Search found 81 matches

by CRM
Tue Sep 12, 2023 6:14 pm
Forum: Machining Strategies. Work Holding, Tool Path, Cutters, Feeds/Speeds etc.
Topic: home made large bore indexer
Replies: 5
Views: 2167

Re: home made large bore indexer

Yeah, MachinesUsed had a RZ-160 up for auction a couple months ago. I was excited because it listed the thru bore at 2.4 inches or something like that with only a 6" faceplate. So I went over to lay eyes on it myself. NOPE. The thru bore was way smaller than 2" (as you know). I only stated...
by CRM
Mon Sep 11, 2023 10:06 pm
Forum: Machining Strategies. Work Holding, Tool Path, Cutters, Feeds/Speeds etc.
Topic: home made large bore indexer
Replies: 5
Views: 2167

Re: home made large bore indexer

Tim-- What was the thru hole diameter of your 8" indexer? I have to be able to pass a full 2.000" diameter. That doesn't happen in any indexer I know of until about a 210 mm platter size (equiv to a Haas HRT-210) I bid an auction for a Haas HRT-210 up to $2,300 (with buyer's premium and ta...
by CRM
Wed Jul 05, 2023 3:56 pm
Forum: Machining Strategies. Work Holding, Tool Path, Cutters, Feeds/Speeds etc.
Topic: home made large bore indexer
Replies: 5
Views: 2167

home made large bore indexer

I'm not sure if I've picked the correct forum to post this question, so please move it if need be. I have retrofitted a SWI Trak DPM to Centroid ALLIN1DC control and want to add a 4th axis indexer to spline shafts. Here's the twist: I need to be able to pass a 2" diameter shaft thru the indexer...
by CRM
Fri Oct 15, 2021 10:44 am
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: Anilam (Baldor) DC Servo Power
Replies: 15
Views: 9139

Re: Anilam (Baldor) DC Servo Power

It is my understanding that you won't get full current unless you are loading at near full thrust. Lots of rapids ot motion reversals. Feel the servos for heat build up.
by CRM
Fri Oct 15, 2021 10:12 am
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: Anilam (Baldor) DC Servo Power
Replies: 15
Views: 9139

Re: Anilam (Baldor) DC Servo Power

Centroid will say for liability reasons that you need a step down transformer. So that's what I did at first. But I could not achieve the rapid speeds I had prior to swapping the old Prototrak control with the All In One DC control. Further inspection showed SouthWest Industries was using direct rec...
by CRM
Wed Oct 13, 2021 4:43 pm
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: Anilam (Baldor) DC Servo Power
Replies: 15
Views: 9139

Re: Anilam (Baldor) DC Servo Power

The initial config included a step down X-former. I could not achieve full rapid speed, so I took it out and am running about 6 volts above the max rated voltage for the servos. I do this at my own risk.
by CRM
Tue Aug 18, 2020 1:42 pm
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: setting Hitachi SJ200 / WJ200 VFD Dynamic braking parameters
Replies: 11
Views: 4113

Re: setting Hitachi SJ200 / WJ200 VFD Dynamic braking parameters

I would very much appreciate you sharing the configuration parameters. Just to be clear, mine is a SJ200, which is one generation older than yours, but it seems to be very similar. Not sure I could directly dump your parameters into mine, but it would certainly be helpful to compare them. I will che...
by CRM
Mon Aug 03, 2020 9:45 pm
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: setting Hitachi SJ200 / WJ200 VFD Dynamic braking parameters
Replies: 11
Views: 4113

Re: setting Hitachi SJ200 / WJ200 VFD Dynamic braking parameters

Those appear to be the correct parameters. I am not familiar with he Hitachi drives. Are you sure you have a built-in braking transistor? Can you post your drive model number? What values do you have in those parameters? Can you post all your parameters? Make sure that DC braking is disabled. How f...
by CRM
Mon Aug 03, 2020 9:26 pm
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: setting Hitachi SJ200 / WJ200 VFD Dynamic braking parameters
Replies: 11
Views: 4113

Re: setting Hitachi SJ200 / WJ200 VFD Dynamic braking parameters

Wow! Slip away for a little weekend of 4-wheeling and I get an avalanche of great advise. :) First, THANK YOU to Marc for a great explanation of what is going on inside the "black box". That helps me a lot to use my intuition in deciding what parameters may need adjustment. From the array ...
by CRM
Sun Aug 02, 2020 6:29 pm
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: setting Hitachi SJ200 / WJ200 VFD Dynamic braking parameters
Replies: 11
Views: 4113

setting Hitachi SJ200 / WJ200 VFD Dynamic braking parameters

Has anyone set up a Hitachi inverter for dynamic braking using an external braking resistor on a typical Bridgeport style spindle motor? I've had my VFD successfully running the spindle for about a year now, but I have gotten E-stop fault trips when programming spindle speed changes that are signifi...