New Machine Build Benchtop PRO 2436 Build


Page 1 of 3 123 LastLast
Results 1 to 12 of 30

Thread: Benchtop PRO 2436 Build

  1. #1
    Registered
    Join Date
    Dec 2005
    Location
    United States
    Posts
    77
    Downloads
    0
    Uploads
    0

    Default Benchtop PRO 2436 Build

    Hello everyone. Just received my CNC Router Parts Benchtop PRO 2436 via UPS all in order, 8 packages weighing in at 285 lbs. Everything well packed and secure. I

    opened all packages and put all axis's on top of my router frame. Since this is a kit I will thoroughly check everything.The axis's come pre assembled. I will start with the Z axis first as it is the

    smallest and easiest to work with. I removed the dust covers and placed it on my surface plate on top of two 1-2-3 blocks and started indicating. I had found that the router mounting plate is out of parallel with the frame by .032 in 14" and off by .040 in 14"on the side. So I will completely disassemble, square it all up and re assemble.

    Similar Threads:
    Attached Thumbnails Attached Thumbnails Benchtop PRO 2436 Build-zaxis1-jpg   Benchtop PRO 2436 Build-zaxis-jpg   Benchtop PRO 2436 Build-2x3_router_table_steel-jpg   Benchtop PRO 2436 Build-router-render-jpg  

    Last edited by sparkness; 11-21-2017 at 09:18 PM.


  2. #2
    Registered
    Join Date
    Dec 2005
    Location
    United States
    Posts
    77
    Downloads
    0
    Uploads
    0

    Default Re: Benchtop PRO 2436 Build

    Day 2, disassembled the Z axis. This was easy only needed 3,4 and 5 size allen wrenches I checked the linear rails and they were not parallel with the frame by .005 in 8" that will fix up easy. my focus now will be to make the base extrusion flat and the linear rail mounting surface's parallel with the bottom and the left side as these will be my datum. in the second pic you can see a bow in the middle up .015" I will put this on the press to straighten out. On the press I pressed the extrusion .380 or so to move it .015 I got it within .0015 that is 10 times better. next I am going to lap the back and the left side,I have a surface plate that has 120 grit self stick emery applied, this works great. Have to keep sanding as the edges are high no sharpie being removed in the middle yet.

    Attached Thumbnails Attached Thumbnails Benchtop PRO 2436 Build-z-disassemble-jpg   Benchtop PRO 2436 Build-z-axis-bow-jpg   Benchtop PRO 2436 Build-z-press-jpg   Benchtop PRO 2436 Build-lapping-jpg  

    Last edited by sparkness; 11-22-2017 at 02:25 PM.


  3. #3
    Registered
    Join Date
    Nov 2006
    Location
    United States
    Posts
    1000
    Downloads
    0
    Uploads
    0

    Default Re: Benchtop PRO 2436 Build

    Are you going to flatten the critical 80/20 extrusions too?



  4. #4
    Registered
    Join Date
    Dec 2005
    Location
    United States
    Posts
    77
    Downloads
    0
    Uploads
    0

    Default Re: Benchtop PRO 2436 Build

    I will check it and see, i contacted 8020 and they told me .0125 /foot . I finished the Z axis and I had to shim 2 of the bearing blocks .002 and .004 and now I have less than .0005 deviation in 2 planes in 9" of movement. I'm happy now. Next I will check the ballscrew for runout and proper alignment

    Attached Thumbnails Attached Thumbnails Benchtop PRO 2436 Build-squaring-mounting-plate-jpg   Benchtop PRO 2436 Build-8020_specs-jpg  
    Last edited by sparkness; 11-23-2017 at 11:38 AM.


  5. #5
    Registered
    Join Date
    Dec 2005
    Location
    United States
    Posts
    77
    Downloads
    0
    Uploads
    0

    Default Re: Benchtop PRO 2436 Build

    Checking the ballscrew, it is high in the middle by .004" I will put this on the press and straighten out using aluminum blocks for support. this shaft is not too far out, I pressed down .200 and got it down to about a thou.Putting the Z axis back together, the end plates are held together with m6 cap screws 16mm in length and they only reach into the base extrusion 8mm, so I am changing them to 25mm length. Checking the bearing block the bearing is not secure due to the fact that the cap screws are not touching the face of the bearing and it is floating in and out .006" the fix is to use button head cap screw that will clamp across the face. This worked. Bearing locknut uses a set screw clamping down on the threads, I added a brass slug under the set screw to keep the threads from becoming damaged.

    Attached Thumbnails Attached Thumbnails Benchtop PRO 2436 Build-ballscrew-whip-jpg   Benchtop PRO 2436 Build-capscrew-jpg   Benchtop PRO 2436 Build-capscrew1-jpg   Benchtop PRO 2436 Build-bearing-block-jpg  

    Benchtop PRO 2436 Build-bearing-block-close-jpg   Benchtop PRO 2436 Build-button-head-clamp-screw-jpg   Benchtop PRO 2436 Build-locknut-jpg   Benchtop PRO 2436 Build-brass-slug-jpg  

    Last edited by sparkness; 11-24-2017 at 05:26 PM.


  6. #6
    Registered
    Join Date
    Jan 2015
    Posts
    109
    Downloads
    0
    Uploads
    0

    Default Re: Benchtop PRO 2436 Build

    Can I get you to come rebuild my CNCRP Pro 510? Impressive accuracy you're getting and thanks for sharing such detailed information and pictures about what you're doing. Since I didn't do any of that, I don't want to think about the inaccuracies built into my system but it is working well enough that I have no complaints at all. It isn't perfect but for the wood working I do, it works. Yours should be amazing.

    David Gage
    Deep Sea Sound


  7. #7
    Registered
    Join Date
    Dec 2005
    Location
    United States
    Posts
    77
    Downloads
    0
    Uploads
    0

    Default Re: Benchtop PRO 2436 Build

    I want to start out as accurate, square, straight and rigid as possible. I will level it and hopefully not have to mess with it for quite a while once it is completed. So I'm just taking my time, fixing everything I don't like.The kit is very beefy , but extrusions, shafting, steel tubing always need some amount of straightening for use in cnc.



  8. #8
    Registered DaveCNCnewb's Avatar
    Join Date
    Mar 2016
    Location
    United States
    Posts
    98
    Downloads
    0
    Uploads
    0

    Default Re: Benchtop PRO 2436 Build

    I'm with David... very impressive work you are doing. I'd hate to see how out of tune my 4x8 CNCRP Pro is So don't come to my house...ignorance is bliss



  9. #9
    Registered
    Join Date
    Jun 2017
    Location
    Australia
    Posts
    120
    Downloads
    0
    Uploads
    0

    Default Re: Benchtop PRO 2436 Build

    Excellent work!



  10. #10
    Registered
    Join Date
    Dec 2005
    Location
    United States
    Posts
    77
    Downloads
    0
    Uploads
    0

    Default Re: Benchtop PRO 2436 Build

    Time to get the spindle mount prepped. My spindle is a Chinese 2HP Air cooled from ebay. The spindle itself measured an unbelievable 20-30 millionths of run out at the spindle nose based on my 10ths indicator. The specs for this spindle are .0002 (5 microns), some how I lucked out. The cast aluminum spindle mount needs some love as well. first I honed the bore with a cheap cylinder hone to smooth out the slight machining marks, next I installed the spindle and indicated, it was out by .004" in 4" on the base and .018 in 4" on the side. Set it up in the mill and milled the base. I screwed up and added .004 more taper on my first try. after 2 more attempts got it down to .001 and within 0.003 on the side. it took a while setting it up for machining. Tomorrow I will drill the 120mm spaced mounting holes so I can attach it to the Z Axis.

    Attached Thumbnails Attached Thumbnails Benchtop PRO 2436 Build-spindle_1-jpg   Benchtop PRO 2436 Build-spindle_runout-jpg   Benchtop PRO 2436 Build-spindle_2-jpg   Benchtop PRO 2436 Build-spindle_mount-jpg  

    Last edited by sparkness; 11-27-2017 at 10:03 PM.


  11. #11
    Registered
    Join Date
    Dec 2005
    Location
    United States
    Posts
    77
    Downloads
    0
    Uploads
    0

    Default Re: Benchtop PRO 2436 Build

    I'm working on the X Axis today, as I'm waiting for some new bolts and a cutter to be delivered. same basic story the ball screw is out by .005 in 33" and the base has a bow about.015-.020 , I only have a 24" surface plate,so I will have to check using my 48" straight edge. The straight edge specs are .0011 in 48" so this will work fine. to fit it in the press I will have to set up some saw horses for support as the width of my press is only 24" and 4.5 between the frame rails. I pressed .700" down to straighten the ballscrew. On the ballscrew bearing block I replaced the screws with flanged socket head screws, the flange is 9mm, now the bearing is held in properly. Im also using bearing retaining compound as the bearing is a loose fit in its bore.

    Attached Thumbnails Attached Thumbnails Benchtop PRO 2436 Build-press_x_axis-jpg   Benchtop PRO 2436 Build-flanged-socket-head-screw-fix-jpg   Benchtop PRO 2436 Build-bearing_block-new-screws-jpg  
    Last edited by sparkness; 11-29-2017 at 01:53 PM.


  12. #12
    Registered
    Join Date
    Dec 2005
    Location
    United States
    Posts
    77
    Downloads
    0
    Uploads
    0

    Default Re: Benchtop PRO 2436 Build

    Finished the spindle mount, I had to make a long cutter out of a router bit to machine the bolt pockets. Z Axis complete and tested. I am getting 300 IPM

    Attached Thumbnails Attached Thumbnails Benchtop PRO 2436 Build-spindle-mount-jpg   Benchtop PRO 2436 Build-z-axis-complete-jpg   Benchtop PRO 2436 Build-3-4-flush-trim-router-bit-jpg  
    Last edited by sparkness; 12-01-2017 at 09:42 PM.


Page 1 of 3 123 LastLast

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


About CNCzone.com

    We are the largest and most active discussion forum for manufacturing industry. The site is 100% free to join and use, so join today!

Follow us on


Our Brands

Benchtop PRO 2436 Build
Benchtop PRO 2436 Build