Search found 53 matches

by Ben L
Tue 28 Mar , 2017 11:32 am
Forum: Novamill
Topic: spindle causing steppers to jog
Replies: 8
Views: 12071

Re: spindle causing steppers to jog

Thanks Steve, what you've said makes complete sense. Ive just got a tachometer so i'll measure the spindle speed and adjust the pot accordingly if required with any luck that will sort it.
by Ben L
Mon 27 Mar , 2017 1:47 am
Forum: Novamill
Topic: spindle causing steppers to jog
Replies: 8
Views: 12071

Re: spindle causing steppers to jog

Changed the title of the thread in the hope someone can help with this. After taking out the brushes and replacing them its been fine for a week. but today. scrapped an expensive piece of material due to the gaining steps. Is it noise or something else? Ive added thew riser block recently but I cant...
by Ben L
Sat 25 Mar , 2017 1:21 am
Forum: Novamill
Topic: Novamill Column Raising Block
Replies: 48
Views: 50314

Re: Novamill Column Raising Block

Looks good! It's on my to do list... I've stalled on the power drawbar, as I need to figure a plan of action to remove the head and refit plus align it again. Plus a snafu with incorrect measurements on the artwork, so I need to make a new plate :-/ How much did the spacer cost you in the end? Also...
by Ben L
Sun 19 Mar , 2017 22:01 pm
Forum: Novamill
Topic: spindle causing steppers to jog
Replies: 8
Views: 12071

spindle causing steppers to jog

I Have an issue, where with the spindle only running at rpm 3500+ my steppers start to "clunk" at irregular intervals. putting my hand on the x axis stepper it feels like it moves a tiny bit. On occasion I seem to be now gaining steps on the z axis I dont know if i'm correct but from what ive read i...
by Ben L
Fri 17 Mar , 2017 10:44 am
Forum: Novamill
Topic: Novamill Column Raising Block
Replies: 48
Views: 50314

Re: Novamill Column Raising Block

Image

Well here it is, Thank you all for the help, but especially Mike to get me here, its been a journey. Worth it! :D
by Ben L
Wed 15 Mar , 2017 23:44 pm
Forum: Novamill
Topic: Novamill Column Raising Block
Replies: 48
Views: 50314

Re: Novamill Column Raising Block

Hi What's the plan for shimming/aligning the head? Jon A combination of finger DTI and a dial gauge, lots of different gauge shim a 200mm round piece of plate glass and about 4 hours! :) It took much much longer than i thought it would but i'm happy with it at about 30 microns (0.03) i'm sure for s...
by Ben L
Mon 27 Feb , 2017 23:24 pm
Forum: Novamill
Topic: Novamill Column Raising Block
Replies: 48
Views: 50314

Re: Novamill Column Raising Block

Ok here we go! :) I started the procedure tonight, all seems well, only 2 cables to disconnect and the rest seem ok for enough slack to raise the head.
by Ben L
Fri 17 Feb , 2017 11:31 am
Forum: Novamill
Topic: Spindle warmup procedure
Replies: 1
Views: 3923

Re: Spindle warmup procedure

Thanks Joe, nice to see this.
Ive been running mine manually for a bit esp during the colder weather while the wood burner gets going. I never really gave it a thought write a program to do it for me lol :)
by Ben L
Sat 04 Feb , 2017 14:47 pm
Forum: Novamill
Topic: Novamill Column Raising Block
Replies: 48
Views: 50314

Re: Novamill Column Raising Block

Ben - yes that is the RS part number I purchased. Expensive for what it is, but made that part of the job pretty effortless. Do remember to note which wire/terminal goes in which hole! Don't attempt it with a dodgy hand - I was concerned about possibly scarring mating surfaces when replacing the co...
by Ben L
Fri 03 Feb , 2017 11:57 am
Forum: Novamill
Topic: Novamill Column Raising Block
Replies: 48
Views: 50314

Re: Novamill Column Raising Block

When I removed column from my Novamill (to cut weight for transit to new location) I disconnected all cables that go into the side of column from the multi-way connector on the side of the cabinet. This was to avoid chopping wires - I bought the proper Harting terminal removal tool (from RS) which ...
by Ben L
Sat 28 Jan , 2017 19:18 pm
Forum: Novamill
Topic: Novamill Column Raising Block
Replies: 48
Views: 50314

Re: Novamill Column Raising Block

Well that took a bit longer than i expected! but its here :) i'm so pleased its happened, now ive got to try and work out how to fit the bugger! Turns out my machine only has 4 mounting bolts, as opposed to 6 and the hole centers arent the same either anyone getting this done be aware of what you ha...
by Ben L
Mon 02 Jan , 2017 23:52 pm
Forum: Novamill
Topic: Novamill Column Raising Block
Replies: 48
Views: 50314

Re: Novamill Column Raising Block

Sorry to be a pain, but I would split the raising block 'the other way' so you have two lengths that run front to back, each containing 3 mounting holes. This way you will have one continuous surface to mount each side of the column too. These 2 blocks would suffice but for completeness and to keep...
by Ben L
Wed 21 Dec , 2016 2:26 am
Forum: Novamill
Topic: Novamill Column Raising Block
Replies: 48
Views: 50314

Re: Novamill Column Raising Block

using Mikes drawing ive split it this way, Ive also got the dwg if you want it. I dunno if this is the best way to split it but it seemed like the most logical, although 70mm stock is is harder to buy in small quantities tahn 35mm so maybe split through centre would be better still.
by Ben L
Fri 16 Dec , 2016 16:24 pm
Forum: Novamill
Topic: Novamill Column Raising Block
Replies: 48
Views: 50314

Re: Novamill Column Raising Block

If anyone else wants this done, Ive a quote back from a foundry, but it would only be viable really if I were to have a couple done 3 would make it pretty cheap. Cast iron spacer casting - £143 each Pattern to make the above casting - £415 lump sum both prices are ex works so + vat If there were a c...
by Ben L
Wed 14 Dec , 2016 23:05 pm
Forum: Novamill
Topic: Novamill Column Raising Block
Replies: 48
Views: 50314

Re: Novamill Column Raising Block

Ive tried 5 companies, 4 have said they wont do it at all, one of which is the company i use for water jet cutting, my thought was they could rough cut with the WJC and mill the faces to tolerance, If I had the machines thats what I would do. One company came back to me this week with a quote for £6...
by Ben L
Wed 14 Dec , 2016 13:48 pm
Forum: Novamill
Topic: Novamill Column Raising Block
Replies: 48
Views: 50314

Re: Novamill Column Raising Block

I hope someone can, help. My inexperience with machine tools is starting to show through :/ Ive been offered for someone to make this part from aluminium. Is that completely out of the question? I can see the obvious benefits for having it made from steel but what would be the drawbacks of having it...
by Ben L
Wed 07 Dec , 2016 23:49 pm
Forum: Novamill
Topic: Novamill Column Raising Block
Replies: 48
Views: 50314

Re: Novamill Column Raising Block

Ok Ive found someone who will at least take a look for me, all being well hes going to jet cut and then mill to tolerance. fingers crossed eh! :)
by Ben L
Fri 02 Dec , 2016 23:14 pm
Forum: Novamill
Topic: Novamill Column Raising Block
Replies: 48
Views: 50314

Re: Novamill Column Raising Block

ah nice one! I hadnt seen that thread before, it nice to see things in pictures, id like to add that t slot bed it would make life so much easier! :) Ive got the coventry easy change, but it seems to have either been modified or replaced with a lower profile model as it look like it doesnt come down...
by Ben L
Fri 02 Dec , 2016 1:55 am
Forum: Novamill
Topic: Novamill Column Raising Block
Replies: 48
Views: 50314

Re: Novamill Column Raising Block

Thanks for that Mike, I think I get it and i'm sure it will become clear when I see it now.


The hole below is what I meant sorry

Image
by Ben L
Thu 01 Dec , 2016 11:50 am
Forum: Novamill
Topic: Novamill Column Raising Block
Replies: 48
Views: 50314

Re: Novamill Column Raising Block

Right i'm going for it! Ive been reading that the Y stepper needs to be remounted up side down? , is there another thread with more info on doing it or is there anything I should be aware of before I go in ? One thing I do want to know is the hole on the middle strap reads Existing hole for clamping...