Re: Mini Mill Harborfrieght

#73

How hot? That would be kind of important. They will run warm. If you can lay your hand on it, and keep it there, it's probably not too hot. If you can't, it is too hot. You might try aiming a fan at it, and see if that helps. Also blow the dust and dirt out of it, and check the brushes. if they're worn out, it has to work harder, and that will cause it to heat up more than it should.

HTH!

Bill in OKC

William R. Meyers, MSgt, USAF(Ret.)

A human being should be able to change a diaper, plan an invasion,
butcher a hog, conn a ship, design a building, write a sonnet, balance
accounts, build a wall, set a bone, comfort the dying, take orders,
give orders, cooperate, act alone, solve equations, analyze a new
problem, pitch manure, program a computer, cook a tasty meal, fight
efficiently, die gallantly. Specialization is for insects.
LAZARUS LONG (Robert A. Heinlein)

On Friday, June 18, 2021, 10:58:53 AM CDT, John Meyer <meyer2446@...> wrote:

I have a Harborfrieght Mini Mill and I noticed that the motor and spindle were hot to touch after 25-30 minutes of use in this current warmer summer temperature. My question is, is this a concern? Should I be worried, can it get over heated or is it just normal use? I hope this isn't an extremely dumb question but I just don't want to inadvertently burn out the motor or melt wires. Thank you in advance!?

Re: Mini Mill Harborfrieght

#72

The 40°C is hot.?

To find the temp you add in the room temperature to 40°C?

So room is 30°,C plus 40°C then motor is running at 70°C or 158°F.

Dave?

Re: Mini Mill Harborfrieght

#71

开云体育

Motors run hot in normal operation, there should be a name plate on every motor that states temperature rise.? As long as the motor stays cooler than that it's withing spec.

Notes:

temperature rise means above ambient.? 40C rise in a 40C room is getting kind of warm

the closer to room temperature you can keep the motor, the longer it will last

On 6/18/21 10:51 AM, John Meyer wrote:

I have a Harborfrieght Mini Mill and I noticed that the motor and spindle were hot to touch after 25-30 minutes of use in this current warmer summer temperature. My question is, is this a concern? Should I be worried, can it get over heated or is it just normal use? I hope this isn't an extremely dumb question but I just don't want to inadvertently burn out the motor or melt wires. Thank you in advance!?
_._,_._,_

-- 
Jerry Durand, WhatsApp, Telegram, VK, Signal, Gab
 &

Mini Mill Harborfrieght

#70

I have a Harborfrieght Mini Mill and I noticed that the motor and spindle were hot to touch after 25-30 minutes of use in this current warmer summer temperature. My question is, is this a concern? Should I be worried, can it get over heated or is it just normal use? I hope this isn't an extremely dumb question but I just don't want to inadvertently burn out the motor or melt wires. Thank you in advance!?

Spindle replacement new

#69

New spindle parts (May 21, 2021)
Check dimensions this site does have drill press parts too.

Dave?

https://m.aliexpress.com/item/1005001671134157.html?gps-id=platformRecommendH5&scm=1007.18499.187582.0&scm_id=1007.18499.187582.0&scm-url=1007.18499.187582.0&pvid=6af5f0d3-8e60-43d7-a37b-6d4dcc0316cb&_t=gps-id%3AplatformRecommendH5%2Cscm-url%3A1007.18499.187582.0%2Cpvid%3A6af5f0d3-8e60-43d7-a37b-6d4dcc0316cb%2Ctpp_buckets%3A668%230%23131923%2381_668%23888%233325%2310_8499%230%23187582%232_8499%234696%2321885%235_668%232846%238116%232002_668%235811%2327182%2351_668%232717%237563%23501__668%233374%2315176%23944&browser_id=a7a25fef4a4c45878d9bd189469b5551&aff_trace_key=673a80ad52c3460793dd2e2df8a3a246-1621184252144-06449-_ePNSNV&aff_platform=msite&m_page_id=0ot2gilj4lkcauzz1798f7bf5ab1ff48dae2f00b95&gclid=

Re: Big Red still new today

#68

It sells for $400.00
As mill it fill size that is not on market. It is larger than Mimi mill but smaller than other bench mill.

Dave

Re: Big Red still new today

#67

开云体育

??? ??? and it has High Precision & even is a Semi Automatic , sweet!!!!!! . no bayonet option ? bummer

??? animal

On 7/16/2020 2:13 PM, davesmith1800 wrote:

Show quoted text

The Big Red still manufacturer today

Dave

Re: Big Red still new today

#66

I have one of those (in red) purchased at least 20 years ago from Harbor Freight.? (They no longer carry that model.)? I basically use it as my main drill press; I have a Rong Fu RC-15 that's a far better machine for milling.? (Actually, I have an ancient Walker Turner machine that's a far better, although less versatile drill press)

The reason I use it so much is that it has an X-Y table, and enough capacity for most quick jobs I need to do.? It has measurable run-out (about 2 thou), but my biggest complaint is that X-Y table.? For some god-awful reason, the manufacturer chose to use 6 TPI lead screws.? That's right - 0.1667 per handle revolution.? Even 8 TPI would have been better than that - it's only easy to work out multiples of 1/2".? I was considering retro-fitting it for NC, or at least putting a DRO on it.? I don't feel it's accurate enough to justify NC-ing it, but the DRO seems like an attractive proposition practically every time I use it...
~~

Mark Moulding

Re: Big Red still new today

#65

开云体育

Vendors and prices will depend on where you're shipping to.? My new shop is 11 time zones to the East of my California shop, there's a train depot in town that connects to a big nearby seaport.? Your prices may vary.

On 7/16/20 2:54 PM, Hank Riley via groups.io wrote:

Approximate price?? ? ?Who sells it?

-- 
Jerry Durand, WhatsApp, Telegram, VK
 &

Re: Big Red still new today

#64

Approximate price?? ? ?Who sells it?

On Thursday, July 16, 2020, 05:27:23 PM EDT, Jerry Durand <jdurand@...> wrote:

Since I sold my big RF mill, I've got my eyes on a ZX50C with DRO.? Something like this one

Re: Big Red still new today

#63

开云体育

Since I sold my big RF mill, I've got my eyes on a ZX50C with DRO.? Something like this one

Of course that has to wait for us to get to the new place and epoxy-coat the floor.? At least I know people with trucks to pick it up and the local train depot and get it to my shop.

On 7/16/20 2:13 PM, davesmith1800 wrote:

The Big Red still manufacturer today

Dave
_._,_._,_

-- 
Jerry Durand, WhatsApp, Telegram, VK
 &

Big Red still new today

#62

The Big Red still manufacturer today

Dave

Re: Files section uploads

#61

Thank you
I thinking the default was opening to all

Dave

Files section uploads

#60

Hello everyone.

Somehow the files section was restricted to owners / moderators.

I thought I had changed that.? :(

Not much point in a files section if we cant share files.

So I changed it to allow members to upload files.

The usual restrictions apply.

Dont post non mill / metalworking things.? you know politics, religion and adult (other than metalworking) entertainment.

I am sure we get more than enough of that elsewhere.? If not just sign up for one of the "anti social" platforms...? :(

And please no content that you do not have permission to upload.

Chris (CB) group owner.

Re: Moving a Mill/Drill

#59

I use a engine hoist.

If need to know how to sling the mill just find a manual for any milldrill there will a photo how to hoist.?

After it ground you put on a moving cart .

Dave

Re: Moving a Mill/Drill

#58

开云体育

My HF one already had a bolt hole... hung well. See time lapse here. ?

Show quoted text

On Jul 15, 2020, at 12:50 PM, David R8 <davidwrate1@...> wrote:

?On Wed, Jul 15, 2020 at 10:28 AM, Rick Redfield wrote:

I need to move my Enco mill/drill from one location to another. I was thinking of drilling a half inch hole in the column just below the top cap and inserting a hardened bolt through the hole with a lifting shackle in the middle. Has anyone tried to lift a mill like this? I would have to determine how well the column is attached to the mounting pedestal to make sure it can support the weight of the table and base.

Thanks in advance for any help.

Rick Redfield

I just moved my mill last weekend. I used an engine hoist. I ran a chain under the head, then up and then back around under the motor mount and up to the hook on the hoist.
What I discovered was that the weight was heavily biased toward the front even though I cranked the head a low as it would go and ran the table toward the column as far as it could go.

It was still on the stand but the stand is completely symmetrical so I don't know that it contributed that much to the imbalance other than adding additional height that I needed to deal with.

I think your idea is a good one provided you have the vertical clearance.

LC-30A manual

David R8

#57

I want to add the manual for my Long Chang LC-30 but it doesn't look like I have the right permissions.

Attaching here instead

LC30A_manual.pdf

Re: Moving a Mill/Drill

David R8

#56

On Wed, Jul 15, 2020 at 10:28 AM, Rick Redfield wrote:

I need to move my Enco mill/drill from one location to another. I was thinking of drilling a half inch hole in the column just below the top cap and inserting a hardened bolt through the hole with a lifting shackle in the middle. Has anyone tried to lift a mill like this? I would have to determine how well the column is attached to the mounting pedestal to make sure it can support the weight of the table and base.

Thanks in advance for any help.

Rick Redfield

I just moved my mill last weekend. I used an engine hoist. I ran a chain under the head, then up and then back around under the motor mount and up to the hook on the hoist.
What I discovered was that the weight was heavily biased toward the front even though I cranked the head a low as it would go and ran the table toward the column as far as it could go.

It was still on the stand but the stand is completely symmetrical so I don't know that it contributed that much to the imbalance other than adding additional height that I needed to deal with.

I think your idea is a good one provided you have the vertical clearance.

Re: Moving a Mill/Drill

#55

I looped a lifting strap around the head between the quill feed and the column and lifted it from above.? ?hung just about?plumb

Show quoted text

On Wed, Jul 15, 2020 at 12:28 PM Rick Redfield via <RedfieldRH=[email protected]> wrote:

I need to move my Enco mill/drill from one location to another. I was thinking of drilling a half inch hole in the column just below the top cap and inserting a hardened bolt through the hole with a lifting shackle in the middle. Has anyone tried to lift a mill like this? I would have to determine how well the column is attached to the mounting pedestal to make sure it can support the weight of the table and base.

Thanks in advance for any help.

Rick Redfield

Moving a Mill/Drill

Rick Redfield

#54

I need to move my Enco mill/drill from one location to another. I was thinking of drilling a half inch hole in the column just below the top cap and inserting a hardened bolt through the hole with a lifting shackle in the middle. Has anyone tried to lift a mill like this? I would have to determine how well the column is attached to the mounting pedestal to make sure it can support the weight of the table and base.

Thanks in advance for any help.

Rick Redfield