CAMheads CNC Router Forum By: CAMaster CNC

Go Back   CAMheads CNC Router Forum By: CAMaster CNC > CAMaster Machines > General Discussion

Reply
 
Thread Tools Display Modes
  #1  
Old 08-28-2017, 07:13 AM
TimPa TimPa is offline
CAMaster Owner
 
Join Date: Aug 2017
Location: nw pa
Posts: 57
Default table configurations

trying to decide which table to purchase, mdf, slotted, or vacuum.

we will not be doing sheet goods often if at all. mostly wooden projects. I read that vacuum is the way to go for production work. but then is there a spoil board? is it on top of the vac table.

a little confused on this. like the idea of vac, but not if I am covering it up???
thanks in advance....
Reply With Quote
  #2  
Old 08-28-2017, 07:35 AM
Ger21 Ger21 is offline
CAMhead Legend
 
Join Date: Apr 2014
Location: Shelby Township, MI
Posts: 318
Default

You might want to consider using vacuum pods, which will give more holding power. A system where they are easily moved around would be ideal.
You'll probably need to make them yourself, though.
A "normal" vacuum system pulls through the MDF spoilboard, but a system like that probably won't have enough vacuum for hardwood parts, unless you have a really good pump, like a $10k Becker.
__________________
Gerry

JointCAM - CNC Dovetails & Box Joints

Reply With Quote
  #3  
Old 08-28-2017, 09:38 AM
keithrhyde keithrhyde is offline
CAMaster Owner
 
Join Date: Jun 2016
Location: Winchester, Virginia
Posts: 272
Smile Fwiw

Tim, one of the issues with a vacuum table that I did not anticipate was noise. I have the Storm and standing next to it is ~90 db which in conjunction with my 3HP DC was too much. The vacuum is a high pitched noise which is worse vice my DC which is lower pitched. I mounted it outside and ran PVC inside to the machine. After a year of use I still feel I made the best decision with vacuum. I don't have to worry about hold downs getting in the way and/or damaging expensive bits. I have done small parts down to ~6 x 6 inches with no movement. My test is to push as hard as I can against the wood and if it doesn't move than it is good. My machine is small 25 x 36 inch bed so easy to fill the gaps. Those with large machines I think mostly use vacuum but they do sheets.

Ultra Light Density Board made by Trupan is the best for a spoilboard which is what most of us use. As you already know large pieces are ideal but with smaller pieces you need a lot of scrap wood to surround it. Not a problem for me since I make furniture mostly and I have plenty of left overs. Of course you could use the spoilboard to screw your pieces down, double sided tape or plastic nails. The spoilboard is sacrificial There are many ways to skin the cat and as in most problems "it depends". There are no perfect solutions but for me the vacuum works best. I am sure others on here will respond with their experiences but that's my two cents.
__________________
Keith Hyde, Winchester, VA
2016 Stinger 1, 1.7KW HF Spindle HSD
Performance Package Pro, Vac, lathe, Aspire 9
Former Marine and retired Seabee Master Chief.
Furniture is my hobby not my vocation.
hyde.consulting@comcast.net
Reply With Quote
  #4  
Old 08-28-2017, 11:30 AM
tmouse tmouse is offline
CAMhead Legend
 
Join Date: Aug 2014
Posts: 105
Default

If you use pods you can use a smaller Gast pump that is quieter also think about a Fein Vac as a source they are a lot quieter then the black boxes I run 2 and you can hold a conversation next to them
Reply With Quote
  #5  
Old 09-05-2017, 11:58 AM
TimPa TimPa is offline
CAMaster Owner
 
Join Date: Aug 2017
Location: nw pa
Posts: 57
Default

newby questions:
how do you typically route the vacuum from the table to the pods?

what is the best way to have both vacuum table and clamp capability?
Reply With Quote
  #6  
Old 09-06-2017, 07:54 AM
Ger21 Ger21 is offline
CAMhead Legend
 
Join Date: Apr 2014
Location: Shelby Township, MI
Posts: 318
Default

Pods would normally be connected directly to the pump, or through a manifold.
__________________
Gerry

JointCAM - CNC Dovetails & Box Joints

Reply With Quote
  #7  
Old 09-06-2017, 09:52 AM
de5 de5 is offline
Cobra Owner
 
Join Date: Jan 2011
Location: Honea Path, SC
Posts: 912
Default

Tim,

What is the range of sizes you plan to cut? I work in solid wood too (never use sheet goods) and have a vacuum table that works very well for me. The biggest board it will accommodate is about 8" wide x 22" long. This suits all my needs. Of course you can scale that up, but the bigger you go, the more likely you are to have issues with leaks. The thread below shows some pictures of my table. You can see some of the strips of gasket that make it air tight. If this size will work for you, I will be happy to help. My pump is a Gast 3040 V-115A. It is rated 25 CFM, and 20 inHg. I have the pump upstairs and connected with 3/4" PVC.

http://www.camheads.org/showthread.php?t=7084

If you feel like taking a road trip, come on down.

Charlie
__________________
Charlie Hind
Cobra 404 ATC with 12 tool positions & 4th Axis (2012-present)
(2006-2012 - K2 CNC... sold in 2012 to buy the Cobra)
WinCNC
www.hindocarina.com
http://facebook.com/hindocarina
Reply With Quote
  #8  
Old 09-06-2017, 10:54 AM
TimPa TimPa is offline
CAMaster Owner
 
Join Date: Aug 2017
Location: nw pa
Posts: 57
Default

thanks for the info Charlie, and the invite - very gracious. I am in the "all inputs being absorbed" mode, trying to learn as much as possible.
we have so many projects in mind. is that the standard camaster vacuum table?
Reply With Quote
  #9  
Old 09-06-2017, 10:57 AM
de5 de5 is offline
Cobra Owner
 
Join Date: Jan 2011
Location: Honea Path, SC
Posts: 912
Default

No, the standard table from CAMaster covers the entire table. This is a small vacuum fixture I made from two sheets of corian glued together.
__________________
Charlie Hind
Cobra 404 ATC with 12 tool positions & 4th Axis (2012-present)
(2006-2012 - K2 CNC... sold in 2012 to buy the Cobra)
WinCNC
www.hindocarina.com
http://facebook.com/hindocarina
Reply With Quote
  #10  
Old 09-06-2017, 10:20 PM
Bob Walters Bob Walters is offline
CAMaster owner
 
Join Date: Oct 2015
Location: Lebanon, Ohio
Posts: 525
Default

Here is a link of what I did for my table. I use a piece of 1/2 inch mdf as a spoilboard and put my piece on top of that. My little joewoodworker pump is pulling about 20hg and the piece is stuck like glue.

http://www.camheads.org/showthread.php?t=8540
__________________
Bob Walters
Lebanon, Ohio

2016 Stinger II SR-44
Fast Tool Change
Laser Cross Hair
3.0 kW Spindle
1200 oz Digital Stepper Drive System
Remote Handheld Keypad
Vectric VCarve Pro 9.0

www.cool-signs.com
Reply With Quote
Reply

Thread Tools
Display Modes

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


All times are GMT -4. The time now is 03:16 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.