making a base plate help please ? - Router Forums
 
LinkBack Thread Tools Display Modes
post #1 of 8 (permalink) Old 11-24-2011, 12:25 PM Thread Starter
Registered User
 
Join Date: Oct 2011
Country: United Kingdom
First Name: Keith
Posts: 60
 
Default making a base plate help please ?

OK i'm not generaly thick but I am trying to get my head round one thing, making the hole and lip for the pc type bush's. I am using acrylic, I have 5mm thick and 2mm thick and the way I was going to do it was make the base is this, I have used the Erbauer standard base and coppied that, cutting it out using my rotozip and the circular cutting tool, the way I thought you found the center point was to mount the new base plate on the router and then by using say a V bit gently plunge the router to just pierce the acrylic, I thought that by doing that would make the hole central ? am I right ?
then using the center hole I have just made (only small hole by the way say 3mm?)
then using a forstner bit to sink a rebate to fit the bushing adapter plate. finally i could use any number of bigger router bits to cut the through hole with the new base plate fitted?
does this make any sense ? because other than this way I cant think of a way of making sure the base plate hole and fitting for the adapter plate would be central
thanks chaps
Tazkb is offline  
Sponsored Links
Advertisement
 
post #2 of 8 (permalink) Old 11-24-2011, 04:58 PM
Forum Contributor
 
Join Date: Jun 2009
Country: United States
First Name: John
Posts: 3,037
 
Default

Quote:
Originally Posted by Tazkb View Post
OK i'm not generaly thick but I am trying to get my head round one thing, making the hole and lip for the pc type bush's. I am using acrylic, I have 5mm thick and 2mm thick and the way I was going to do it was make the base is this, I have used the Erbauer standard base and coppied that, cutting it out using my rotozip and the circular cutting tool, the way I thought you found the center point was to mount the new base plate on the router and then by using say a V bit gently plunge the router to just pierce the acrylic, I thought that by doing that would make the hole central ? am I right ?
then using the center hole I have just made (only small hole by the way say 3mm?)
then using a forstner bit to sink a rebate to fit the bushing adapter plate. finally i could use any number of bigger router bits to cut the through hole with the new base plate fitted?
does this make any sense ? because other than this way I cant think of a way of making sure the base plate hole and fitting for the adapter plate would be central
thanks chaps
Hi Keith. That's the way I do it, except I use a 1/8" (close enough to 3mm) spiral bit and make a through hole. Basically the same process you just described though,.
then take the base plate off and use that hole to drill the relief and the through hole. Just drill the relief before you drill the through hole otherwise you loose your reference.

John Schaben

The problem with experience is I usually get it immediately after I need it.
jschaben is offline  
post #3 of 8 (permalink) Old 11-25-2011, 06:58 AM Thread Starter
Registered User
 
Join Date: Oct 2011
Country: United Kingdom
First Name: Keith
Posts: 60
 
Default

thanks John,
and how do I cut the lip ? people on here have mentioned using a forstner bit ? but i would need one 62mm in diameter ? the kit i bought was the silverline bushing kit, the brass adapter size is 68mm od with a 62mm lip and 30mm center hole ? and I cant find a 62 mm forstner bit ?
Tazkb is offline  
post #4 of 8 (permalink) Old 11-25-2011, 07:48 AM
Moderation Team
 
BrianS's Avatar
 
Join Date: Nov 2004
Country: Canada
First Name: Brian
Posts: 1,800
 
Send a message via Skype™ to BrianS
Default

Hi Keith. You can also use a hole saw with good results.

Brian


A good marriage would be between a blind wife and a deaf husband.

Michel de Montaigne
BrianS is offline  
post #5 of 8 (permalink) Old 11-25-2011, 08:02 AM Thread Starter
Registered User
 
Join Date: Oct 2011
Country: United Kingdom
First Name: Keith
Posts: 60
 
Default

sorry guys it's just occured to me that making a new base plate I don't need to make a lip to fit the 62mm adapter plate dohhhhh ! I just need to make a lip to fit the the guide bush's which is just over 30mm ? what a thickie sorry guys i'm not firing on all cylinders today
Tazkb is offline  
post #6 of 8 (permalink) Old 11-25-2011, 09:09 AM
Forum Contributor
 
Join Date: Jan 2006
Country: United States
First Name: Bj
Posts: 23,786
       
Default

Hi

Who said it needs to be round. a sq. one works so much better

Oak Park Enterprises Ltd.: Catalogue

Oak Park Enterprises Ltd.: Catalogue

http://us.oak-park.com/catalogue.htm...&product=BP093

http://us.oak-park.com/catalogue.html?list=BP-7BP-

http://us.oak-park.com/catalogue.htm...roduct=MBK0990

By the way hole saws suck they are made to cut out a hole not a flat bottom hole. that's needed for the lip of a guide..

http://www.leevalley.com/en/wood/pag...00,51208,41778

forstner bits Cheaper than hole saws the norm
http://www.ptreeusa.com/forstner_bit_sets.htm

" Benjamin Forstner patented his forstner bit on Sept. 22, 1874. The successful invention of the forstner bit was to make him a rich man. Without the lead screw (which Forstner calls the "gimlet-point") and cutting lips of more conventional wood boring bits it would prove especially useful to gunsmiths like himself and other high-end woodworkers. The forstner bit was unsurpassed in drilling an exceedingly smooth bore hole, with a flat bottom."
===

"It's fine to disagree with other members as long as you respect their opinions"

Marc Sommerfeld Tools ,Videos
http://www.youtube.com/channel/UCT-n...RWaEpMA/videos

Find all threads started by bobj3
http://www.routerforums.com/search.php?searchid=944097



Last edited by bobj3; 11-25-2011 at 10:32 AM.
bobj3 is offline  
post #7 of 8 (permalink) Old 11-25-2011, 10:11 AM
Retired Moderator
 
Mike's Avatar
 
Join Date: Nov 2004
Country: United States
First Name: Mike
Posts: 11,317
 
Send a message via Skype™ to Mike
Default

I use hole saws for this. A lip the width of your hole saws teeth is plenty of support for the guide bushings and since the hole saws teeth are all at the same level it only requires you to monitor the depth of cut. I use mostly Lenox hole saws which have nicely hooked, uniform teeth. Note also the nice hole design on the sides which makes it super easy to pry out the plugs with a screwdriver.
Attached Images
File Type: jpg VacGuard 07.JPG (38.6 KB, 23 views)

Mike
"Living in the D" (this means Detroit!)
"It's fine to disagree with other members as long as you respect their opinions"

Last edited by Mike; 11-25-2011 at 10:15 AM.
Mike is online now  
post #8 of 8 (permalink) Old 11-25-2011, 05:14 PM Thread Starter
Registered User
 
Join Date: Oct 2011
Country: United Kingdom
First Name: Keith
Posts: 60
 
Default

square bases seem quite popular and as such while I have a chunk of spare acrylic around I fully intend making a square base, as well as a standard shaped one. I have ordered a 35mm forstner bit to cut the lip and allready have a 30mm one to cut the hole. I have no problem with hole saws but the quality varies greatly, cheap ones wobble a lot and you end up with a hole either bigger or slightly out of shape. only the more expensive ones i would trust enough on such a delicate object
thanks guys

Last edited by Tazkb; 11-25-2011 at 05:18 PM.
Tazkb is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Router Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Base Plate for Craftsman Router Steve1946 Craftsman 12 12-04-2014 06:22 PM
Making a Plate TWBryan Table-mounted Routing 2 08-08-2011 10:39 AM
The Marvel 3 in 1 tool from MLCS: base plate and table mount advice please loninappleton Table-mounted Routing 4 07-10-2010 08:32 PM
Polycrilic Plate Thickness cbsjoez1935 Starting Off 5 09-28-2009 06:56 PM
Base Plate Help CanuckGal Portable Routing 47 05-16-2009 04:10 PM

Posting Rules  
You may post new threads
You may 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
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome