thread insert is.....I didn't heat it but pressed it in.

4
Mini CNC / Re: Waiting for my mill
« on: February 24, 2019, 11:44:55 AM »
Almost got everything ready for assembly.  I was thinking of heating the threaded insert so it would melt in place.  I also found this: https://www.thingiverse.com/thing:3221782   Looks like a really beefed up installation.

5
Mini CNC / Re: Waiting for my mill
« on: February 23, 2019, 04:25:53 PM »
Well I got it apart kinda a pain.  Looks like you can push the bearings out.  Not sure how to get the threaded insert out?  Also not sure how to install it in the part I printed.  Any suggestions?

6
Mini CNC / Re: Waiting for my mill
« on: February 22, 2019, 10:52:14 AM »
Got my new spindle in.....plan to print the holder for it this weekend so I can put this beast together.

7
Mini CNC / Re: Waiting for my mill
« on: February 19, 2019, 07:34:56 AM »
Nice.  I am going to try it with the original bracket first just so I can get the machine running.  I have run into that several times with printing where things are too tight so I have started to print out a test section with the hole to see if bearing or whatever fits and adjust till I get it right.  Does it really need 70% infill?  I guess that makes it stiffer just not sure if that is where the flex is occurring.

9
Mini CNC / Re: Waiting for my mill
« on: February 18, 2019, 09:50:50 AM »
I guess since I already ruined the motor the decision was pay 10 or 12 bucks and wait for it to come from China or spend 80 bucks and get the more powerful spindle with power supply....they had it in the US warehouse so I didn't have to wait a month and a half.  Live and learn....at least if I decide to build a bigger machine I have a decent spindle.

10
Mini CNC / Re: Waiting for my mill
« on: February 18, 2019, 08:33:14 AM »
I probably should have just tried it with the supplied collet but had read that it didn't work very well.  I also read that if you froze the motor and heated the collet you could press it on.....that didn't work and it ruined the motor.  I could get the motor pretty cheap but I wanted the more powerful motor that had the collet installed.  I can print the new piece for the motor pretty easily.  I am not going to upgrade the tracks unless it doesn't work for what I got it to do.  I suspect with using it for balsa it will work as it is.

11
General Discussion / Re: Forum isssues?
« on: February 16, 2019, 03:52:48 PM »
ok it seems to be my router is causing the issue.  Site works on other isp connections.  When I bypass my router and go directly into my cable modem I can connect.  Not sure what setting on my router is off but Linksys wants  money to resolve it.  I'll see if I can fix it myself.

12
Assembly Help / Re: Help focusing blue laser
« on: February 16, 2019, 06:00:37 AM »
I will describe how I do focus.  I take index cards and stack them up to the exact thickness of the material I am going to be cutting or engraving.  I adjust the focus close with the low power then run a focus line at about 300mm/min and note the thickness of the burn then I keep adjusting in and burning focus lines.  You will see the lines getting thinner and you will notice it is burning thru one card into another.  When it is optimal you will see a solid burn line in the second card.  I had a hard time visually seeing optimal focus but this method you don't have to see it you have proof thru the index cards that it is focused.

13
Mini CNC / Re: Waiting for my mill
« on: February 16, 2019, 04:54:49 AM »
Guess I'll just have to see how well it works.....I mainly will be doing balsa wood and plywood.  The spindle motor that I got is supposed to be a good upgrade.  Also this may work to stop the flex: https://www.banggood.com/SBR10-L400mm-Axis-Linear-Track-Rails-Shaft-With-2pcs-SBR10UU-Block-Bearing-p-1128948.html?rmmds=detail-lefthotproducts__5&HotRecToken=CgExEAIaAklWIgJQRCgB&cur_warehouse=CN

14
Mini CNC / Re: Waiting for my mill
« on: February 15, 2019, 12:35:56 PM »
I got the 3018 from Banggood. I think it is imported from several different companies but all the 3018 are about the same work area is 300 mm by 180 mm.  It comes with a crappy collet so I was trying to put a real one on and broke the spindle.

15
Mini CNC / Re: Waiting for my mill
« on: February 14, 2019, 07:19:35 AM »
Has my first failure putting the collet on the spindle motor....ruined the motor.  I froze the motor and heated the collet but the fit was so tight that trying to seat the collet it ruined the motor.  New 775 motor is only about 10 bucks but I decided that I wanted the higher output one anyway because I want to be able to try to do aluminum as well.  I got this:
https://www.banggood.com/ER11-Chuck-CNC-500W-Spindle-Motor-with-52mm-Clamps-and-Power-Supply-Speed-Governor-p-1027937.html?rmmds=search&cur_warehouse=CN

It has the collet installed and has more power....reviews on it are pretty good.  I'll have to print up a new holder for it but I think someone already designed one on Thingiverse.

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