Search found 118 matches

by Bentworker
Fri Jul 05, 2019 11:32 am
Forum: General Discussion
Topic: Horrors of Buffer Safety
Replies: 40
Views: 3523

Re: Horrors of Buffer Safety

For what it is worth Baldor makes and sells a lot of buffers - and in their instructions they indicate "The buffer must be securely bolted to a rigid mounting surface. If a pedestal is used, first bolt pedestal securely to floor and then bolt buffer to pedestal." https://www.baldor.com/shared/manual...
by Bentworker
Fri Jul 05, 2019 9:44 am
Forum: General Discussion
Topic: Horrors of Buffer Safety
Replies: 40
Views: 3523

Re: Horrors of Buffer Safety

Did you decide to bolt the buffer down?
by Bentworker
Wed Jul 03, 2019 10:43 am
Forum: General Discussion
Topic: Horrors of Buffer Safety
Replies: 40
Views: 3523

Re: Horrors of Buffer Safety

The whole idea behind bolting it down might not be for the reasons you are contemplating. I witnessed a round motorcycle headlight trim being buffed, and the way it was being held allowed the inner rolled lip of the ring to catch on the buffer, which in a split second pulled the ring over the wheel ...
by Bentworker
Sat Jun 22, 2019 10:17 am
Forum: General Discussion
Topic: Water cooling a 12HP air cooled motor
Replies: 28
Views: 3726

Re: Water cooling a 12HP air cooled motor

You may not want to directly cool the motor with water for simplicity, and because a leak could be pretty catastrophic On large hydroelectric generators the housing where the stator and rotor are is sealed, and inside there are large air to water heat exchangers that the air is drawn through as it c...
by Bentworker
Tue Jun 11, 2019 11:38 pm
Forum: General Discussion
Topic: Large motors and soft start
Replies: 30
Views: 3065

Re: Large motors and soft start

There are other ways of reduced winding voltage starting. Might be worth buying a motor control book and taking to your local motor rewind shop for other economical ideas.
by Bentworker
Sun Jun 09, 2019 4:31 pm
Forum: General Discussion
Topic: Large motors and soft start
Replies: 30
Views: 3065

Re: Large motors and soft start

Do you get billed for Kvar hours? FYI- out west small commercial where I am are paying $.60/kVar hour.....compared to about $.14 kWH. On the subject of fuses... The utility picks a primary fuse based on the size of the transformer. The transformer has a damage curve, it can be a little overloaded fo...
by Bentworker
Sun Jun 09, 2019 3:37 pm
Forum: General Discussion
Topic: Large motors and soft start
Replies: 30
Views: 3065

Re: Large motors and soft start

I'm on the Wye-Delta bandwagon. Probably the most cost effective. Might even be able to cobble one together with used parts. If blowing the utility owned fuses on the high side of the transformer still worries you… You may be able to make out the nameplate information of the transformers that serve ...
by Bentworker
Sun Jun 09, 2019 9:52 am
Forum: General Discussion
Topic: Large motors and soft start
Replies: 30
Views: 3065

Re: Large motors and soft start

Harold-
For clarification which type of starter do you have now?

Direct on line or Star-Delta?

I couldn’t make out what your current configuration is from your last post.
by Bentworker
Sun Jun 02, 2019 4:50 pm
Forum: General Discussion
Topic: Preparing Machines for Moving
Replies: 31
Views: 4611

Re: Preparing Machines for Moving

I’m all about lowering the center of gravity. On the Mill I would drop the knee all the way, and rotate the head 180 degrees so it is upside down. Personally I wouldn’t worry about leaving vices etc on the table. On the subject of handles. If it only takes a few minutes to remove them it might be wo...
by Bentworker
Thu Apr 11, 2019 3:15 pm
Forum: General Discussion
Topic: Cutting Mats
Replies: 8
Views: 1706

Re: Cutting Mats

I think they were made popular by the YouTube personality "AVE". OLFA is a good brand, can remember using one in the 1990's on sewing projects with one of the OLFA pizza cutter style fabric knives. They are neat just because they are tough, can be cleaned, and they are soft enough that if you drop a...
by Bentworker
Tue Apr 02, 2019 1:10 pm
Forum: General Discussion
Topic: Proud dad moment
Replies: 9
Views: 2076

Re: Proud dad moment

Cool! There is definitely a need for non vendor specific PLC and automation training / service. In the electric utility world I know I’d like a better grasp on all the Allen Bradley PLCs we have running all sorts of critical stuff. Hope they do well! Tell them to get involved in WEI and strongly con...
by Bentworker
Mon Jan 14, 2019 9:46 pm
Forum: General Discussion
Topic: Holes with interrupted cuts / offset holes, how to cut?
Replies: 17
Views: 2711

Re: Holes with interrupted cuts / offset holes, how to cut?

Yeah, those annular cutters are not cheap, especially the 2” depth of cut ones! I had access to several 1” depth of cut ones, but not anymore since I switched up employers.