no spindle speed on router

All info relating to the Denford Router 2600 and Pro CNC routers

Moderators: Martin, Steve, Mr Magoo

Post Reply
hedmunds
Posts: 6
Joined: Wed 20 Feb , 2008 3:16 am

no spindle speed on router

Post by hedmunds » Mon 04 Jul , 2011 7:43 am

Problem: I have just turned on my machine and everything seems fine but no spindle speed. When I try to operate manual spindle still no go. On the codes it goes over the line but seems to lock the door and stop on the code. fuses look ok.
Lead up to problem: no issues were evident in the lead up.
Maintenance: regular daily and weekly maintenance.

User avatar
Steve
CNC Guru
CNC Guru
Posts: 1430
Joined: Tue 21 Feb , 2006 16:15 pm
Location: Denford UK

Re: no spindle speed on router

Post by Steve » Mon 04 Jul , 2011 8:02 am

What model of router do you have?

If it has a Porter Cable spindle motor have you unplugged it and then tried it out side the machine? You could plug it into the mains cord to the machine and it should run.

Check the on off switch on the motor.

Check the motor brushes.

Jeff Chandler
Posts: 12
Joined: Thu 29 May , 2008 2:31 am
Location: Perth, Western Australia

Re: no spindle speed on router

Post by Jeff Chandler » Wed 06 Jul , 2011 23:22 pm

I have just had the same thing happen.
2600 pro
Fimec P type motor
The motor stopped, emergency stop activated.
Turned everything off and restarted. The motor made different noise then stopped, emergency stopped activated.
Once the motor was removed it made a bearing grinding noise once spun with fingers.
Could it be the bearing? I thought they were ceramic?

Cheers
Jeff C
Denford Machines ROCK!!!

User avatar
Steve
CNC Guru
CNC Guru
Posts: 1430
Joined: Tue 21 Feb , 2006 16:15 pm
Location: Denford UK

Re: no spindle speed on router

Post by Steve » Thu 07 Jul , 2011 11:19 am

Hi,

Yes the bearings on the Spindle motor are ceramic. It sounds like they have failed.

There are several things that could cause issues with the spindle motor and the maintanance of it is covered in the manual.

I will have posted excerts from the manual in the next couple of posts.

The bearings can be damaged if loaded when cold, fitted with extra long or unballenced tooling or by the ingress of dust.


START UP

When you start the motor for the very first time or if the motor
has not been used for over a month, carry out a brief running
in routine with the following times:
5 minutes at 50% of the max. speed
3 minutes at 80% of the max. speed
2 minutes at 100% of the max. speed
With every daily start, ALWAYS PREHEAT THE SPINDLE
MOTOR following the indicated times:
2 minutes at 50% of the max. speed
2 minutes at 80% of the max. speed
1 minute at 100% of the max. speed
This routine allows the bearings and all rotating parts to
reach the ideal working temperature. It shall then reach the
maximum speed shown on the motor plate. If the spindle
motor is loaded cold, there is a reduction in the preload of the
bearings, and they will wear prematurely as a result.

User avatar
Steve
CNC Guru
CNC Guru
Posts: 1430
Joined: Tue 21 Feb , 2006 16:15 pm
Location: Denford UK

Re: no spindle speed on router

Post by Steve » Thu 07 Jul , 2011 11:21 am

Maintenance of the Fimec spindle motor is limited to:-

i. Regularly (at least once a day if tools are changed
frequently) checking that the surfaces of the spindle, tool
housing and tool are clean.
ii. Occasionally cleaning the grill of the cooling fan with a soft
brush or vacuum (never use compressed air) and removing
any objects blocking the air ways.
iii. Occasionally checking the security of the fi xing of the motor
to the machine.
iv. The bearings are lubricated for life and do not require
greasing.
For any maintenance beyond the above, the motor should be returned to
Denford or an authorised Fimec agent.

User avatar
Steve
CNC Guru
CNC Guru
Posts: 1430
Joined: Tue 21 Feb , 2006 16:15 pm
Location: Denford UK

Re: no spindle speed on router

Post by Steve » Thu 07 Jul , 2011 11:25 am

Standard Tool Change System.
The tool change system, supplied as standard with your Compact 100 Pro, comprises four elements:
i) The spindle motor with attached threaded shaft, confi gured to allow fitment of the cutting tool and collet assembly.
ii) The collet and nut assembly - a tapered, tubular, split metal collet held inside the locking nut, which threads directly onto the router motor threaded shaft. Different sized collets and collet adaptors are available to allow use of cutting tools with varying shank sizes.
iii) The cutting tool. (See recommendations below).
iv) Special Tooling - 2 off double ended spanners are supplied with the machine. Bear in mind the following recommendations when choosing tools:
a) Only use fully sharpened tools, and make sure that they are securely locked in the spindle.
b) Never use bent or damaged tools, chipped tools, or tools that are not perfectly balanced.
c) Always make sure that the mating surfaces of tools are perfectly clean and dent free before fi tting the tool in the tool holder.
d) Never use tools at speeds in excess of that punched on them or specified by their manufacturer.
e) Always ensure that the following essential requisites are met before using any tool at high speed:
• The tool must be of compact, short, and lightweight design.
• The tool must be a precision instrument, and any inserts must be held in to a high degree of security.
• The tool must be balanced and must mate symmetrically with the tool holder.
• The cutting surfaces of the tool must be located near its centre of rotation.
In general, the recommended balance rating for tools run at speeds over 6000 RPM is G2.5 (ISO 1940 standard).

Post Reply