Reply with QuoteMactech, I look foward to your making of the spindle and the results at testing. How will you drive the spindle?
Joe
ER16 Router Spindle Build
The spindle we are about to build was machined mostly with a manual lathe
It started buy getting/buying ER16 straight shank collet chuck
(2) precision angluar contact bearings & (1) ABEC5 ball-bearing
Material
303ss Body 1.750" x5.1" long
303ss End caps 1.375" round
303ss spacers 1" round
6061 Aluminum 2" round
A drawing was made around these parts & then machining started
The bore of the main body was rough machined, leaving .020 in the bearing bores for finish maching & a 30deg chamfer was put in each end, this is the most inportant part at this stage
The body was then placed in the lathe between centres to machine the outside, Just .008 was removed from the out side to get it true & parallel
The body needs to be parallel .0001 or better,you need to achieve this before you move on to the next step
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Mactec54
Mactech, I look foward to your making of the spindle and the results at testing. How will you drive the spindle?
Joe
The Spindle Housing was then set up & a 1" clearence hole was bored right through
The front Bearing bore was then rough machined some more
Next the Thread was then cut in the front end 32TPI or if you want Metric .8mm pitch which is almost the same
The Bearing Bore was then finished to size, turned around & the rear was done almost the same way, The rear/top of the Spindle Housing was bored out larger for a floating sleeve, The floating sleeve is spring loaded, to allow for expansion for when the spindle & front bearing warm up
Mactec54
wantacnc
The spindle build is for a customer, He has his own drive motor, I think it is around 1KW
Mactec54
The next parts made were the front Bearing retaining Nut with Labyrinth seal & a spacer
Mactec54
Very cool!I have seen those ER16 chuck+shank on Ebay a few times and wondered about making a spindle.
It looks like a 200mm long shank by 12mm diameter?
RomanLini
Thanks for your comment
Yes the ER collet holders are on Ebay,No matter were you Buy them you have to be Careful with the Quality, most of them need work to make them usable, the one I'm using was not my choice, As some of the parts/material were supplied by the customer, It's 150mm long x 12mm & has no through hole, so makes the small 12mm diameter stronger than one with the through hole
Mactec54
The Top Spindle Rear Bearing Housing/Retainer & End Cap
Mactec54
Very nice work
http://free3dscans.blogspot.com/ http://my-woodcarving.blogspot.com/
http://my-diysolarwind.blogspot.com/
Khalid
Thanks for yor comments, Yes this spindle build will have basic drawings
Mactec54
The Bearing Spacers were made next, The long Spacer has a relief in the bore, mostly for ease of assembly
The Bore of these Spacers has to be a Just sliding fit on the Spindle Shaft, This can not be a loose fit,as this will affect the balance of the Spindle
The trick to making the long Spacer with a small ID, is to do it in 2 parts, then it is easy to do the relief/undercut inside the Spacer
You Bore out one end of the Spacer for a Bush, Push the Bush in & finish machine
The first photo shows the Spacer machined with the end Bush, the next photo shows the (2) Spacers complete
Mactec54
Some changes have been made to the ER16 Collet Chuck, which are needed before assembly
The shoulder behind the head of the ER16 Chuck, needs to be machined true to the shaft & Head, most are not machined/ground when manufactured, They are rough machined & then heat treated, After heat treating most parts of the ER Collets are Ground but not many manufactures do that face
You put the ER Collet Chuck between Centres, see that it is running true, & a light cut on that face to clean it up is all that is needed
The next part to the mod is to put (2) more flats on the head, to match the (2) that are already there
Putting (2) more flats on the head will give it better balance
Mactec54
The Spindle Housing mounting blocks were made next,They are a little thicker than needed for this size spindle
The material used for these mounts,was made from 1"x3"x4" 6061 aluminum
This photo shows the mounting blocks finished & most of the spindle parts compleated
Mactec54
Nice work thus far.... It will be interesting watching the spindle come together.
Robert
Very nice workmanship mactec54. Pieces of machining art, they are.
CarveOne
CarveOne
http://www.carveonecncwoodcraft.com
Great work!
A few of questions, what RPM are you targeting for?
What will you be driving the spindle with motor and belt type?
Will you be cutting wood/plastic/Ali or all 3?
Thank You.
And another question... Are you going to make any for sale??
Roman don't spoil it. I was going to PM that question
Thank You.
Thank you for your support & comments
RTP_Burnsville
CarveOne
Drools
I hope I never missed anyone
RomanLini
Yes at some stage they will be for sale,This will take some time, as I'm overloaded right now
Drools
For speed it depends on what bearings are being used, the Bearings in this spindle are good for 40,000RPM
Will it be doing that, no the customer will mostly run around 10,000/12,000RPM He cuts metal mostly, With a spindle like this you can cut all (3) & more, It again depends on how ridgid the machine is built, as to how well & what you can cut with a spindle built like this
For a belt the best for a spindle if you are not doing ridgid tapping, is the poly-Vee belt, My choice
The customer is using (2) 3/16 Orings for his belt, 1KW DC brushless motor
Mactec54
Beautiful work !
