506,333 active members
2,543 visitors online
Register for free
Login
Page 1 of 3 123
Results 1 to 12 of 29
  1. #1
    Registered
    Join Date
    Jul 2011
    Posts
    121

    Tormach 770 Newbie?

    Looking into a used 770.
    Total newbie with minimal experience with my Taig but this popped up and I may jump on it.

    If I get a 770 what minimal tools should I be looking at? I plan on mostly doing aluminum
    It will come with the basic tool set (no end mills) and flood coolant (has height gauge too)
    I haven't seen a basic end mill set and drill set. Also can't decide if I should get 1 or 2 vises? Again not all that sure of what I will be doing just yet. Up until now most things have been 3"x4" since I'm limited on my current bed

    Also looking for a decent DIY enclosure. Tormach had one on their site but all links are broke and I can't fathom the idea of spending $3k on one.

    I love the idea of a fixture plate but only ever seen the one smw. However I'd too scared to crash into it for now so looking for some cheaper alternatives or if it's easy enough to make seeing how the 770 can thread.
    Obviously this is worlds apart from my little taig so want to be sure I dont waste money on non needed items.

    Any help is appreciated

  2. #2
    Junior Member
    Join Date
    Apr 2013
    Posts
    1439

    Re: Tormach 770 Newbie?

    Talk of "Minimal tools" and multiple vises and fixture plates probably should not be in the same sentence! And particularly not if you have no specific projects in mind.

    I assume that you have a way to cut stock to size.

    As a start I would purchase a clamp set, a single vise (I mostly use an overpriced 4-inch Kurt on my 770), a set of parallels, a half-dozen TTS holders (I prefer ER16 ones for both endmills and drills) together with collets, and a selection of endmills (I have gotten good results in aluminum with the Shars ZrN coated ones but YG1, Maritool and others make excellent products). You will certainly break some endmills so I would get a half-dozen of each of perhaps 1/8, 1/4 and 3/8 ones. Depending on your need for small holes you could purchase a set of drills from a quality maker such as Precision Drills. Alternatively, purchase only tap and clearance drills in sizes appropriate for your work.

    I assume that you have an edge finder and a way of setting the Z-height from your Taig work. If not, a Haimer 3D Taster might be a good purchase.

    A pendant such as the Tormach shuttle will be very helpful. Adding a Power Drawbar will be super useful but certainly not essential to start. Don't forget a selection of stock to work with.

    As you gain experience and tackle new projects you may want to explore using soft jaws (Monster Jaws are almost the same price as raw stock). And a way to surface stock such as the Tormach Superfly or a cheap far-East face mill. And of course spare inserts for your Superfly or whatever you choose.

    Although their prices are not the cheapest, Tormach has all of the above items on their website and may be a good source for a beginning user.

    Enjoy your new toy!

  3. #3
    Registered
    Join Date
    Jul 2011
    Posts
    121

    Re: Tormach 770 Newbie?

    I have one set of parallels but probably grab another

    It does come with a jog shuttle and a passive z probe. Not even sure if the passive probe does material height.

    I added some stuff to my cart, can you have a look? I do want some 5flute end mills for steel but considering the price I'll wait a little before getting into steel (until I get a good enclosure or the Tormach chip guard)

    I want the larger vise but it's out of stock currently. I do have a good amount of 1/4, 3/16, 1/8 end mills so just tossed in some 3/8 and 1/2 ones. I'll get another set of collets for sure. Does the TTS come with optional ER16 or Er20?

    I do have a guy who wants 50 of a piece if I can make them and they do have a large thread. So once I get the sample part I can take measurements off of I'm hoping it will be the first job I have and can knock it out quickly

    Is that superfly worth it or is there a better option from shars? I also would like a shear hog, but can probably wait as going 1/2" end mill will be a lot faster than my current 1/4

    Any other help is greatly appreciated
    Thanks!

  4. #4
    Junior Member
    Join Date
    Apr 2013
    Posts
    1439

    Re: Tormach 770 Newbie?

    In my opinion the Tormach chip guard is far more of a pain than a benefit; I'll happily donate mine.

    Tormach TTS holders are available in ER16, ER20 and ER32. Unfortunately there are no ER11 ones. You will want at least enough TTS holders to hold all tools required for a particular job since PathPilot essentially forces you to use the tool table unless the gcode for each cutter is in a separate file.

    I have a Superfly but almost never use it. In my opinion holding the cutter with only set screws is dangerous. In addition it is inherently unbalanced. I bought a cheap Chinese 4-insert facemill for SEHT1204 inserts (the same as the Superfly) is much better. Due to the rather puny 770 spindle motor I use it with only two inserts. See https://www.ebay.ca/itm/1P-KM12-50-2...t/163845371613 for a current listing although not the supplier that I used. If you go this route you will also need a 3/4-inch shank arbour (FMB22).

    I really like the 3/4-inch ShearHog and use it daily.

    Looking at your list:
    The Mitutoyo calipers are nicer since they are absolute. But they cost considerably more. In any case if dimensions to be checked are critical you probably want to use a micrometer rather than calipers.

    The clamping set appears to be for 3/8-inch studs; 1/2-13 studs are usual for a 770. Ensure that the chosen set includes the right size of T-nuts for your table slots.

    The listed vise seems extremely cheap. Does the supplier provide any specifications regarding base to table parallelism and other important specifications?

    Do you need long end mills for your planned work? They cost more than normal length plus tend to chatter. If you need to do very deep pockets you may want to investigate reduced shank end mills. If possible I choose stub rather than normal length. For larger cutters (1/2-inch or larger) I mostly use HSS rather than carbide. They tend to be much cheaper and seem to last almost as long as carbide ones.

  5. #5
    Registered
    Join Date
    Jul 2011
    Posts
    121

    Re: Tormach 770 Newbie?

    I have a small fly cutter now but scared to use it. They do just seem unstable. I would rather get a face mill

    Hmm I thought it was 3/8" slot. I'll call tormach to find out.
    I know a few guys with smaller mills used those vices and seemed to like them. I'm not looking for .0001 precision just enough to get me rolling and in the .005 category to start with.

    I was thinking long end mills so I can watch the cut easier and keep some clearance from the head to stock incase I F up something. I'll probably get both anyway

  6. #6
    Junior Member
    Join Date
    Apr 2013
    Posts
    1439

  7. #7
    Registered
    Join Date
    Aug 2009
    Posts
    291

    Re: Tormach 770 Newbie?

    Quote Originally Posted by Gamble View Post
    Also can't decide if I should get 1 or 2 vises?
    Since you're just starting out, I would agree with kstrauss and recommend one for now...at least until you get a better feel for what you'll be making.

    But, I wouldn't get the biggest vise you can find. The 770 has limited real estate, and one day you WILL want another vise, so get something that you can fit two of on the table. I use two Tormach 5" CNC vises and they fit very well. And if I need to hold something much larger, then two vises can be paired up so they are both holding the stock.

    I also agree on the ER16 over ER20 tool holders. The 770 does better running fast and light than slow and heavy, so that means smaller tools. The ER20 covers too much of the tool when using small endmills, so getting coolant in and chips out can be an issue.

    DIY enclosures are pretty simple. You can go the more rigid (and more expensive) route, but a "PVC pipe/shower curtain" setup works fine. Search for enclosures here in the Tormach section and you'll find great examples.

    A fixture plate is awesome to have, but expensive for just starting out. A good vise on the table will be fine.

    Good luck, and have fun!

  8. #8
    Registered
    Join Date
    Jul 2011
    Posts
    121

    Re: Tormach 770 Newbie?

    Do you think I can make a 1/2 size fixture plate and just add onto it later down the line? I like to have a little buffer above the table so I don't dive into it

  9. #9

    Re: Tormach 770 Newbie?

    The 4" Shars vises are pretty awesome little vises. I also like their 5" and 6" vise, I use them on my G0704, which as I recall, has a similar amount of space as the 770. I fairly often run two 4" vises. Of course it depends on what you are making what size vise you can get away with. And Shars sells soft jaws for all their vises, they are so cheap it's not worth making your own. The 6" vise is pretty big on my table, anything larger would be too much.

    https://www.shars.com/products/workh...-vise-0-0004-1

  10. #10
    Junior Member
    Join Date
    Apr 2013
    Posts
    1439

    Re: Tormach 770 Newbie?

    Quote Originally Posted by Gamble View Post
    Do you think I can make a 1/2 size fixture plate and just add onto it later down the line? I like to have a little buffer above the table so I don't dive into it
    Certainly. I even made a "micro" plate that fits in my little 4-inch Kurt vise. Another possibility is to clamp your stock on top of 1-2-3 blocks to provide for clearance underneath. Depending on accuracy requirements I often clamp on top of MDF to protect the mill table.

  11. #11
    Registered
    Join Date
    Jul 2011
    Posts
    121

    Re: Tormach 770 Newbie?

    Perfect.

    What do you recommend for flood coolant? Full or partial synthetic?

    Also what about this? Any downside to going to a 3" even if facing a stock that's smaller? The 3" shell mill is $99 and the 2" is $79
    And which inserts? Assuming different inserts for steel, vs stainless vs aluminum?

    https://www.amazon.com/gp/product/B0...NA6WTMGT&psc=1

  12. #12
    Junior Member
    Join Date
    Apr 2013
    Posts
    1439

    Re: Tormach 770 Newbie?

    I would not choose that face mill. It is R8 so not TTS compatible plus it doesn't appear to use positive rake inserts and therefore probably requires more power than a 770 can provide. The power concern is even worse with the larger mill. If you are using both smaller cutters and a large face mill on the same job you will need to move the belt between high/low range which I find to be time consuming and thus a huge pain. Also you cannot currently change the belt within a single gcode file. Tormach claims that as a new feature you can change the speed range at tool change time with PP 2.3.4 but I haven't yet tried that.

    I no longer use flood coolant so someone else will have to address that question.

Page 1 of 3 123

Similar Threads

  1. Replies: 3
    Last Post: 08-03-2017, 06:27 AM
  2. Tormach 1100 S3 using Tormach 1.5" face mill....
    By dneisler in forum Tormach Personal CNC Mill
    Replies: 24
    Last Post: 05-06-2015, 04:50 AM
  3. Newbie Tormach Vice Stop question
    By CadRhino in forum Tormach Personal CNC Mill
    Replies: 4
    Last Post: 06-03-2014, 04:12 PM
  4. New Tormach 1100 series 3 vs. Old Tormach 1100 series 1 to purchase
    By inventor1227 in forum Tormach Personal CNC Mill
    Replies: 13
    Last Post: 03-21-2012, 09:55 PM
  5. Newbie Q: (Mach/Gcode/Tormach?) display vars?
    By rc33 in forum Tormach Personal CNC Mill
    Replies: 10
    Last Post: 11-18-2008, 10:16 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •