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Search: Posts Made By: larry1larry
Forum: 50. Toolheads Tue 22 September 2009, 21:36
Replies: 47
Views: 32,166
Posted By larry1larry
I personally don't like the idea of mounting the...

I personally don't like the idea of mounting the whole cooling system on the gantry:
- having the whole water system (with higher leak potential) over the workpiece seems to invite a ruined...
Forum: 50. Toolheads Sun 20 September 2009, 17:49
Replies: 32
Views: 11,083
Posted By larry1larry
Vfd

Dave if you have 3/phase 220 use it.Using single phase would require larger wiring and a loss of power.
Larry
Forum: 50. Toolheads Fri 18 September 2009, 17:34
Replies: 32
Views: 11,083
Posted By larry1larry
Vfd

Hey Dave it is good to use a VFD of higher HP as VFD do not push current only supplyes what the motor wants.A 10HP or more VFD is OK.Too small aVfd will put a strain on the VFD.You can set current...
Forum: 50. Toolheads Wed 16 September 2009, 20:27
Replies: 32
Views: 11,083
Posted By larry1larry
Heath,I suppose the post got pruned as it was...

Heath,I suppose the post got pruned as it was blatant advertisement,but it answered many questions for me.I have been re-searching Chinese spindles on E-bay,Keling,Made in China etc and the powe...
Forum: 50. Toolheads Wed 16 September 2009, 18:19
Replies: 32
Views: 11,083
Posted By larry1larry
On another fourm with huanyang VFD'sI appears the...

On another fourm with huanyang VFD'sI appears the main problems are some or all the pushbuttons do not work.One supplier is sending buyers 10 spare switches and changed to another brand.
Just...
Forum: 50. Toolheads Mon 14 September 2009, 19:51
Replies: 32
Views: 11,083
Posted By larry1larry
Thanks Sean that answered my question. I agree...

Thanks Sean that answered my question.
I agree over 3 hp most spindles need 380V.This limits the home shop guys to 3HP max.
My shop voltage in Ontario Canada is 575V/3Ph so any large spindle can be...
Forum: 50. Toolheads Mon 14 September 2009, 17:15
Replies: 32
Views: 11,083
Posted By larry1larry
Maybe stupid questions. If you need 220V/3Ph...

Maybe stupid questions.
If you need 220V/3Ph out i assume you need 220 single Phase in if you do not have 220/3Ph.
The reason I ask is some of the spindles are for 380V/3Ph.I think a transformer is...
Forum: 50. Toolheads Tue 08 September 2009, 13:21
Replies: 47
Views: 32,166
Posted By larry1larry
Hay Heath, You would not need to...

Hay Heath,
You would not need to heat the water at 0C.Pro spindles,Colombo,HSD etc. rate the bearings at a max of 140F.May be you don't need cooling in the winter.A good temperature...
Forum: 50. Toolheads Sun 06 September 2009, 21:17
Replies: 38
Views: 21,093
Posted By larry1larry
James I agree some details would be nice.Tool...

James I agree some details would be nice.Tool holders+collets can be $200.00each.
Does the spindle come with sensors?Good question to ask Keling.Sensor#1 would be Tool in.Cost $160.Sensor#2 is...
Forum: 50. Toolheads Sun 06 September 2009, 20:28
Replies: 47
Views: 32,166
Posted By larry1larry
HSD,Colombo etc,spindles are rated for...

HSD,Colombo etc,spindles are rated for temperature of the bearings.They must be warmed up to operating temperature before use.10to 15 minute no load warmup is advised.Are the Chinese spindles...
Forum: 50. Toolheads Mon 10 August 2009, 00:27
Replies: 18
Views: 8,344
Posted By larry1larry
wary

The Chinese spindles look good.I am a bit wary of a company that does not know their spefications.From their spec chart:
Voltage 220
Amps 8
Power 2.2Kw
From what I know Watts=AmpsXVolts which in...
Forum: Archives Tue 19 February 2008, 22:33
Replies: 11
Views: 5,407
Posted By larry1larry
John here is a few more. http://www.sdp-si.com/...

John here is a few more.
http://www.sdp-si.com/
http://www.kelinginc.net/
Larry
Forum: Archives Tue 19 February 2008, 21:30
Replies: 11
Views: 5,407
Posted By larry1larry
John here is similar suppliers.Don't know if the...

John here is similar suppliers.Don't know if the ship to Canada.
http://www.reidsupply.com/index.aspx?refid=goo_rtool_reid_tool
http://www1.mscdirect.com/cgi/nnsrhm
Parts in Canada are difficult...
Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains Mon 31 December 2007, 17:00
Replies: 449
Views: 194,019
Posted By larry1larry
Bill & Doug, My first post here was in...

Bill & Doug,
My first post here was in Selecting motors thread and noticed the gear motors had less torque than the un geared motors.Orential motors are very expensive compared to others.When a...
Forum: Driving Mechanisms: Rack/pinion, gears, screws, belts & chains Sun 30 December 2007, 16:12
Replies: 449
Views: 194,019
Posted By larry1larry
I'm gunna get backlashing

I will probably get a lot of backlash on this idea,but only from the members.:D
You guys will probably"give me the gears"besides the "lashing"OK I am ready,got my helmet on.
For gear reduction why...
Forum: 60. Wiring & Cable Management Thu 13 December 2007, 09:59
Replies: 107
Views: 53,616
Posted By larry1larry
Hi Gerald, I was just looking at the pictures...

Hi Gerald,
I was just looking at the pictures at the start of the thread and thought the ground wires to the machine frame were separate wires.Upon reading I see there is only one wire,the others...
Forum: 60. Wiring & Cable Management Wed 12 December 2007, 20:13
Replies: 107
Views: 53,616
Posted By larry1larry
Being new here or"wet behind the ears"You guys...

Being new here or"wet behind the ears"You guys are going to be all over me on this one.
I have never heard of anyone using an aluminum heatsink or panel as a main ground or for star ground scheme.As...
Forum: Archives Tue 11 December 2007, 14:47
Replies: 151
Views: 45,187
Posted By larry1larry
Information overload. Sorry my brain is still...

Information overload.
Sorry my brain is still overloaded but I will try to make some assumptions.
From what I have read here,.66 is OK as all 4 steppers are never fully on at one time.the others...
Forum: Motors & their mountings Tue 11 December 2007, 14:47
Replies: 278
Views: 120,038
Posted By larry1larry
Information overload. Sorry my brain is still...

Information overload.
Sorry my brain is still overloaded but I will try to make some assumptions.
From what I have read here,.66 is OK as all 4 steppers are never fully on at one time.the others...
Forum: Archives Mon 10 December 2007, 21:49
Replies: 151
Views: 45,187
Posted By larry1larry
Hi Guys, This is my first post after reading...

Hi Guys,
This is my first post after reading everything on the forum about stepper motors.
My brain is fried for the moment,so I will make some unqualified statements.
If confused,should I just...
Forum: Motors & their mountings Mon 10 December 2007, 21:49
Replies: 278
Views: 120,038
Posted By larry1larry
Hi Guys, This is my first post after reading...

Hi Guys,
This is my first post after reading everything on the forum about stepper motors.
My brain is fried for the moment,so I will make some unqualified statements.
If confused,should I just...
Showing results 1 to 21 of 21

 
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